128 U.S. NATIONAL MUSEUM BULLETIN 23 9 



pintado, Margarita: 1861, PBSNH, vol. 8, p. 16 (Simon's Bay, 

 Cape of Good Hope, 12 fathoms, sandy, W. Stimpson), axis 4, 

 diam. 5 mm.; 1862, Otia Conch., p. 154. Holotype USNM 213, 

 figured by Bartsch, 1915, USNM Bull. 91, p. 160, pi. 28, figs. 10-12. 

 NPEE. 



piperata, Patella: 1846, PBSNH, vol. 2, p. 150 (Cape de Verde 

 Islands and Madeira), long. \}{, lat. % , alt. %. in.; 1852, USEE, 

 vol. 12, p. 338, pi. 28, fig. 439,a-b; 1862, Otia Conch., pp. 8, 242: 

 ". . . seems to be Patella rustica Linn." Figured holotype 

 USNM 5829. 



pisolina, Nanina: 1859, PBSNH, vol. 6, p. 423 (Cape of Good Hope?), 

 diam. %, axis % in.; 1862, Otia Conch., p. 102. NPEE. 



placida, Cleodora [(Creseis)]: 1852, USEE, vol. 12, p. 490, pi. 51, 

 fig. 606, a (obtained in the equatorial Atlantic and figured by Mr. 

 Dana); long. % in.; 1862, Otia Conch., p. 235. 



placidum, Cerithium Plate 13, fig. 6 



1861, PBSNH, vol. 7, p. 386 (China Seas, W. Stimpson), axis 8, 

 diam. 2 mm.; 1862, Otia Conch., p. 141. Lectotype, here selected, 

 USNM 24137, original no. 443, figured by Yen, 1944, Proc. Cali- 

 fornia Acad. Sci., ser. 4, vol. 23, p. 569, pi. 50, figs. 3, 4. NPEE. 



planata, Odostomia Plate 9, fig. 2 



1861, PBSNH, vol. 7, p. 404 (Hong Kong [China], W. Stimpson), 

 axis 6.5, diam. 2 mm.; 1862, Otia Conch., p. 148. Measured holo- 

 type USNM 24238, original no. 2098. NPEE. 



platessa, Chiton [Lepidopleurus]: 1846, PBSNH, vol. 2, p. 140 

 (New South Wales [Australia], long. %, lat. % in.; 1852, USEE, 

 vol. 12, p. 320, pi. 28, fig. 431,a; 1862, Otia Conch., pp. 4, 242. 

 An imperfect specimen USNM 19292 with label "Identified by 

 diagnosis. Preserve as type unless another found" (P.P. Carpenter). 



plebecula, Nassa Plate 16, fig. 6 



1860, PBSNH, vol. 7, p. 332 (Ousima [Amami-O-shima, Ryukyu 

 Islands], W. Stimpson), axis 15, diam. 7 mm.; 1862, Otia Conch., 

 p. 128. Lectotype, here selected, USNM 24168, original no. 1548; 

 8 paratypes MCZ ex NYSM 14, original no. A 4694. NPEE. 



plena, Littorina: 1849, PBSNH, vol. 3, p. 84 (Bay of San Francisco, 

 California), long. }{, lat. % in.; 1852, USEE, vol. 12, p. 201, pi. 14, 

 fig. 236,a-b; 1862, Otia Conch., p. 53. 3 syntypes USNM 5635, 

 either of the two larger ones could be the one figured; 2 metatypes 

 MCZ 169298 ex NYSM—, original no. G 2568, labeled "San Fran- 

 cisco, California, W. Newcomb." 



plicatella, Nassa: 1862, PBSNH, vol. 8, p. 280 (British Burmah 

 [Burma], J. Benjamin), axis 15, diam. 17 mm.; 1862, Otia Conch., 

 p. 237. 



