Anthocardia aculeata, the spiny cockle

Acanthinucella

Insecta

Acanthemblemaria

Acanthephippium

Monoceros paucilirata (Stearns, 1871)

Acanthidops bairdii

Acanthalburnus microlepis (De Filippi, 1863)

Animalia

IUCN3.1

Acanthis flammea rostrata

A. hitaensis

Brock, 1940

P21/n

clade Caenogastropoda

Pinna, 1974

Acanthobothrium bullardi is a species of parasitic onchobothriid tapeworm first found in the whiptail stingray, Dasyatis brevis, in the Gulf of California. It is relatively small, possesses few segments, relatively few testes, and shows asymmetrical ovaries. It also differs from its cogenerate species by its hook size and length of its hook prongs; cirrus sac size; the position of its genital pore, the number of testes columns that are anterior to the cirrus sac; as well as a number of postvaginal testes.

Acanthis (genus)

Purpura lapilloides var. aurantia (Dall, 1908)

Acanthinula aculeata is a species of minute, air-breathing land snail, a terrestrial pulmonate gastropod molluskor micromollusk in the family Valloniidae.

clade Hypsogastropoda

Acanthiza robustirostris

J. E. Böhlke, 1957

Acanthobrama centisquama

Acanthobrama microlepis

Acanthis cannabina

informal group Orthurethra

F. Cuvier, 1823

Acanthobasidium

Acanthella is a genus of two species of flowering plants in the family Melastomataceae. This genus is native to tropical South America.SpeciesAcanthella pulchra Gleason. VenezuelaAcanthella sprucei Hook. f. Brazil

Species

Unicornus typus (Montfort, 1810)

Acanthemblemaria balanorum

Acanthobrama

clade Stylommatophora

Acanthemblemaria rivasi, the spotjaw blenny, is a species of chaenopsid blenny found in coral reefs off Colombia and Costa Rica, in the western Atlantic Ocean.

Acanthicus adonis

Acanthinites

Acanthemblemaria paula

Acanthobemisia

Monoceros costatum (Sowerby, 1835)

Smith-Vaniz & Palacio, 1974

clade Panpulmonata

Acanthemblemaria crockeri, the browncheek blenny, is a species of chaenopsid blenny found in coral reefs in the Gulf of California, in the eastern central Pacific ocean. It can reach a maximum length of 6 cm (2.4 in) TL. This species feeds primarily on zooplankton.

synonyms ref

Acanthemblemaria atrata

clade Heterobranchia

Acanthicus

Acanthemblemaria hancocki, the Hancock's blenny, is a species of chaenopsid blenny found in coral reefs around Costa Rica and Panama, in the eastern central Pacific ocean. and can reach a maximum length of 4.5 cm (1.8 in) TL. This species feeds primarily on zooplankton.

Acanthite

etc.

Acanthinula

clade Neogastropoda

Acanthatrium hitaense

Acanthobrama Telavivensis

Acanthemblemaria castroi

J. T. Williams, 2002

Acanthinites is a genus of extinct cephalopods belonging to the ammonoid order Ceratitida described by Mojsisovics in 1893 who established the type species of the group as Acanthinites excelsus. The Shell is involute, compressed; sides arched, converging on narrow venter with a central furrow bordered by low serrated keels. Flanks are covered by numerous spiral rows of tubercles.Acanthinites has been found in the Alps, Himalayas, and Timor, and in the case of A. magnificus British Columbia in western Canada. Its fossils are found in the Norian stage of the Triassic Period, which lasted from about 216.5 to 203.6 million years ago.Acanthinites was previously included in the Certopleuitidae of the Clydonitaceae but now in the closely related Tibetitidae with certopleutids reduced to an included subfamily.Related genera include Cyrtopleurites, and Himavites.

Acanthiophilus

Acanthobrama hulensis

A. chaplini

species

Acanthemblemaria is a genus of Chaenopsid blennies native to the Atlantic and Pacific oceans.

Calanthe

Acanthemblemaria johnsoni

Acanthion is a subgenus of Old World porcupines in the genus Hystrix. It contains two species, H. javanica and H. brachyura, the smaller species with comparatively smaller nasals. The extant species have only one black ring or coloured part on the quills.

Acanthepeira

Indistinct

Acanthistius cinctus

Purpura novaehollandiae (Blainville, 1832)

J. E. Gray, 1851

Acanthennea erinacea

Acanthocardia is a genus of saltwater clams, marine bivalve molluscs in the family Cardiidae. Like most other bivalves, these mollusks are suspension feeders. This genus is present from the Upper Oligocene to the Recent.

