it6 Mollusca of the Gulf of Mexico 86 



Genus CYIVIATIUM Bolten 



olearium Linngeiis, Syst. Nat., ed. XII, p. 1216, {Trito7i)\ Reeve, 

 Conch. Icon., 2, f. 32, 1844: Tryon, Man., 3, p. 11, pi. 5, f. 

 27, '81; Dall, Bull. 37, U. S. N. M., p. 132, '89, (as /,«w- 

 piisia)\ Bart.sch, Bull. U.S. N. M., p. 94, 1915. 



Distribution. — Hatteras to Cartagena, Colombia, and the 

 Texas region of the Gulf of Mexico. Also Indian Ocean, 

 Port Alfred, South Africa. 



chlorostomiim Lamarck, An. sans Vert., 7, p. 185, 1822, (as Tri- 

 ton); Kiener, Icon. Coq. Viv., p, 19, pi. 12, f. 2; Tryon, 

 Man., 3, p. 13, pi. 7, f. 47, 48, 1881; Dall, Bull. 37, U. S. 

 N. M., p. 132, '89; Dall and Simpson, Bull. U. S. Fish 

 Com., I, p. 417, 1901,) 3.S Lanip2isia). 



Triton pidchellus C. B. Adams, Contr. Conch., p. 60, 1850. 



Distribution. — East Florida to Barbados and Gulf of Mexico 

 along the Mexican coast. 



graci'e Reeve, Conch. Icon., Tn'loji f. 58, 1845; Tryon, Man., 3, 

 pi. 12, f. 97, 1881; Dall, Bull. M. C. Z., 18, p. 227, pi. 29, f. 



2, '89; Bull. 37. U. S, N. M., 132, pi. 29, f. 2, '89, (as 

 Lamp-iisia) . 



Distribution. — Cape Catoche, Yucatan, 24 fms., U. S. Fish 

 Com. Also Colon and Barbados. Max. depth 100 fms. 



cynocephaium Lamarck, An. sans Vert., 7, p. 184, 1822, (as Tri- 

 ton)\ Reeve, Conch, Icon., 2, pi. 8, f. 26, 1844; Tryon, Man., 



3, p. 19, pi. II, f. 80. pi. 15, f. 152, '81; Dall, Bull. 37, U. 

 S N. M., p. 132, '89; Dall and Simpson, Bull. U. S. Fish 

 Com., I, p. 417, 1901, {q.s LaiJipusia). 



Distribution. — Florida Straits to Margarita Isl. Texas re- 

 gion of the Gulf. 



Genus NYCTILOCHUS Gistel 



femorale Linnaeus, Sy.st. Nat., ed. X, p. 749, 1758, {d.s Mnrex); 



