258 BULLiETIN 129^ UNITED STATES NATIONAL MUSEUM 



Measurements. — Male (10229), extreme length of carapace 72.4, 

 width 54 mm. Largest male examined (3319), length 94, width 72 

 mm. Male, Iceland, length 110, width 86 mm. (Hansen). 



Range.— West coast of Greenland from lat. 69° 15' to 64° 11' 

 N. (Hansen) ; from Labrador at Hebron, about lat. 58° 20' N., south- 

 ward to Rhode Island. East coast of Greenland (Dons); Iceland; 

 Northern Europe; Arctic Ocean from Spitzbergen eastward to about 

 60° E., in Kara Sea. ? Atka, Aleutian Islands (Birula, 1910). 



Shallow water to 500 meters (273 fathoms), according to Dons. 



Material examined. — See table, pages 255-257. 



HYAS COARCTATUS Leach 

 HYAS COARCTATUS ALUTACEUS Brandt 

 HYAS COARCTATUS URSINUS Rathbun 



TOAD CRAB 

 Plates 94-97 



Hyas coardatus Leach, Trans. Linn. Soc. London, vol. 11, 1815, p. 329 

 (type-localities, in mari Britannico; apud Frith of Forth, Plymouth 

 Soujid et Salcombe; supposed types in Brit. Mus., but label incomplete'"); 

 Malac. Podoph. Brit., 1816, pi. 21B.— Smith, Kept. U. S. Fish Commr., 

 vol. 1, 1871-72 (1873), p. 548 [254].— Rathbun, Proc. U. S. Nat. Mus., 

 vol. 16, 1893, p. 69, and synonymy; in Grenfell, Labrador, 1909, p. 481; 

 Rept. Canad. Arc. Exped., 1913-18, vol. 7, pt. A, 1919, p. 9A.— Birula, 

 Annuaire Mus. Zool. Acad. Imp. Sci. St. Petersbourg, vol. 11, 1906 (1907), 

 p. 8. — Hansen, Danish Ingolf-Exped., vol. 3, pt. 2, 1908, p. 15. — Dons, 

 Troms0 Mus. Aarshefter^34, 1912-13, p. 158, pi. 1, figs. 14-19; pi. 2, figs. 

 9-10; pi. 3, figs. 3-8, text-figs. A2, 4, 6 and 8, B2 and 2a, and synonymy 

 except H. lyratus; 37, 1914 (1915), p. 88. 



Lissa fissirostra (by error, fssirostra) Say, Journ. Acad. Nat. Sci. Phila- 

 delphia, vol. 1, 1817, p. 79 (type-locahty, coast of Long Island; type not 

 extant) . 



Hyas coarctata Milne Edwards, Hist. Nat. Crust., vol. 1, 1834, p. 312; 

 R. Anim. de Cuvier, disciples ed., p. 90, pi. 32, fig. 3.— Birula, Annuaire 

 Mus. Zool. Acad. Imp. Sci. St. Petersbourg, 1897, p. 445 [41]. 



Hyas serratus Hailstone, Mag. Nat. Hist., vol. 8, 1835, p. 262 (type- 

 locality, near Hastings, England, in trawl net; type not extant). 



Hyas bufonius White, List Crust. Brit. Mus., 1847, p. 6 (locality not given; 

 type in Brit. Mus.). 



Hyas coardatus, var. alutacea Brandt, in Middendorfif's Reise in den 

 Xussersten Norden und Osten Sibiriens, vol. 2, Zool., pt. 1, 1851, p. 79 

 (type-locality. Bear Island, near the Schantar Islands, Okhotsk Sea, 

 Siberia; type in Petrograd Mus.). 



M Dr. Caiman, of the British Museum, under date of January 23, 1923, writes: "There are in our collec- 

 tion a number of old dry specimens of Hyas coardatus which according to the 'List of British Animals,' 

 part 4, Crustacea, 1850, came 'from the collection of Dr. Leach,' but curiously enough their origin is not 

 stated in the museum register and I suspect some confusion has taken place in the labels of the specimens 

 themselves. The result is that although it is probable that some of them might be ranked as the syntypes 

 of the species, I am not confident that I can tell which they are I do not think it likely that types exist 

 in any other museum." 



