HELICINA. 291 



194.. Okbigxyi, Pfr., (f. 346, 347.)— Solida, depressa, labro 

 crassiuseulo. — Solid, depressed, outer lip rather thick. 



195. Omitted. 



196. diaphaxa, Pfr., (f. 341.) — Tenuis, elevata, col. trigona, 

 labro superne depresso. — Thin, raised, columella trigonal, outer 

 lip depressed above. 



197. Louisadensis, Fbes., (f. 349, 350.) — Minuta, translucida. 

 — Minute, transparent. 



19S. sobovalis, Sby., (f. 376.) — Sublenticular, lutea, labro 

 rotunde reflexo, operculo castaneo. — Sublenticular, yellowish, outer 

 lip roundish, reflected. 



199. aurantio-viridis, Sby., (f. 3S0.) — Rotundatirn subde- 

 pressa, medio viridis, subtus et margine superiori ultimi anfractus 

 pallide aurautia ; labio interno rotundatirn calloso ; columella ad 

 terminum uncinate ; labro castaneo, rotundo, infra subemargi- 

 nato ; spira parva. — Round, depressed, green in the middle, pale- 

 orange beneath and at the upper edge of the last whorl ; outer 

 lip with a round callus ; columella hook-shaped at the end; outer 

 lip slightly emarginate beneath ; spire small. Specimens of this 

 exist in the Cumingian and other collections under the name of 

 H. viridis. The true shell of that name is quite angular. 



200. Hjalmarsoni, Pfr., (f. 476.) — Tenuis, cornea; col. tri- 

 gona ; labro tenui, superne depresso. — Thin, horny ; col. trigonal ; 

 outer lip thin, depressed above. 



201. gratiosa, Pfr., (f. 353.) — Quam sp. 197 crassior, magis 

 conica. — More conical and thicker than sp. 197. 



202. polita, Sby., (f. 354-356.)— Tenuis, angulatim de- 

 pressa ; labro laminato, subangulato. — Thin, angularly depressed ; 

 outer lip laminar, subangular. 



203. citrixa, Graf., (f. 453.) — Quam sp. 202 anf. magis 

 rotundis. — Whorls rounder than in H.jpolita. 



204. Crossei, Lemj)., (f. 357.) — Quam sp. 202 crassior, labro 

 semilunari. — Thicker than sp. 202, outer lip semilunar. 



205. Rotella, Sby.,(L 358.) — Conico-depressa. — Conically de- 

 pressed. 



205* (or 271). maculata, Sowb., (f. 472.) — Fasciata et arcua- 

 tim maculata. — Banded with arched markings in the centre. 



206. nodjE, Gund., (f. 378.) — Solida, labro et col. crassis. — 

 Solid, outer lip and col. thick. 



