258 U.S. NATIONAL MUSEUM BULLETIN 287 



planetica, Cuspidaria (Cardiomya) 1908, BMCZ, vol. 43, no. 6, pp. 



222, 433 (ALBATROSS sta.' 2925, off San Diego, California; 



USNM 110720). 

 planeticum, Buccinnm 1919, PUSNM, vol. 56, no. 2295, p. 326 



(USFC sta. 3305, SW of Hagmeister Island, Bering Sea; USNM 



223098); 1925, PUSNM, vol. 66, art. 17, no. 2554, p. 8, pi. 5, fig. 



1. 

 planeiicus. Scaphander (Sabatina) 1908, BMCZ, vol. 43, no. 6, p. 



241 (ALBATROSS sta. 3684, 0° 50' N, 137° 54' W, mid-Pacific; 



USNM 110748). 

 planorbis, Lippistes? 1927, PUSNM, vol. 70, art. 18, no. 2667, pp. 



115, 131 (off Fernandina [Florida] ; USNM 108091). 

 planulata, Lima tenera 1886, BMCZ, vol. 12, no. 6, p. 224 



(Barbados). 

 planidatum, Fulgiir pyrum 1890, TWFIS, vol. 3, pt. 1, p. 114 (Shell 



Creek; Caloosahatchie marls [Florida]); 1905, Schuchert, Dall et 



al, USNMB 53, pt. 1, p. 276 (near Fort Thompson, Caloosahat- 

 chie River, Florida; USNM 112028). 

 platensis, Diplodonta 1899, JC, vol. 9, no. 8, pp. 245, 246 (off Rio de 



la Plata, Argentina). 

 platensis, Macoma (Psammacoma) 1922, N, vol. 36, no. 2, p. 59 



(Mar de la Plata, Argentina; USNM 333375). 

 platessa, Leda 1890, PUSNM, vol. 12, no. 773, p. 256 (USFC sta. 



2762, E from Rio Janeiro [Brazil]). 

 platinum, Calliostoma 1890, PUSNM, vol. 12, no. 773, p. 343, pi. 7, 



fig. 2 (USFC sta. 2839, near Santa Barbara Islands, California). 

 Platydonax 1900, TWFIS, vol. 3, pt. 5, p. 963. Type-species by 



original designation: Douax fincliu Sowerby. 

 platynema, Cerithium 1892, TWFIS, vol. 3, pt. 2, p. 281, pi. 14, fig. 



11 (Eocene (or Miocene), Jacksonboro, Scriven County, Geor- 

 gia); 1905, Schuchert, Dall et al, USNMB 53, pt. 1, p. 140 



(USNM 113357). 

 platyura. Area limula 1898, TWFIS, vol. 3, pt. 4, p. 632 (Pliocene, 



Caloosahatchie [River] and Alligator Creek, Florida); 1905, 



Schuchert, Dall et al, USNMB 53, pt. 1, p. 56 (Alligator Creek, 



Caloosahatchie River, Florida; USNM 153878). 

 Plectaria 1924, PBSW, vol. 37, p. 87. Type-species by original 



designation: Astyris (Plectaria) crumena Dall. 

 plectopygia, Bornia 1900, TWFIS, vol. 3, pt. 5, p. 1149; 1903, 



TWFIS, vol. 3, pt. 6, pi. 49, fig. 9 (Eocene, Claiborne, Alabama); 



1905, Schuchert, Dall et al, USNMB 53, pt. 1, p. 103 (USNM 



108493). 

 plectrum, Cerithium 1915, USNMB 90, pp. 20, 90, pi. 9, fig. 3 



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



166105). 