Nucella acuminata (Carcelles, 1954)

Acanthinucella punctulata (previously known as Acanthina punctulata), common name: the spotted thorn drupe or "spotted unicorn", is a species of predatory sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

Acanthemblemaria harpeza is a species of chaenopsid blenny found around Navassa Island, in the western central Atlantic ocean.

clade Eupulmonata

A. unicornis

Acanthemblemaria crockeri range.png

Acanthis rostrata

Acanthistius

A. nicoi

Acanthemblemaria spinosa, the spinyhead blenny, is a species of blenny native to the tropical western Atlantic Ocean and Caribbean Sea.

Koga, 1953

Acanthephippium mantinianum

Acanthobrahmaea

Acanthina

Acanthinucella paucilirata

Monoceros striatum (Lamarck, 1822)

Acanthobothrium soberoni

Acanthistius ocellatus

Acanthemblemaria paula range.png

Adult male

Martens, 1898

Acanthobothrium rajivi is a species of parasitic onchobothriid tapeworm first found in the whiptail stingray, Dasyatis brevis, in the Gulf of California. It is relatively small, possesses few segments, relatively few testes, and shows asymmetrical ovaries. It also differs from its cogenerate species by its hook size and length of its hook prongs; cirrus sac size; the position of its genital pore, the number of testes columns that are anterior to the cirrus sac; as well as a number of postvaginal testes.

Acanthicus hystrix, is a species of armored catfish native to the Amazon, Tocantins-Araguaia and Orinoco River basins. This species grows to 73 cm (29 in) in SL.

Sakai & de Saint Laurent, 1989

Acanthobothrium dasi

Hope, 1833

Acanthea

A. tricolor

Acanthinula aculeata

Acanthiza iredalei

Becker, 1908

Acanthaxius is a genus of mud lobster native to the Indo-Pacific oceans. It has a slender rostrum which is longer than the eyestalks, is spinose and has seven spines and has a depth range of 228–438 metres (748–1,437 ft). It includes the following species:Three species of Acanthaxius have been found off the Solomon Islands.

Acanthemblemaria greenfieldi range.png

Arthropoda

A. amycteroides

Acanthiza katherina

A. adonis

Acanthistius is a genus of fish. Some authors place the genus in the family Serranidae, while some consider it to be incertae sedis, where it is not clear which family it belongs to.

Acanthobrama tricolor

A. exilispinus

Acanthis cabaret

Uneven

Acanthobunocephalus nicoi

Adult female

nicoi

Acanthina unicornis

clade Euthyneura

Acanthobrama microlepis, called the blackbrow bleak or the Caucasian bream, is a species of freshwater fish in the Cyprinidae family. It reaches a maximum size of 25 cm (9.8 in) TL. The species is found in lakes and rivers of the southwestern Caspian Sea drainage basin, including Sefīd-Rūd, Kura River and Aras River. It has also been introduced to Iraq.It is an ubiquitous species, which inhabits all kinds of freshwater bodies "with standing or slowly flowing waters as larger streams, rivers, reservoirs and lakes". Hydroelectric exploitation of the river systems does not seem to have impacted this species. Populations are in decline in Iran. The species is locally fished, but commands a low price, and is rarely a targeted species.

Acanthit

Acanthixalus spinosus is a species of frog in the family Hyperoliidae, the sedge and bush frogs. It is native to Africa, where it can be found in southeastern Nigeria and south- and eastward to Cameroon, Gabon, the Democratic Republic of the Congo, and the Republic of the Congo. It is also presumed to occur in the intervening/adjacent countries of Angola (in the Cabinda enclave), Equatorial Guinea, and the Central African Republic. Common name African wart frog has been coined for this species.

Acanthephippium javanicum

Cephalopoda

Acanthobrama terraesanctae

Acanthobrama tricolor, or the Damascus bream, is a species of freshwater fish in the Cyprinidae family. It is endemic to Syria and the Golan Heights, and is recently only known two specimens found in the Masil al Fawwar river system in the late 1980s. It has been extirpated from the Barada river system, where it has not been seen since 1908. It is considered Critically Endangered, and may possibly be extinct, but no studies of the river systems in the Golan Heights has been conducted, and it may still survive there, but the lower Barada is now dry, and the middle portions of the river are heavily polluted.

