S. I. Smith — Crustaceans of the Atlantic Coast. 67 



Hippolyte Gaimardii Milne-Edwards. 



Hippolyte Gaimardii Milne-Edwards, Hist. nat. des Crust., ii, p. 378, 1831. 

 Hippolyte pandaliformis^e\\ History of British stalk -eyed Crustacea, p. 294 [1850?] 

 Hippolyte Belcheri Bell, in Belcher, Last of the Arctic Voyages in search of Sir 

 John Franklin, vol. ii, p. 402, pi. 34, fig. 1, 1855. 



Plate IX, figures 8 and 9. 



Boston Harbor, 3 fathoms, and other parts ol Massachusetts Bay 

 (Stimpson). Casco Bay !, among algae and eel-grass near low-water 

 mark, and also in 7 fathoms, mud and dead eel- grass, 1873. East- 

 port !, Maine, 1864, — one specimen only, Halifax!, Nova Scotia, 16 

 and 21 fathoms, stones, sand and red algse, and 18 fathoms, fine sand 

 and mud, 1877. Also off Halifax !, 52 fathoms, mud and fine sand, 

 and 57 fathoms, mud and pebbles, September, 1877, — one specimen 

 from 57 fathoms carrying eggs. Gulf of St. Lawi'ence !, " 50 fathoms, 

 stony and rocky," and " 56 fathoms, stones and coarse sand," 1872 

 (J. F. Whiteaves). Labi-ador !, " common on the whole coast" 

 (Packard). Grinnell Land, 79° 29' north latitude, (Miers). Bering 

 Straits and Arctic Ocean (Stimpson), — S. gihha Kroyei*. Greenland 

 (Kroyer, et al). Iceland (Milne-Edwards, G. O. Sars). Spitzbergen 

 (Kroyer, Miers). The whole Norwegian coast (Kroyer, et al.), the 

 Cattegat (Kroyer), to the southern Baltic, at Kiel (Mobius, Metzger). 

 Scotland ! (Norman). 



Of the twenty-five specimens which I have examined only five are 

 males, and none of these have the i-emarkable dorsal prominence of 

 the third segment of the abdomen characteristic of H. gihha Kroyer. 

 None of these males, however, are over 30°^™ long, and still in the 

 largest of them, there is a slight carination of the thii-d segment of 

 the abdomen as if presaging the conspicuous character of the typical 

 gihha., so that I have no reason to doubt the correctness of Goes' 

 conclusion that Kroyer's gihha was based on old males of H. Gai- 

 mardii. 



Milne-Edwards' " Troisieme anneau de 1' abdomen moins fortement 

 dente," which Stimpson (Annals Lyceum Nat. Hist. New York, x, 

 p. 126, 1871) seems to regard as throwing doubt on the identity of 

 Kroyer's Gaimardii with that of Milne -Ed wards, may have referred 

 to a young male like those just mentioned, although the fact that 

 Milne-Edwards is comparing his species with S. Sotcerhyi [H. 

 spinus), would not necessarily im2:)ly any considerable angulation of 

 the third segment of the abdomen. I think there is no reasonable 

 doubt of the identity of Milne-Edwards' species with that of Kroyer 

 and more modern authors. 



