142 U.S. NATIONAL MUSEUM BULLETIN 239 



rotellinus, Trochus (Monodonta) [Camitia]: 1849, PBSNH, 

 vol. 3, p. 108 (Mangsi Island [Strait of Balabac], Pickering), diam. 

 %, alt. % in.; 1852, USEE, vol. 12, p. 191, pi. 13, fig. 222,a-b; 1862, 

 Otia Conch., pp. 59, 244. Figured holotype USNM 5622; paratype 

 USNM 612324. 



rotula, Helix: 1848, PBSNH, vol. 3, p. 38 (Tennessee, J. Bartlett), 

 diam. % in.; not Lowe 1833, changed to Helix capsella Gould in 

 A. Binney, 1851, Terr. Moll. U.S., vol. 2, p. 239, pi. 29a, fig. 1; 

 1862, Otia Conch., p. 203. 



rotundata, Succinea [Helisaga]: 1846, PBSNH, vol. 2, p. 182 

 (mountains of Oahu, Sandwich [Hawaiian] Islands, Pickering), 

 long. Ko, lat. % , alt. % Q in.; 1852 USEE, vol. 12, p. 15, pi. 2, fig. 

 14,a-c; 1856, ibid., Addenda and Corrigenda, p. 500; 1862, Otia 

 Conch., pp. 27, 244. Figured holotype USNM 5414 reduced to 

 fragments; paratype USNM 208666 also damaged. 



rubens, Achatinella Plate 42, fig. 6 



1845, PBSNH, vol. 2, p. 27 (Sandwich [Hawaiian] Islands), long. 

 %, lat. % in.; 1862, Otia Conch., p. 195. Lectotype, here selected, 

 MCZ 169350 ex NYSM— , original no. A 1471; 20 paratypes MCZ 

 169351 and 2 paratypes USNM 611220 from same NYSM lot. 



rubicunda, Clathurella Plate 12, fig. 19 



1860, PBSNH, vol. 7, p. 338 (Loo Choo [Okinawa, Ryukyu Islands], 

 W. Stimpson), axis 5, diam. 2 mm.; 1862, Otia Conch., p. 135. 

 Measured holotype USNM 24163, original no. 1038. NPEE. 



rubicunda, Tellina Plate 24, fig. 4 



1845, PBSNH, vol. 2, p. 37 (Liberia, C. J. Bates), long. 1, alt. %, 

 lat. % in.; 1862, Otia Conch., p. 196. Measured holotype MCZ 

 169346 ex NYSM 349, original no. G 2087. 



rubicundulus, Bulimus: 1843, PBSNH, vol. 1, p. 158 (Cape 

 Palmas, Liberia [ibid., p. 153], Africa, Drs. Savage and Perkins), 

 long. %, lat. Ko in.; 1850, PBSNH, vol. 3, p. 197: ". . . is a variety 

 of Bulimus interstinctus Gould"; 1862, Otia Conch., p. 192. 



rubida, Assiminea Plate 12, fig. 6 



1859, PBSNH, vol. 7, p. 42 (Loo Choo [Okinawa, Ryukyu Islands], 

 W. Stimpson), alt. % , diam. % in.; 1862, Otia Conch., p. 107. 

 Measured holotype USNM 24235, original no. 2102. NPEE. 



rubida, Diphyllidia: 1852, USEE, vol. 12, p. 307, pi. 26, fig. 406,a 

 (a coral reef, Honolulu, Oahu [Hawaiian Islands], Pickering), long. 

 1% in.; 1862, Otia Conch., p. 230. 



rubidus, Ziziphinus: 1861, PBSNH, vol. 8, p. 18 (hab.?), axis 15, 

 diam. 12 mm.; 1862, Otia Conch., p. 157. NPEE. 



rubiginosa, Bulla: 1852, USEE, vol. 12, p. 221, pi. 15, fig. 226 

 (near the mouth of the harbor of Rio [de] Janeiro [Brazil], J. P. 

 Couthouy), length % in. It is claimed that this species was de- 



