15:6 MOLIvUSCA OF THE GULF OF MEXICO 86 



Genus CYMATjyP.I Bolten 



oiearium Linnasus, Syst. Nat., ed. XII, p. 1216, {Triton); Reeve, 

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

 27, '81; Ball, Bull. 37, U. S. N. M., p. 132, '89, {as Lam - 

 piisia); Bartsch, 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. 



chlorostomum Lamarck, An. sans Vert., 7, p. 185, 1822, (as Tfi- 

 to7i); 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,) 2A Lanipusia). 



Triton p^dchellus 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., Triton 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 

 Lainpusid) . 



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

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



Cynocephalum Lam^arck, 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 Lamp7isia). 



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

 gion of the Gulf. 



Genus NYCTSLOCHUS Gistel 



femorale Linnseus, Syst. Nat., ed. X, p. 749, 1758, (as Murex); 