Acanthicus adonis, the adonis pleco, is a species of armored catfish endemic to Brazil. Though originally described from the lower Tocantins River, it is found more widely in the Amazon Basin. It is among the largest armored catfish species and reaches a length of 1 m (3.3 ft).The adonis pleco is dark brown to black with numerous white spots as a juvenile. As the fish matures, the spots fade. These plecos have slender, rough bodies, lyre-shaped tails, and pointed snouts. These fish are omnivores. Driftwood is also appreciated for grazing. Adonis plecos reach a considerable size and adults can be aggressive; they are only suitable for very large aquaria.

A. crockeri

iucn3.1

Acanthina, common name the unicorn snails, is a genus of small predatory sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails.

Acanthemblemaria maria

Acanthemblemaria betinensis, the speckled blenny, is a species of chaenopsid blenny found in coral reefs around Colombia, in the western Atlantic ocean.

Acanthinopus gibbosus is an extinct species of shrimp placed in its own genus, Acanthinopus, which has not been assigned to a family. It was found in Norian (Upper Triassic) sediments of the Zorzino Limestone in northern Italy.

Acanthella

Acanthesthes crispa

Acanthobrama microlepis, called the blackbrow bleak or the Caucasian bream, is a species of freshwater fish in the Cyprinidae family. It reaches a maximum size of 25 cm (9.8 in) TL. The species is found in lakes and rivers of the southwestern Caspian Sea drainage basin, including Sefīd-Rūd, Kura River and Aras River.

Acanthobrama marmid, or the Mesopotamian bream, is a species of freshwater fish in the Cyprinidae family. It is widespread and abundant in the Tigris–Euphrates river system. It lives in many kinds of lowland waters, and can also tolerate modified water bodies such as reservoirs and moderately-polluted rivers.It can grow up to a length of 30 cm. It is caught commercially but is of low value.

Acanthiza inornata

Acanthemblemaria hastingsi, the Cortez barnacle blenny, is a species of chaenopsid blenny found in the Gulf of California, in the eastern Pacific ocean. Males can reach a maximum length of 5.1 cm (2.0 in) SL, while females can reach a maximum length of 4 cm (1.6 in).

Acanthobrama centisquama (the long-spine bream) is a species of freshwater fish in the Cyprinidae family. It is known from Syria and Turkey, and there restricted to Lake Amik and al-Gab Lake. Lake Amik has been drained, and this species has not been found here since the early 20th century, and may be extinct. There may be remnant populations present in Gölbaşı Lake, which is impacted by pollution and water abstraction.

Acanthobothrium

Acanthemblemaria betinensis range.png

Acanthinula spinifera is a species of minute air-breathing land snail in the family Valloniidae. It is endemic to the Canary Islands.This snail occurs on Tenerife and La Palma. Little is known about the species, but it is thought to be rare.

Acanthobothrium rajivi

Rolfe

Acanthina monodon

Spinyhead blenny

Metallic

Acanthemblemaria castroi, the Galapagos barnacle blenny, is a species of chaenopsid blenny endemic to coral reefs in the Galapagos Islands, in the southeast Pacific ocean. It can reach a maximum length of 6 cm (2.4 in) TL.

A hermit-crabbed shell of Acanthinucella punctulata

Acanthobrama hulensis was a species of ray-finned fish in the Cyprinidae family. Its natural habitats were swamps and freshwater lakes in Lake Hula in northern Israel. Acanthobrama hulensis looked much like a sardine. In Israel other members of the genus often are called "sardin" in culinary terms.The deliberate draining of Lake Hula in the 1950s led to the extinction of this species, along with the cichlid fish Tristramella intermedia. The Israel painted frog was believed to be extinct until a female specimen was found in 2011. Acanthobrama hulensis was last recorded in 1975.

Acanthemblemaria atrata range.png

Acanthemblemaria mangognatha

A. aspera

Acanthixalus sonjae (common name: Ivory Coast wart frog) is a species of frog in the family Hyperoliidae. It is found in south-western Ivory Coast (including Taï National Park, its type locality) and in south-western Ghana, and possibly in adjacent Liberia.

Acanthephippium bicolor

Buchholz and Peters, 1875

Acanthemblemaria aspera, Adult Female .jpg

Heckel, 1843

Acanthemblemaria macrospilus 3.jpg

Acanthemblemaria crockeri

A. paucilirata

Acanthatrium hitaensis is a species of a trematode, or fluke worm, in the family Lecithodendriidae.

Acanthephippium sinense is a species of plant in the Orchidaceae family. It is found in China and Hong Kong.

Tortonese, 1952

Acanthedra

Purpura spirata (Blainville, 1832)

Acanthesthes crispa is a species of beetle in the family Cerambycidae. It was described by Olivier in 1792.

