114 U.S. NATIONAL MUSEUM BULLETIN 239 



mustelina, Nassa Plate 16, fig. 2 



1860, PBSNH, vol. 7, p. 331 (Ousima [Amami-O-shima, Ryukyu 

 Islands], off the coast, in 2 fathoms, coarse clean sand, W. Stimp- 

 son), axis 12, diam. 8 mm.; 1862, Otia Conch., p. 127. Measured 

 holotype USNM 24200, original no. 1554. NPEE. 



mutabilis, Mytilus: 1861, PBSNH, vol. 8, p. 38 (Kagos[h]ima Bay 

 [Japan], W. Stimpson), long. 30, alt. 16, lat. 12 mm.; 1862, Otia 

 Conch., p. 177. Type lot, USNM 2065, not found. NPEE. See 

 note by Carpenter, 1864, Rep. British Assn. Adv. Sci. 1853, p. 587. 



mutans, Melania Plate 35, fig. 4 



1843, PBSNH, vol. 1, p. 159 (Cape Palmas, Liberia [ibid., p. 153], 

 Drs. Savage and Perkins), long. 1%, lat. % in.; 1862, Otia Conch., 

 p. 193: ... is Melania fuscata Gmelin which varies greatly in 

 its exterior sculpture." Measured holotype MCZ 169255 ex 

 NYSM 70, original no. A 3904. 



mutata, Helix: 1846, PBSNH, vol. 2, p. 167 (Rio [de] Janeiro 

 [Brazil], USEE), lat. % Q , alt. % in.; 1862, Otia Conch., p. 19. 

 Omitted from the report of USEE. 



nacca, Vertigo Plate 42, fig 2 



1862, PBSNH, vol. 8, p. 280 (Hawaii, W. Newcomb), axis #o, diam. 

 %2 in.; 1862, Otia Conch., p. 237. Lectotype, here selected, MCZ 

 169259 ex NYSM 213; original no. G 2691; 4 paratypes MCZ 169260 

 and paratype USNM 611212 from same NYSM lot. 



nana, Diloma: 1861, PBSNH, vol. 8, p. 18 (Loo Choo [Okinawa, 

 Ryukyu Islands], W. Stimpson), diam. 5 mm.; 1862, Otia Conch., 

 p. 156. NPEE. 



nana, Monilea Plate 14, fig. 3 



1861, PBSNH, vol. 8, p. 16 (China Coral Seas, W. Stimpson), 

 diam. 2+ mm.; 1862, Otia Conch., p. 155. Lectotype, here selected, 

 USNM 384; 2 paratypes USNM 24227; paratypes in NYSM, origi- 

 nal no. G 2448, listed as lost in 1875, Ann. Rep. NYSM, p. 13, 

 NPEE. 



nana, Perna: 1850, PBSNH, vol. 3, p. 312 (Feejee [Fiji] Islands, 

 under stones, Drayton), long. %, alt. %, lat. ){ in.; 1852, USEE, 

 vol. 12, p. 445, pi. 40; fig. 556,a-b; 1862, Otia Conch., p. 92. Fig- 

 ured holotype USNM 5981; paratype MCZ 216769 ex Smithsonian 

 Inst, (printed label). 



nasuta, Mactra: 1851, PBSNH, vol. 4, p. 88 (Mazatlan [Mexico], 

 T. P. Green; San Pedro [California], W. Rich), long. 3tf, lat. 1, alt. 

 2#in; 1854, BJNH, vol. 6, p. 393: " . . . is Mactra falcata Gould"; 



1862, Otia Conch., p. 211. 2 possible syntypes USNM 2296 ex 

 W. Rich. 



