264 U.S. NATIONAL MUSEUM BULLETIN 287 



71 (Caloosahatchie River, near Fort Thompson, Florida; USNM 

 1 12993) [see praecursor] . 



precursor, Cardium (Trachycardium) 1900, TWFIS, vol. 3, pt. 5, p. 

 1086; 1903, TWFIS, vol. 3, pt. 6, pi. 48, fig. 10 (Oligocene, 

 Vicksburg, Mississippi); 1905, Schuchert, Dall et al, USNMB 53, 

 pt. 1, p. 131 (USNM 136748). 



precursor, Crepidula 1904, HAE, vol. 4, p. 110, pi. 9, fig. 3 (Eocene, 

 W headland of Chichagof Cove, Alaska); 1905, Schuchert, Dall et 

 al, USNMB 53, pt. 1, p. 178 (USNM 164900). 



precursor. Lacuna 1915, USNMB 90, pp. 20, 94, pi. 12, fig. 5 

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

 165124). 



precursor, Marginella 1890, TWFIS, vol. 3, pt. 1, p. 47, pi. 5, fig. 4 

 (Caloosahatchie beds [Florida]); 1905, Schuchert, Dall et al, 

 USNMB 53, pt. 1, p. 392 (Pliocene, near Fort Thompson, 

 Caloosahatchie River, Florida; USNM 97360) i&ee'praecursor}. 



precursor, Pecten (Amusium) 1898, TWFIS, vol. 3, pt. 4, p. 755 

 (Oligocene, Alum Bluff and Chipola River [Florida]); 1905, 

 Schuchert, Dall et al, USNMB 53, pt. 1, p. 490 (near Bailey's 

 Ferry, Calhoun County, Florida; USNM 114773). 



precursor, Spisula (Hemimactra) 1909, USGSPP 59, pp. 17, 18, 

 131, pi. 14, fig. 10 (Miocene, Empire formation, Coos Bay, 

 Oregon; USNM 153928). 



precursor, Thais (ISucella) 1909, USGSPP 59, pp. 20, 51, pi. 4, fig. 4 

 (Pleistocene, Coos Bay, Oregon; USNM 153995, 153924). 



precursor, Ultimus in Guppy and Dall, 1896, PUSNM, vol. 19, no. 

 1110, p. 318, pi. 29, figs. 2, 3 (Pliocene, Limon, Costa Rica; 

 USNM 107456). 



precursor, VolutilUhes 1890, TWFIS, vol. 3, pt. 1, p. 84, pi. 6, fig. 1 

 (Eocene, half a mile E from Wheelock, Texas); 1905, Schuchert, 

 Dall et al, USNMB 53, pt. 1, p. 697 (USNM 111865). 



premorra, Drillia 1889, BMCZ, vol. 18, pp. 9, 93, pi. 11, fig. 18 

 (BLAKE sta. 100, Gulf of Mexico, off Morro Light [Cuba]). 



pressa, Tellina (Angulus) 1900, TWFIS, vol. 3, pt. 5, p. 1026, pi. 47, 

 fig. 5 (Oligocene, Bowden, Jamaica; Chipola River, Calhoun 

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

 p. 645 (Chipola River, Calhoun County, Florida; USNM 114664). 



prestoni, Cardita (Carditamera) 1903, TWFIS, vol. 3, pt. 6, p. 1415, 

 pi. 53, fig. 14 (Miocene, Preston's sink, near Waldo, Alachua 

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

 p. 127 (USNM 109281). 



prihiloffensis, Chrysodomus 1919, J WAS, vol. 9, no. 1, p. 2, n.n.; 

 1919, PUSNM, vol. 56, no. 2295, p. 323 (off Pribilof Islands, 

 Bering Sea; USNM 225603); 1925, PUSNM, vol. 66, art. 17, no. 

 2554, p. 10, pi. 7, fig. 4. 