Acanthis flammea cabaret

Acanthis

G. S. Myers & Reid, 1936

October 2016

Abramis microlepis (De Filippi, 1863)

A. delicatum

Acanthixalus sonjae Distribution Map.png

Monoceros breve (Sowerby, 1821)

clade Heterobranchia
clade Euthyneura

Acanthesthes is a genus of longhorn beetles of the subfamily Lamiinae, containing the following species:Acanthesthes amycteroides (White, 1858)Acanthesthes crispa (Olivier, 1792)

Acanthocalycium klimpelianum

Acanthemblemaria maria, the secretary blenny, is a species of chaenopsid blenny found in coral reefs from the Bahamas to Tobago, in the western central Atlantic ocean. It can reach a maximum length of 5.1 cm (2.0 in) TL.

Acanthobrahmaea is a subgenus of moths of the Brahmaeidae family. This moth is an endemic relict species that only occurs in the vicinity of the Monte Vulture in Italy.

A. maria

Rosenblatt & McCosker, 1988

Sakai, 1987
Acanthaxius

Acanthinites is a genus of extinct cephalopods belonging to the ammonoid order Ceratitida described by Mojsisovics in 1893 who established the type species of the group as Acanthinites excelsus. The Shell is involute, compressed; sides arched, converging on narrow venter with a central furrow bordered by low serrated keels. Flanks are covered by numerous spiral rows of tubercles.Acanthinites has been found in the Alps, Himalayas, and Timor, and in the case of A.

Acanthiophilus is a genus of tephritid or fruit flies in the family Tephritidae.

Acanthocardia

Acanthinucella spirata is a species of predatory sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

Acanthobrama terraesanctae, the Kinneret bream, is a species of freshwater fish in the Cyprinidae family. It is known from two lakes: Lake Tiberias (Sea of Galilee, Lake Kinneret), Israel, and Lake Muzarib, Syria. This is a small planktivorous fish, typically about 14 cm long, occurring near surface in large schools. It is very abundant in Lake Tiberias, whereas there is little information on the other lake, which is small (0.5 km2) and can hold a small population anyway.

Acanthis (disambiguation)

Acanthidris

Monoceros calcar (sensu Martyn, 1784 Deshayes, 1844)

The roughhead blenny (Acanthemblemaria aspera) is a species of blenny native to the tropical western Atlantic Ocean. Typical length is 19 mm (0.75 in) for adult males and 21 mm (0.83 in) for females.

Black

Acanthemblemaria exilispinus

Acanthenchelys spinicauda

A. erinaceum

Acanthemblemaria spinosa

Acanthiza murina

Plantae

Acanthiza cinerea

H. C. Lin & Galland, 2010

Acanthemblemaria aspera range.png

Acanthocalycium glaucum

Acanthemblemaria aspera

Acanthetaxalus

Acanthis (Ἀκανθίς) or Acanthyllis (Ἀκανθυλλίς) was the daughter of Hippodamia and Autonous and sister to Anthus, Erodius, Schoenous and Acanthus. When their father's horses attacked Anthus out of hunger and ate him, Zeus and Apollo, out of pity for the grieving family, transformed them into birds. Acanthis thus became a thistle finch.

Acanthocalyx is a genus of about three species of plants in the family Caprifoliaceae, sometimes included in Morinaceae, native to Sino-Himalayan Region.SpeciesAcanthocalyx alba ( Hand.-Mazz. ) M.J.CannonAcanthocalyx delavayi ( Franchet ) M.J.CannonAcanthocalyx nepalensis ( D.Don ) M.J.Cannon

( Goren, Fishelson & Trewavas, 1973 )

Acanthobrama lissneri

Acanthesthes amycteroides is a species of beetle in the family Cerambycidae. It was described by White in 1858.

Acanthocalycium

Acanthemblemaria mangognatha, the Revillagigedo barnacle blenny or the Revillagigedo barnacle, is a species of chaenopsid blenny endemic to the Revillagigedo Islands of Mexico, in the eastern central Pacific ocean. It can reach a maximum length of 3.1 cm (1.2 in) SL.

''Acanthixalus sonjae

Acanthemblemaria hancocki range.png

Beebe & Tee-Van, 1938

A. lissneri

Acanthemblemaria betinensis

Acanthemblemaria hastingsi

Acanthobrama marmid

Acanthephippium mantinianum or Mantin's Acanthephippium, is a species of the family Orchidaceae. It is currently the only endemic Acanthephippium species known in the Philippines and one of the two species alongside with Acanthephippium pictum. It was named in honor of M. Georges Mantin, an orchid horticulturalist and hybridizer from Olivet, France. It is an erect and sympodial species with 15 cm long tapering pseudobulbs and large, thin leaves, which can be up to 60 cm long and 15 cm wide. The plant is endemic to the islands of Luzon, Leyte, Mindoro, Negros and Panay in the Philippines where it is found at elevations from 500 to 1500 meters.

