ZOOLOGICAL TAXA OF WILLIAM HEALEY DALL 263 



posti, Oliia 1915, USNMB 90, pp. 19, 49, pi. 12, fig. 24 (Tampa silex 



beds. Ballast Point, Tampa Bay, Florida; USNM 165045). 

 postii, Pteropnrpura 1896, PUSNM, vol. 18, no. 1035, p. 44 



(Miocene, Ballast Point, Tampa, Florida; USNM 130349); 1900, 



TWFIS, vol. 3, pt. 5, p. 1199, pi. 43, fig. 7; 1915, USNMB 90, p. 



76, pi. 7, fig. 9. 

 postplanatus, Chrysodonius 1909, USGSPP 59, p. 43, pi. 7, fig. 5 



(Empire formation, Bogachiel River, Clallam County, Washing- 

 ton; USNM 107781). 

 potosiana, Streptostyla 1905, SMC, vol. 48, pt. 2, no. 1590, p. 190, 



pi. 44, fig. 4 (Alvarez Mountains, San Luis Potosi, Mexico'; 



USNM 110395). 

 potosiana, Xanthonyx 1905, SMC, vol. 48, pt. 2, no. 1590, p. 190, pi. 



44, figs. 1, 2, 7 (Alvarez Mountains, San Luis Potosi, Mexico; 



USNM 110396). 

 pourtalesianiitn^ Atnusium (Propeamusiutn) 1886, BMCZ, vol. 12, 



no. 6, p. 211, pi. 5, fig. 12 (BLAKE sta. 2, off Morro Light 



[Cuba] ; and others). 

 pourtalesii, Haliotis (Padollus?) 1881, BMCZ, vol. 9, no. 2, p. 79 



(Gulf Stream near Florida reefs); 1890, PUSNM, vol. 12, no. 773, 



p. 355, pi. 12, figs. 1, 3. 

 pourtalesii, Pleurotoma (Mangilia) 1881, BMCZ, vol. 9, no. 2, p. 60 



(Gulf Stream); 1886, BMCZ, vol. 12, no. 6, pi. 9, fig. 6. 

 praecisa, Venericardia 1903, TWFIS, vol. 3, pt. 6, p. 1427, pi. 56, 



figs. 7, 8 (Eocene, Cleveland County, Arkansas); 1905, Schuch- 



ert. Ball et al, USNMB 53, pt. 1, p. 689 (USNM 138638). 

 praecursor, Astralium 1903, TWFIS, vol. 3, pt. 6, p. 1610 [emenda- 

 tion for precursor] . 

 praecursor, Marginella 1903, TWFIS, vol. 3, pt. 6, p. 1606 



[emendation for precursor] . 

 pratoma Dall and Bartsch, Odostomia (Evalea) 1909, USNMB 68, 



p. 199, pi. 23, fig. 4 (USBF sta. 2902, off Santa Rosa Island 



[California] ; USNM 206913). 

 pratomus, ? Tachyrhynchus 1919, PUSNM, vol. 56, no. 2295, p. 347 



(USFC sta. 1152, Semidi Islands, Alasl^a; USNM 219369). 

 preblei, Lymnaea binneyi 1905, HAE, vol. 13, p. 70, pi. 1, figs. 1, 2 



(English River, Manitoba; Lake Knee, Keewatin, Canada). 

 precipitata, Rissoa 1889, BMCZ, vol. 18, pp. 25, 279, pi. 19, fig. 1 



(Yucatan Strait [Mexico]). 

 precursor, Astraea (Pachypoma) 1909, USGSPP 59, pp. 18, 93, pi. 



6, figs. 5, 6 (Miocene, Coos Bay, Oregon; USNM 153919). 

 precursor, Astralium (Lithopoma) 1892, TWFIS, vol. 3, pt. 2, p. 



384, pi. 18, fig. 8 (Pliocene, Caloosahatchie [River] and Shell 



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



