294 U.S. NATIONAL MUSEUM BULLETIN 287 



serratissimus Dall, Bartsch and Rehder, Spondylus 1938, BBPBM 



153, p. 97, pi. 25, figs. 9-12 (off Honolulu, Oahu [Hawaiian 



Islands]; USNM 337513). 

 Serridens 1899, PUSNM, vol. 21, no. 1177, p. 876. Type-species by 



original designation: Pristipliora oblo7iga Csirpenter. 

 setifera, Limatula 1886, BMCZ, vol. 12, no. 6, p. 225. New name for 



Limatula ovata Dall, 1881, not Wood 7ior Jeffreys. 1890, PUSNM, 



vol. 12, no. 773, p. 250, pi. 14, fig. 10. 

 setulosum 'Carpenter' Dall, Hemiarthrum 1876, USNMB 3, p. 44 



(Kerguelen Island; USNM 11903). 

 severina, Drillia 1915, USNMB 90, pp. 19, 40, pi. 5, fig. 4 (Tampa 



silex beds [Florida] ; USNM 166096). 

 severinus, Aulacofusus (Limatofusus) 1919, PUSNM, vol. 56, no. 



2295, p. 320 (USFC sta. 3669, Monterey Bay, California; USNM 



225225); 1925, PUSNM, vol. 66, art. 17, no. 2554, p. 14, pi. 1, fig. 



11. 

 sexangula, Miirex 1915, USNMB 90, pp. 20, 74, pi. 13, fig. 11 



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



165086). 

 seymourensis Dall and Ochsner, Area (Barbatia) 1928, PCAS, ser. 



4, vol. 17, no. 4, p. 117, pi. 2, fig. 18; pi. 4, fig. 5 (Pliocene ?, 



Seymour Island, Galapagos group; CAS 2943). 

 seymourensis Dall and Ochsner, Chione 1928, PCAS, ser. 4, vol. 



17, no. 4, p. 123, pi. 3, figs. 1, 5 (Pliocene ?, Seymour Island, 



Galapagos group; CAS 2970). 

 seymourensis Dall and Ochsner, Pecten 1928, PCAS, ser. 4, vol. 17, 



no. 4, p. 119, pi. 2, fig. 22 (Pliocene ?, Seymour Island, Galapagos 



group; CAS 2948). 

 shaleri, JSucula 1894, AJS, ser. 3, vol. 48, no. 286, pp. 297, 298 



(Miocene, Chilmark; Gay Head, Martha's Vineyard [Massachu- 

 setts]); 1900, TWFIS, vol. 3, pt. 5, p. 1196, pi. 40, fig. 6; 1905, 



Schuchert, Dall et al, USNMB 53, pt. 1, p. 439 (USNM 107330). 

 shannonicus, Margarites (Pupillaria) 1919, PUSNM, vol. 56, no. 



2295, p. 364 (Shannon Fiord, East Greenland; USNM 219265). 

 shepardi, Ancillaria 1890, TWFIS, vol. 3, pt. 1, p. 46, pi. 4, fig. 4 



(Ballast Point and Hillsboro Bay, Tampa Bay, Florida); 1905, 



Schuchert, Dall et al, USNMB 53, pt. 1, p. 45 (Oligocene, 



Hillsboro Bay, Florida; USNM 112093); [as AncUla shepardi] 



1915, USNMB 90, p. 51, pi. 7, fig. 1. 

 shepardi, Cardita 1915, USNMB 90, pp. 21, 133, pi. 21, figs. 10, 12 



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



165193). 

 shepardi, Cytherea (Artena) 1903, TWFIS, vol. 3, pt. 6, p. 1278, pi. 



55, fig. 16 (Oligocene, Hillsboro Bay and Ballast Point, near 



Tampa, Florida); 1905, Schuchert, Dall et al, USNMB 53, pt. 1, 