Acanthisittidae

A. norvegicum

Acanthisitti

Acanthina laevigata (Fischer, 1807)

Acanthemblemaria greenfieldi, the false papillose blenny, is a species of chaenopsid blenny found in coral reefs in the western Atlantic ocean.

A. stephensi

Acanthegenys

J. E. Böhlke, 1961

Acanthixalus spinosus map-fr.svg

Acanthixalus sonjae

Acanthemblemaria greenfieldi

Acanthinucella spirata

Acanthobrama hadiyahensis

Acanthocardamum

A. centisquama

Acanthemblemaria exilispinus, the bluntspine blenny, is a species of chaenopsid blenny found in coral reefs from Costa Rica to Ecuador, in the eastern central Pacific ocean. It can reach a maximum length of 5.5 centimetres (2.2 in) TL. This species feeds primarily on zooplankton.

Acanthinopus gibbosus

Acanthinodera cumingii

Acanthemblemaria stephensi, the Malpelo barnacle blenny, is a species of chaenopsid blenny found in coral reefs around Malpelo Island, in the eastern Pacific ocean. It can reach a maximum length of 5 cm (2.0 in) TL. This species feeds primarily on zooplankton.

A. macrospilus

A. spinifera

Acanthemblemaria stephensi

Four shells of Acanthinula aculeata, scale bar in mm

Metzelaar, 1919

Acanthobrama is a genus of ray-finned fish in the Cyprinidae family found mostly in the Near East.

Acanthiza pusilla

Friel, 1995

Acanthemblemaria hancocki

Acanthetaxalus bostrychoides

A. crispa

Acanthemblemaria chaplini range.png

Purpura brevidens (Conrad, 1837)

A. aculeata

Acanthina spirata

Acanthocalycium spiniflorum

Acanthephyridae

Mojsisovics 1893

A. mangognatha

Acanthennea

A. rivasi

Acanthaxius pilocheirus

Ghoshroy & Caira, 2001

Mousson, 1872

Almany & C. C. Baldwin, 1996

Linnaeus, 1758

Bloch, 1793

Acanthemblemaria harpeza

Mirogrex hulensis

Acanthocalyx

Acanthinula spinifera

Acanthemblemaria chaplini

Thell

Acanthobrama hadiyahensis is a species of freshwater cyprinid fish, which has been described from Wadi Hadiyah, Saudi Arabia.

Acantho-

Iron-black

Acanthennea erinacea is a species of air-breathing land snail, terrestrial pulmonate gastropod mollusk in the family Streptaxidae.Acanthennea erinacea is the only species within the genus Acanthennea.

Isbrücker & Nijssen, 1988

Acanthina costata (Fischer, 1807)

A. mantinianum

A. hastingsi

Acanthizae

Acanthobrama lissneri, or the Jordan bream, is a species of freshwater fish in the Cyprinidae family. It is found in Israel and Jordan. Its natural habitats are rivers and lakes, and is now commonly found in reservoirs.

Acanthemblemaria johnsoni, the white-cheeked blenny, is a species of chaenopsid blenny found in coral reefs around Tobago, in the western central Atlantic ocean.

Acanthepeira is a genus of spiders in the Araneidae family. It was first described in 1883 by Marx. As of 2017, it contains 5 species.

Ennea erinaceus Martens, 1898

Fischer von Waldheim, 1807

Acanthocalycium ferrarii

A. hancocki

Acanthinula is a genus of minute, air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the family Valloniidae.

A. atrata

informal group Sigmurethra

Acanthinodera cumingii (Spanish: Madre de la Culebra, literally "mother of the snake") is a longhorned beetle in the family Cerambycidae and subfamily Prioninae. It is the only species in the genus Acanthinodera, and is one of the largest species of beetle in Chile. The beetle is endemic to central Chile and can be found from IV Coquimbo Region to IX La Araucanía Region.

Acanthesthes amycteroides

Acanthiza reguloides

Acanthemblemaria medusa

Oberw.

Acanthina punctulata

Monoceros unicarinata (Sowerby, 1835)

Acanthobrama hulensis was a species of ray-finned fish in the Cyprinidae family. Its natural habitats were swamps and freshwater lakes in Lake Hula in northern Israel. Acanthobrama hulensis looked much like a sardine. In Israel other members of the genus often are called "sardin" in culinary terms.The deliberate draining of Lake Hula in the 1950s led to the extinction of this species, along with the cichlid fish Tristramella intermedia.

