36 U.S. NATIONAL MUSEUM BULLETIN 287 



USNM 196280); 1909, Dall and Bartsch, USNMB 68, p. 154, pi. 



16, fig. 2. 

 astrophorea, Coelocentrum 1897, N, vol. 11, no. 6, p. 62 (Encarna- 



cion, Hidalgo, Mexico). 

 atacla, TurrUeUa 1915, USNMB 90, pp. 20, 100, pi. 13, fig. 5; pi. 



14, fig. 5; new name for Tuvritella gatunensis Dall, 1892, }iot 



Conrad; (Tampa silex beds, Ballast Point, Tampa Bay, Florida; 



USNM 165123). 

 Aiactodea 1895, PMSL, vol. 1, no. 5, p. 213; 1898, TWFIS, vol. 3, 



pt. 4, p. 911. Type-species by original designation: Papliia 



g la brat a Lamarck. 

 atahualpa, Cylichnella (Cylichnium) 1908, BMCZ, vol. 43, no. 6, 



pp. 212, 243, pi. 11, fig. 2 (ALBATROSS sta. 3354; Gulf of 



Panama; USNM 123081). 

 Ataxellus 1912, SMC, vol. 59, pt. 14, no. 2092, p. 7. Type-species by 



original designation: Bulinius spiculatus pectutatus Dall. 

 aterrima, Modiola 1871, AJC, vol. 7, pt. 2, p. 154 (Bay of Yeddo, 



Japan). 

 athymorhyssa, Rissoa 1892, TWFIS, vol. 3, pt. 2, p. 340, pi. 20, fig. 



13b (Pliocene, Shell Creek, Florida); 1905, Schuchert, Dall et al, 



USNMB 53, pt. 1, p. 578 (USNM 113570). 

 atkaensis, Limnaea ovata 1884, PUSNM, vol. 7, no. 442, p. 343 



(Aleutians); 1905, HAE, vol. 13, p. 66, pi. 2, figs. 7, 9. 

 atkana, Litorina sitkana 1886, PUSNM, vol. 9, no. 562, p. 211 



(Bering, Atka and Kyska Islands); 1902, PUSNM, vol. 24, no. 



1264, p. 551, pi. 39, fig. 11. 

 ntlantica, Philobrya 1896, PUSNM, vol. 18, no. 1034, p. 16 (USFC 



sta. 2770, off Spiring Bay, Argentine coast; USNM 97057); 1902, 



PUSNM, vol. 24, 1264, p. 507, pi. 32, figs. 4, 5. 

 AtlantoUmax 1916, PANSP, vol. 68, p. 376. Type-species by 



original designation: OncJiidiopsis (AtlantoUmax) ]ia)uiai Dall. 

 atomaria. Trivia 1902, N, vol. 16, no. 4, p. 43 (Panama Bay); 1908, 



BMCZ, vol. 43, no. 6, p. 323, pi. 12, figs. 8, 10, 11 (USNM 



109206). 

 atossa, Odostomia (Evalea) 1908, PUSNM, vol. 34, no. 1610, p. 253 



(San Pedro, California; USNM 110637); 1909, Dall and Bartsch, 



USNMB 68, p. 203, pi. 26, fig. 8. 

 alossa, Telina (Angiilus) 1915, USNMB 90, pp. 22, 153, pi. 4, fig. 



11 (Tampa silex beds. Ballast Point, Tampa Bay, Florida; USNM 



166118). 

 atossa, Tindaria 1908, BMCZ, vol. 43, no. 6, pp. 220, 388, pi. 15, 



figs. 3, 4 (ALBATROSS sta. 3392, Gulf of Panama; USNM 



122920). 

 Atrimitra 1918, PBSW, vol. 31, p. 138. Type-species by original 



designation: Mitra idae Melvill. 



