S. I. Smith — Crustaceans of the Atlantic Coast. 41 



In the vicinity of Noank, Connecticut, it was occasionally found 

 dead upon the shores and was several times obtained from " lobster- 

 traps." 



The largest specimens I have seen are two males, of almost exactly 

 the same size, one from Casco Bay, the other from near Noank, Con- 

 necticut. The carapax of the specimen from Casco Bay is 91 "6""" 

 long and 144-5""° broad. 



ChionCBCeteS Opilio Kroyer. 



Cancer jihalangium 0. Fabricius, Fauna Groenlandica, p. 234, 1780 (not of J. C. 

 Fabricius, 1775). 



^'■Cancer opilio 0. Fabricius, Det Kongelige Danske Vidensk. Selskabs Skr., nye 

 Samling., iii, p. 180" (teste Kroyer). 



Ghionoecetes opilio Kroyer, G-ronlands Amflpoder, Det Kongel. Danske Vidensk. 

 Selskabs naturvidensk. og mathem. Afhandlinger, vii, p. 313(85), 1838; Con- 

 spectus Crustaceorum Groenlandias, Naturhistorisk Tidsskrift, ii, p. 249, 1838 ; 

 in Gaimard, Voyages en Scandinavie, en Laponie, au Spitzberg et aux Feroe, 

 Crust, pi. 1, 1849.— Packard, Memoirs Boston Soc. Nat. Hist., i, p. 302, 1867.— 

 Whiteaves, Report on a second deep-sea dredging expedition to the Gulf of St. 

 Lawrence [in 1872], p. 15, 1873. 



Peloplastus Pallasii Gerstsecker, Carcinologische Beitrage, Archiv fiir Natur- 

 geschichte, xxii, 1856, p. 105, pi. 1, fig. 1. 



Ghionoecetes Behringianus Stimpson, Proceedings Boston Soc. Nat. Hist., vi, p. 84, 

 1857; Journal Boston Soc. Nat. Hist., vi, p. 448 (8), 1857; Proceedings Acad. 

 Nat. Sci. Philadelphia, 1857, p. 217 (23), 1858. 



Chionocoetes phalangium Liitken, list of the Crustacea of Greenland, in Manual of 

 Instructions for the [British] Arctic Expedition, 1875, p. 146. 



From fish-stomachs, off Casco Bay ! (C. B. Fuller, Portland Soc. 

 Nat. Hist.), h. Two localities off the coast of Nova Scotia!, 1877 : 

 two specimens {e,f) off (^ape Sable, 88 fathoms, very fine sand ; and 

 four small specimens about twenty-six miles south of Chebucto Head, 

 101 fathoms, fine sand. A large male specimen {d) in the collection 

 of the Boston Society of Natural History is without indication of 

 locality, but probably came from one of the fishing banks. Gulf of 

 St. Lawrence (Whiteaves). Straits of Belle Isle and Chateau Bay!, 

 coast of Labrador (A. S. Packard, Jr.), «, b. Greenland (O. Fabri- 

 cius, Kroyer, Norman). Siberia (Gerstaecker). Arctic Ocean! 

 (Capt. Rodgers, North Pacific Expl. Expd.), i. Bering Straits ! 

 (North Pacific Expl. Expd.), c, y. 



A careful comparison of three of the original specimens of C. Behrin- 

 gianus with specimens from our North Atlantic coast, and with 

 Kroyer's figure and description, convinces me that Stimpson's species 

 is perfectly identical with the C. opilio of Greenland. The differ- 



Trans. Conn. Acad., Vol. V. 6 January, 1879. 