Acanthobunocephalus

Acanthephippium is a genus of orchid with twelve species (family Orchidaceae). The name of this genus is derived from the Greek words acanthos ("spiny") and ephippion ("saddle"), referring to the saddle-like labellum of the plants.This terrestrial and sometimes myco-heterotrophic genus of sympodial orchids is distributed from the Indian subcontinent to China, Japan, Southeast Asia, New Guinea and the southwest Pacific.The terrestrial species are up to 80 cm tall. They have short rhizomes. The oblong and fleshy pseudobulbs are up to 25 cm tall. They produce at their apex 2 to 3 large plicate, lanceolate, parallel-veined leaves, which can be up to 65 cm long.The erect inflorescence arises laterally from the pseudobulbs, with 3 to 6 flowers, subtended by large, glabrous bracts. The flowers are prominent, large, striated cup- or urn-shaped, fleshy, waxy, and about 4 cm long. They resemble a tulip, a most unusual shape for an orchid. The flowers have a wide range of colors, from dull yellow to red to shades of orange and pink, marked with stripes or spots. The blossoms are usually odiferous with a very strong fragrance.This genus is allied to genera Calanthe, Cephalantheropsis, Phaius, and Spathoglottis.

Acanthina imbricata (Fischer, 1807)

Acanthatrium hitaensis

Monoceros citrinum (Sowerby, 1835)
Monoceros globulus (Sowerby, 1835)

Acanthocalycium aurantiacum

Acanthephippium javanicum is a species of orchid and the type species of its genus. It is found in West Malaysia, Borneo, Java, Sumatra and New Guinea.

Cooke, 1918

A. sinense

Acanthermia is a genus of moths of the Noctuidae family.

A. cumingii

Beck, 1847

Acanthina monodon is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

A. betinensis

Acanthobasidium is a genus of fungi in the Stereaceae family. The genus, which contains three species found in Europe, was circumscribed by mycologist Franz Oberwinkler in 1966.

Buccinum monoceros (Bruguière, 1789)

Acanthinopus

Acanthocalycium violaceum

Acanthephippium bicolor is a species of orchid that is native to South India, Sri Lanka and New Guinea.

Hastings & D. R. Robertson, 1999

Acanthemblemaria rivasi

Acanthisitta

Acanthocalycium peitscherianum

Acanthixalus, commonly known as the African wart frogs, is a small genus of frogs in the Hyperoliidae family. They occur in rainforests of West and Middle Africa, from Ivory Coast to Congo.

Acanthaxius hirsutimanus

Acanthemblemaria chaplini, the papillose blenny, is a species of chaenopsid blenny found in the western Atlantic ocean. It can reach a maximum length of 4.5 centimetres (1.8 in) TL.

Acanthinucella paucilirata is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

Acanthocardamum erinaceum

A. medusa

A. bostrychoides

See text

Acanthobunocephalus nicoi is the only species of catfish (order Siluriformes) in the genus Acanthobunocephalus of the family Aspredinidae. This species is known from only three localities and appears to be restricted to the upper Orinoco River system of Venezuela and possibly the upper Rio Negro system of Brazil.Acanthobunocephalus nicoi can be differentiated from other aspredinids by the presence of a dorsal fin spine locking mechanism and a rigid dorsal fin spine.

Acanthephippium is a genus of orchid with twelve species (family Orchidaceae). The name of this genus is derived from the Greek words acanthos ("spiny") and ephippion ("saddle"), referring to the saddle-like labellum of the plants.This terrestrial and sometimes myco-heterotrophic genus of sympodial orchids is distributed from the Indian subcontinent to China, Japan, Southeast Asia, New Guinea and the southwest Pacific.The terrestrial species are up to 80 cm tall. They have short rhizomes.

Steinitz, 1952

Rodentia

Primary crystals rare, prismatic to long prismatic, elongated along [001], may be tubular; massive. Commonly paramorphic after the cubic high-temperature phase , of original cubic or octahedral habit
Acanthite is a form of silver sulfide with the chemical formula Ag2S. It crystallizes in the monoclinic system and is the stable form of silver sulfide below 173 °C (343 °F). Argentite is the stable form above that temperature. As argentite cools below that temperature its cubic form is distorted to the monoclinic form of acanthite. Below 173 °C acanthite forms directly. Acanthite is the only stable form in normal air temperature.

