Stygarctus keralensis is a newly described species of marine Tardigrade. It is described from the intertidal area of Vadakara beach, Kerala, southwest coast of India. Presence of minute spikes on third lateral processes is unique character by which it can be easily differentiated from closely related species S. gourbaultae. This species was described by groups of researchers namely , S. Bijoy Nandan and of Cochin University of Science and Technology, Kerala, India and of University of Copenhagen, Denmark. This species has been named after "Kerala State" situated in the south west coast of India where this species live.