Thalassinidæ (thalasinide)

pl. [NL., completely divided or reduced to epipodites, the pleuro branchise not more than four and not posterior, and the branch iæ with foliaceous as well as filamen to us proce es. They are remarkable for the length of the abdomen IMG:content-0181.jpg:[graphic] Thalarctos (J. E. Gray, 1825) and Thalarctus ), θάλασσα , the sea, + άρκτος , bear.] That geand the softne of the test, and nus of Ursidæ which contains the polar bear, T. maritimus. See cut under bear2 . Thala eus (tha-las'e-us), n. [NL. (Boie, 1822), θαλασσεύς , a fisherman, θάλασσα , the sea.] A genus of Stern inæ , or subgenus of Royal Tern (Thala eus maximus). Sterna, containing those large terns whose black cap extends into a slight occipital crest, and whose feet are black. See Sterna and tern,