Acanthinodera

Acanthemblemaria macrospilus

G. D. Johnson & Brothers, 1989
Acanthemblemaria paula, the dwarf spinyhead blenny, is a species of chaenopsid blenny found in coral reefs around Belize, in the western central Atlantic ocean. It can reach a maximum length of 1.8 cm (0.71 in) SL.

Agassiz, 1829

Acanthobrahmaea europaea

Acantho

December

Acanthemblemaria exilispinus range.png

Acanthemblemaria atrata, the Cocos barnacle blenny, is a species of chaenopsid blenny native to the Pacific Ocean waters around Cocos Island, Costa Rica. This species reaches a length of 3.2 centimetres (1.3 in) SL.

Acanthicus adonis, the adonis pleco, is a species of armored catfish endemic to Brazil. Though originally described from the lower Tocantins River, it is found more widely in the Amazon Basin. It is among the largest armored catfish species and reaches a length of 1 m (3.3 ft).The adonis pleco is dark brown to black with numerous white spots as a juvenile. As the fish matures, the spots fade. These plecos have slender, rough bodies, lyre-shaped tails, and pointed snouts.

Acanthium

Acanthatrium

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Acanthiza lineata

Acanthixalus

Acanthermia

A live Acanthinucella spirata

Opaque

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Range of Acanthiophilus in Europe

Acanthinucella is a genus of sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails.

Acanthixalus spinosus''

Acanthicus hystrix

Acanthiza nana

A. hulensis

A. johnsoni

Acanthobothrium bullardi

Acanthephippium mantinianum or Mantin's Acanthephippium, is a species of the family Orchidaceae. It is currently the only endemic Acanthephippium species known in the Philippines and one of the two species alongside with Acanthephippium pictum. It was named in honor of M. Georges Mantin, an orchid horticulturalist and hybridizer from Olivet, France. It is an erect and sympodial species with 15 cm long tapering pseudobulbs and large, thin leaves, which can be up to 60 cm long and 15 cm wide.

Acanthemblemaria balanorum is a species of fish in the family Chaenopsidae known by the common names clubhead blenny and clubhead barnacle blenny. It is native to the eastern Pacific Ocean, where it occurs from the Gulf of California along the coast of Mexico south to Colombia and Ecuador.This fish lives in rocky reef habitat in tropical marine waters no deeper than 5 meters. It inhabits empty barnacle shells, in particular those of Megabalanus tintinnabulum.

Acanthixalus spinosus

Acanthemblemaria macrospilus, the barnacle blenny, is a species of chaenopsid blenny found in coral reefs in the eastern central Pacific ocean. It can reach a maximum length of 6 cm (2.4 in) TL. This species feeds primarily on zooplankton.

Sectile

Acanthiza apicalis

Acanthizinae

Acanthis hornemanni

Buccinum monodon (Pallas, 1774)

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Acanthethesia

Breuning, 1961

Acanthisitta chloris

Acanthemblemaria medusa, the medusa blenny, is a species of chaenopsid blenny found in coral reefs around Lesser Antilles, in the western central Atlantic ocean. It can reach a maximum length of 4 cm (1.6 in) TL.

adonis

Acanthocalycium is a genus of cactus consisting of several species from Argentina. The taxon name comes from Greek akantha (meaning prickly) and kalyx (meaning buds), which refers to the spines on the floral tubes.These plants are globose to elongate, with numerous ribs on the spiny stems. Flowers range from white to pink to red and open during the day.

Mollusca

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Acanthesthes

A. erinacea

Buccinum unicornis (Bruguiere, 1789)

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J. S. Stephens & Hobson, 1966

Monoceros crassilabrum var. album (Sowerby, 1835)

Acanthalburnus (L. S. Berg, 1916)

Ag2S

Acanthinucella punctulata

A. gibbosus

Acanthemblemaria balanorum is a species of fish in the family Chaenopsidae known by the common names clubhead blenny and clubhead barnacle blenny. It is native to the eastern Pacific Ocean, where it occurs from the Gulf of California along the coast of Mexico south to Colombia and Ecuador.This fish lives in rocky reef habitat in tropical marine waters no deeper than 5 meters. It inhabits empty barnacle shells, in particular those of Megabalanus tintinnabulum. The female lays eggs inside the shell and the male guards them. This fish feeds primarily on zooplankton.

Acanthidops bairdi

A. hystrix

Hampson, 1926

zoosubsectio

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See text.

Acanthobothrium soberoni is a species of parasitic onchobothriid tapeworm first found in the whiptail stingray, Dasyatis brevis, in the Gulf of California. It is relatively long and with a larger number of segments, albeit with fewer testes and an asymmetrical ovary.

