helicina. 29:3 



Sect. X. Medio earinata. 

 In the remaining species the last whorl is keeled in the centre. 



222. variabilis, Wayn., (f. 386-388.)— Supra et inf'r;\ in- 

 flata. — Swelled above and beneath. A second keel appears in 

 some specimens. 



223. Ghiksbreghti, Pfr., (f. 432.) — Striata, depresso-angu- 

 lata. — Striated depressed, angular. 



224. Besckei, Pfr., (f. 433.) — Quam sp. 318 magis inllata, 

 spira tseniata. — More inflated than sp. 318, the spire banded. 



225. cijtctella, Sh., (f. 389, 390.)— Tenuis, subelevata, aper- 

 tura declivi. — Thin, rather elevated, aperture sloping downwards. 



226. virens, Pfr., (391, 392.) — Apertura ad carinam elevata. 

 — Aperture raised to the keel. 



227. Rohei, Pfr., (f. 393, 394.)— Trochiformis, rugosa, 

 valide earinata. — Trochiform, rough, strongly keeled. 



22S. uberta, Gould, (f. 396, 397.) — Depressa, subtus callosa. 

 — Depressed, callous beneath. 



229. solidula, Gray, (f. 39S, 399.) — Crassa, labro angulatim 

 producto. — Thick, outer lip angularly produced. 



230. albolabris,/^., (f. 400.) — Crassa, depressa, labro tenui. 

 • —Thick, depressed, lip thin. 



231. Maugerije, Gray, (f. 395.) — Solida, depressa; labio et 

 labro crassis, callosis, aurautiis. — Solid, depressed; inner and outer 

 lips thick, callous, orange. 



232. lens, Lea, (f. 406.) — Parva, lenticularis. — Small, lenti- 

 cular. 



233. Nicobarica, Phil., (f. 381, 382.)— Depressa, tseniata. — 

 Depressed, banded. 



234. pallida, Gould, (f. 404.) — Pallide fulva. — Pale fawn. 



235. albocincta, Jaq., (f. 403.) — Carina et labro albis. — 

 Keel and lip white. 



236. corrugata, Pze., (f. 401,402). — Supra undulata. — Un- 

 dulated on the upper surface. 



237. villosa, Ant., (f. 407, 408.)— Ad carinam ciliata. — 

 With hairs at the keel. 



vol. iii. 2 v 



