36 U.S. NATIONAL MUSEUM BULLETIN 239 



achates, Chiton (Acanthochaetes) : 1859, PBSNH, vol. 7, p. 165 

 (Kikaia [Kikaigashima, Ryukyu Islands]; Hakodadi [Hakodate] 

 Bay [Japan], W. Stimpson), long. 30, lat. 20 mm.; 1862, Otia 

 Conch , p. 118. 3 Syntypes MCZ 169031 ex NYSM 168, original 

 no. A 3165. NPEE. 



Pilsbry, 1893, Manual of Conchology, ser. 1, vol. 15, p. 18, says, 

 "One of the original specimens of this species is before me, but 

 it is so erroded that the characters are quite obscured." 



achates, Chlorostoma Plate 10, fig. 4 



1861, PBSNH, vol. 8, p. 20 (Simoda [Shimoda, Japan], W. Stimp- 

 son), diam. 1.75, axis 1.50 in.; 1862, Otia Conch., p. 158. Lecto- 

 type, here selected, MCZ 169032 ex NYSM 132, original no. G 2416; 

 paratype MCZ 88088 ex BSNH 4037 from W. Stimpson; 4 speci- 

 mens Redpath Mus. 52, labeled "Type" but from Hakodadi 

 and Ousima. NPEE. 



achates, Odostomia: 1853, BJNH, vol. 6, p. 385, pi. 14, fig. 13 

 (Mazatlan [Mexico], E. Jewett), length K, breadth % in.; 1862, 

 Otia Conch., p. 186. Holotype MCZ 169030 ex NYSM 43, origi- 

 nal nos. 288 and A 3111, refigured by Dall and Bartsch, 1909, 

 USNM Bull. 68, p. 28, pi. 1, fig. 10. 



acicula, Stilifer: 1849, PBNSH, vol. 3, p. 84 (Feejee [Fiji] Islands, 

 in Holothuria, Drayton), long. %, lat. #o in.; 1852, USEE, vol. 12, 

 p. 207, pi. 14, fig. 246,a-b; 1862, Otia Conch., pp. 54, 245. Figured 

 holotype USNM 5645; 10 paratypes MCZ 169033 ex NYSM 48, 

 original no. A 3503; 3 paratypes MCZ 155928 ex Smithsonian 

 Inst, (printed label); 8 paratypes MCZ 135684 ex BSNH 2564. 



aciculum, Dentalium: 1859, PBSNH, vol. 7, p. 165 (coast of China, 

 23°50'N., in sand, 25 fathoms, W. Stimpson), long. 30, diam. 

 3 mm.; 1862, Otia Conch., p. 119. Holotype USNM 24149, 

 figured by Pilsbry, 1897, Manual of Conchology, ser. 1, vol. 17, 

 p. 93, pi. 17. figs. 65-67; paratype MCZ 169033, ex NYSM 145, 

 original no. G 2405; paratype MCZ 216577 ex Smithsonian Inst, 

 (printed label). NPEE. 



acinosa, Nassa: 1850, PBSNH, vol. 3, p. 154 (hab.?), long. 7 / l0 , 

 lat. % in.; 1852, USEE, vol. 12, p. 261, pi. 19, fig. 329,a,b; 1862, 

 Otia Conch., p. 69. Two syntypes USNM 5725, both smaller 

 than measured specimen. 



acinosa, Peronia: 1852, USEE, vol. 12, p. 291, pi. 21, fig. 384,a 

 (Feejee [Fiji] Islands), long. \%, lat. % in.; 1862, Otia Conch., p. 226. 



acinosus, Trochus [Tectus]: 1849, PBSNH, vol. 3, p. 92 (New- 

 Zealand), diam. %, alt. % in.; 1852, USEE, vol. 12, p. 179, pi. 13, 

 fig. 217,a-c; 1862, Otia Conch., pp. 57, 245. Figured holotype 

 USNM 5617. 



