66 U.S. NATIONAL MUSEUM BULLETIN 239 



as being in Massachusetts State Cabinet 112 and BSNH 2388, but 

 both specimens lost; 1862, Otia Conch., p. 119; 1870, Invert. 

 Massachusetts, p. 216, fig. 507. 8 probable syntypes MCZ 216760 

 ex C. B. Adams coll. labeled "Massachusetts." 



debilis, Cyrena [Corbicula]: 1850, PBSNH, vol. 3, p. 293 (New 

 Holland? [Australia]), long. % , alt. %, lat. % in.; 1852, USEE, 

 vol. 12, p. 427, pi. 36, fig. 529,a-b (New Holland [Australia], Upper 

 Hunter River — this locality may be erroneous because of an ac- 

 cidental mixture of specimens); 1862, Otia Conch., pp. 86, 246. 



debilis, Mactra: 1850, PBSNH, vol. 3, p. 348 (Singapore), long. 

 1%, alt. 1, lat. y 2 in.; 1852, USEE, vol. 12, p. 394; 1856, ibid., 

 Addenda and Corrigenda, p. 508: "The specimen was accidently 

 crushed, and the figure necessarily omitted"; 1862, Otia Conch., 

 p. 98. 



debilis, Sigaretus: 1853, BJNH, vol. 6, p. 379, pi. 14, fig. 17 (Gulf 

 of California, La Paz [Lower California], T. P. Green), short 

 diam. not quite Y 2 , height % in. ; 1862, Otia Conch., p. 185. Measured 

 holotype MCZ 169117 ex NYSM 36, original no. A3078. 



debilis, Solercurtus: 1861, PBSNH, vol. 8, p. 26 (Port Lloyd 

 [Bonin Islands], and Loo Choo [Okinawa, Ryukyu Islands], Capt. 

 Rogers), long. 25, lat. 5, alt. 7 mm.; 1862, Otia Conch., p. 164. 

 NPEE. 



decolor, Columbella Plate 14, fig. 8 



1860, PBSNH, vol. 7, p. 336 (Loo Choo [Okinawa, Ryukyu Islands]), 

 axis 9, diam. 4 mm.; 1862, Otia Conch., p. 132. Measured holotype 

 USNM 24193, original no. 1132. NPEE. 



decolorata, Stomatella: 1848, PBSNH, vol. 3, p. 73 (Mangsi 

 Island [Strait of Balabac], Pickering), long. %, lat. %, alt. % in.; 

 1852, USEE, vol. 12, p. 210, pi. 15, fig. 250,a-b; 1862, Otia 

 Conch., p. 5. 



decora, Pupa [Vertigo]: 1847, PBSNH, vol. 2, p. 263, text fig. (Lake 

 Superior region, T. R. Dutton), long. Ko, lat. % m. ; 1851, in A. 

 Binney, Terr. Moll. U.S., vol. 2, p. 327, pi. 71, fig. 3; 1862, Otia 

 Conch., p. 202; 1870, Invert. Massachusetts, p. 435, fig. 695. 



decussata, Litiopa: 1848, PBSNH, vol. 3, p. 75 (floating bamboo, 

 lat. 37°40' N., long. 54°30' W., J. P. Couthouy), long. % , lat. % in.; 

 1852, USEE, vol. 12, p. 195, pi. 15, fig. 252,a; 1862, Otia Conch., 

 p. 52. 



decussata, Pedicularia Plate 36, fig. 1 



1855, PBSNH, vol. 5, p. 126 (off Georgia coast, 400 fathoms, Coast 

 Survey), length %, breadth % in.; 1862, Otia Conch., p. 215. 

 Measured holotype MCZ 169118 ex NYSM 54; original no. G 2618; 

 2 paratypes MCZ 169119 and paratype USNM 611269 from same 

 NYSM lot. 



