IIELICINA.— Plate XXIX. 



rounded, columella confluent with tlie outer lip, 

 very obscurely angular at the juncture; outer lip 

 rather thick ; aperture half round. 



SowERBT. Philosophical Journal, vol. i. p. "283. 



Hah. North America. 



Species 262. (Mus. Brit.) 



Helicina Japonica. Hel. testa glohosd, albidd, crassd, 

 spird conicd, acumiTiatd, anfractibus convexiusculis ; 

 ultimo anfractu rotunda ; columelld trigoiid, ad 

 juncturam incisd • lahio externa crasso, rotunda. 



The Japan Helicina. Shell globose, whitish, thick, 

 spire conical, acuminated, whorla rather convex ; 

 last whorl rounded ; columella trigonal, incised at 

 the juncture ; outer lip thick, rounded. 



A. Adajis. Ann. and Mag. of Natural History, liSGl. 



Hub. Japan. 



This rounded species rather resembles Helicina 

 orbiciilata, from which it differs in having the columella 

 separated from the outer lip by an incised notch. 



Species 263. (Mus. Brit.) 



Helicina s-jbconica. Hel. tesid alba, tenui, subangu- 

 latd ; spii-d conicd elevatd ; ultimo anfractu medio 

 obtuse angulato ; columelld cum labia externa con- 

 jluenti; labia externa superne decliui, medio rotunda, 

 basi reriiilsculo. 



The rather conical Helicina. Shell white, thin, 

 rather angular ; spire conical, elevated ; last whorl 

 obtusely angular in the middle ; collumella con- 



fluent with the outer lip ; outer lip sloped above, 

 rounded in centre, rather straight at the base. 



SowERRT. Thesaurus Conchyliorum. Helicina, sp. 140, 

 fig. 22C. 



Hah. ? 



Species 264. (Mus. Brit.) 



Helicina Yorkensis. Hel. testa laivi, suhangulatd, 

 tenui, luted, supra ct infra medium fulvescenti : 

 spird conicd ; aperturd semilunari ; columella bre- 

 vissimd, aculeatd. 



The Cape-york Helicina. Shell smooth, rather 

 angular, thin, yellowish, fulvescent above and 

 below the middle ; spire conical ; aperture semi- 

 lunar ; columella very short, aculeated. 



Pfeiffeh. Proc. Zool. Soc, 1862. 



Hab. Cape York. 



Species 265. (Fig. a, b, Mus. Brit.) 



Helicina subl^vigata. Hel. testa globoso-angulata ; 

 fidi'd unicalori vel late supra ct infrd, fasciatd ; 

 ultimo anfractu subangulato ; callo ventrali tumido, 

 rotunda ; columelld minutd, aculeatd; labia externa 

 rubra. 



The smoothish Helicina. Shell globose, .subangular, 

 uniform fulvous or broadly banded above and 

 below ; last whorl rather angular, ventral callus 

 tumid, rounded ; columella minute, outer lip 

 red. 



Pfeiffeu. Proc. Zoo!. Soc, 1852. 



Hab. New Hebrides. 



