44 Moll . 
MOLLUSCA. 
fossil genera, proposed mostly by Gabb & Conrad, all of which he thinks 
are probably subgeneric to Voluta ; dentition of Cymbium , pi. ii. fig. 2, of 
Meloy fig. 3, of Voluta , figs. 4-6, of Lyria , fig. 7. [The author does not 
appear to know Scliackos paper on the dentition of Voluta and Cym- 
bium ; see Zool. Rec. xviii. Moll. p. 43.] 
Voluta (L.), 68 spacies and some varieties, distributed into 15 sub- 
genera, described and figured by Try on, l. c. pp. 82-101, pis. xxiv.-xxix. 
Lyria (Gray), 16 species described and figured, id. 1. c. pp. 102-105, 
pi. xxxi. figs. 133-150. 
Cymbiola lutea, sp. n., Watson, J. L. S. xvi. p. 331, W. of New Zea- 
land, 275 fath. 
Volutilithes abyssicola (Ad. & Rv.), full grown specimen, height 3*8 ; 
described by Watson, l. c. pp. 327-329. 
Provocalor , g. n. Shell smooth, fusiform, having the apex of Ancil. 
laria, the enamelled suture of Bullia , the pillar-folds of Voluta , and the 
sinus of Pleurotoma. P. pulcher, sp. n., between Kerguelen and Heard 
Island, 150 fath., height 36. Watson, l. c. pp. 329 & 330. 
Wyvillea , g. n. Shell ovate, cymbiform, thin, rough, spire high scalar, 
apex mamillate and irregular, suture canaliculate ; mouth large, ovate, inner 
lip with a wide-spread thinnish callus ; pillar perpendicular, with a very 
slight turn, without teeth, but with an abrupt break of the edge about 
the middle of its length ; no operculum. W. alabastrina } sp. n., height 
6 - 6, off Marion Islands and the Croze ts, 1600 fath. Id. 1. c. p. 332. 
Microvoluta australis (Augas), Tryon, l. c. p. 105, pi. xxxi. figs. 151 & 
152. 
Cymbium (Klein), 5 species admitted arid figured ; id. 1. c. pp. 78-80, 
pi. xxii. figs. 1-13. 
Melo (Humphr.), only 4 species with numerous varieties admitted and 
described ; id. 1. c. pp. 80-82, pi. xxiii. 
COLUMBELLIDAC. 
Columbella costulata (Cantraine, Fusus , 1837) •= haliaeti (Jeffr.), 
Mediterranean, 85-544 fath., Jeffreys, Ann. N. H. (5)x. p. 32. 
Columbella ( Anackis ) ostreicola , sp. n., Sowerby, P. Z. S. 1882, p. 119, 
pi. v. fig. 10, Florida, on Ostrea virginiana. 
Columbella ( Pyrene ) strix and stricta , spp. nn., St. Thomas, W. Indies, 
390 fath., Watson, J. L. S. xvi. pp. 338-340. 
Columbellopsis, subg. n. of Columbella , not characterized ; type, C. minor 
(Scacchi), Bucquoy & Dautzenberg, Moll. mar. de Roussillon, pt. ii. p. 77, 
pt. iii. pi. xiii. figs. 9 & 10. 
[?] Columbella choava (Reeve), no operculum, median plate of the 
radula without teeth ; Hutton, Tr. N. Z. Inst. xiv. p. 163, pi. vii. figs. 
O & P. 
Astyris diaphana and pura , spp. nn., New England, 65-487 fath., 
formerly confounded with rosacea (Gould) and zonalis (Linsley), Verrill, 
Tr. Conn. Ac. v. pp. 513-515, the former, pi. lviii. fig. 2, and also in 
P. U. S. Nat. Mus. v. pp. 322 & 323. 
