44 



MOLLUSCA OP THE GULF OF MEXICO 



14 



Genus CUViERIWA Boas 



columnella Rang, Ann. des Sci. Nat., ser. i, v. 12, p. 323, 1827, 

 Atlas 4°, pi. 45 B, f. 1-8. (as Cuvieria); Pelseneer, Challen- 

 ger Pteropoda,Zool.,23,art. i, p. 67, 1888; Dall, Bull. 37, U. 

 S. N. Mus., p. 82, pi. 66, f. 117, '89; Tr. Wagner Inst. 

 Sci., 3, pt. 2, p. 431, 1892; Peck, Proc. U. S. N. Mus., 16, 

 p. 462, pi. 55, f. 16, 1893; Dall, Proc. U. S. N. M., 37, p- 

 198, 1910; Johnson, Occ. Pap. Bost. Soc, 7, p. 159, 1915. 



Triptera columnella Verrill, Trans. Conn. Acad., 5, p. 557, 

 1882; 6, p. 214, 1884. 



Distribution. — West Atlantic, Lat. 43° N.— 40° S. East 

 Pacific, I^at. 23° N.— 42° S. Gulf of Mexico, West Florida 

 and Texas, recent. Lower Miocene Chipola bed at Alum 

 Bluff, Calhoun Co. Florida. 



Note. — The specific name is often, but erroneousl}^ written 

 columella. The correct form is columiiella since Rang prints 

 it thus twice in the original description. The generic name 

 Cuvieria is preoccupied. 



Genus EMBOLUS Jeffreys 



inflatus d'Orbigny, Voy. Ame'r. Me'r., p. 174, pi. 12, f. 16-19, 

 id>2,6, {2iS Atlanta); 1)2^, Bull. 37, U. S. N. Mus., p. 80, 

 1889; Proc. U.S. N. Mus., 37, p. 199, 1910; Johnson, Occ. 

 Pap. Bost. Soc, 7, p. 155, 1915, {q-S Limacina). 



Spirialis rostralis Verrill, Trans, Conn. Acad., 6, p. 431, 1885. 



Distribution.— West Atlantic, Lat. 42° N. — 40° S. East 

 Pacific. Lat. 42° N.— 40° S. Gulf of Mexico, West Florida. 

 Pelagic, Pleistocene to Recent. 



Genus PERACLE Forbes 



reticulata d'Orbigny, Voy. Ame'r, Me'r., p. 178, pi. 12, f. 32- 

 35. 39, 1836, {2iS Atlanta)', Dall, Bull. 37, U. S. N. Mus., 

 p. 80, 1889; Proc. U. S. N. Mus., 37, p. 199, 1910. 