Acanthina unicornis is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

Laurent, 1944

Acanthobothrium bullardi is a species of parasitic onchobothriid tapeworm first found in the whiptail stingray, Dasyatis brevis, in the Gulf of California. It is relatively small, possesses few segments, relatively few testes, and shows asymmetrical ovaries.

A. bicolor

A. castroi

A. paula

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Acanthalburnus microlepis

Acanthi

J. S. Stephens, 1970

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A. microlepis

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A. marmid

A. hadiyahensis

* Monoceros Lamarck, 1809
* Rudolpha Schumacher, 1817
* Unicornus Montfort, 1810

Leuciscus tricolor (Lortet, 1883)

* Monoceros Lamarck, 1809 (Invalid: junior homonym of Monoceros Lacépède, 1798[Pisces]and others))

Linden & Cogn.

Acanthis flammea

A. spinosa

Acanthiza uropygialis

Polysynthetic on {111}, may be very complex due to inversion; contact on {101}

A shell of A. punctutulata with a hermit crab

* Monoceros punctulatum (Sowerby, 1835)
* Purpura lapilloides (Conrad, 1837)

A. javanicum

Acanthemblemaria cubana

A. greenfieldi

Sauter, 1967

Acanthite on calcite - Locality: Freiberg District, Erzgebirge- Scale is one inch with a rule at one cm

Acanthephippium sinense

A. balanorum

Marx

Acanthobrama tricolor, or the Damascus bream, is a species of freshwater fish in the Cyprinidae family. It is endemic to Syria and the Golan Heights, and is recently only known two specimens found in the Masil al Fawwar river system in the late 1980s. It has been extirpated from the Barada river system, where it has not been seen since 1908.

Acanthocardamum is a monotypic genus in the family Brassicaceae, native to southern Iran. The sole species is Acanthocardamum erinaceum.

J. S. Stephens, 1963

Acanthobothrium soberoni is a species of parasitic onchobothriid tapeworm first found in the whiptail stingray, Dasyatis brevis, in the Gulf of California. It is relatively long and with a larger number of segments, albeit with fewer testes and an asymmetrical ovary. It also differs from its cogenerate species by its hook size and length of its hook prongs; cirrus sac size; the position of its genital pore, the number of testes columns that are anterior to the cirrus sac; as well as a number of postvaginal testes.

InternetArchiveBot

A. spirata

Prismatic

Four shells of Acanthinula aculeata

Buccinum dentatum (Wood, 1818)

Acanthobunocephalus nicoi is the only species of catfish (order Siluriformes) in the genus Acanthobunocephalus of the family Aspredinidae. This species is known from only three localities and appears to be restricted to the upper Orinoco River system of Venezuela and possibly the upper Rio Negro system of Brazil.Acanthobunocephalus nicoi can be differentiated from other aspredinids by the presence of a dorsal fin spine locking mechanism and a rigid dorsal fin spine. The lateral line is truncated at about the dorsal fin level. The head is depressed and the caudal peduncle is slender, tapering to the caudal fin. The mouth is terminal, with the jaws and lips equal. The dorsal and anal fin membranes are not adnate with the body. These fish reach sexual maturity at just over 16 millimetres (.63 in) SL, and have not been observed to exceed 20 mm (.79 in) SL.This species is found in flooded plants, primarily grasses and sedges, in black water (stained by tannin).

Coad, Alkahem & Behnke, 1983

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Acanthis (mythology)

Monoceros imbricatum (Lamarck, 1816)

Acanthion

Acanthedra stolidota

A. phragmitis

A. terraesanctae

A. monodon
Buccinum narval (Bruguière, 1789)

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Monoceros glabratum (Lamarck, 1816)

Acanthiza reguloides reguloides

Acanthiza ewingii

see text.

Blume, 1825

Acanthidops

Rödel, Kosuch, Veith, and Ernst, 2003

Monoceros crassilabrum (Lamarck, 1816)

Acanthobothrium rajivi is a species of parasitic onchobothriid tapeworm first found in the whiptail stingray, Dasyatis brevis, in the Gulf of California. It is relatively small, possesses few segments, relatively few testes, and shows asymmetrical ovaries.

A. harpeza

Acanthita

Hyperolius spinosus (Buchholz and Peters, 1875)

Tiegh.

A. punctulata

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yes

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incertae sedis

Monoceros acuminatum (Sowerby, 1835)

Purpura engonata (Conrad, 1837)

Hystrix

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Hyperolius spinosus

See Section Species

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Acanthobasidium delicatum

Acanthiza chrysorrhoa