HELIX.— Plate XLIII. 



Species 199. (Mus. Cuming.) 



Helix Rawsoxis. Het. U»td rix umiUieata. depreuo- 



nmoided, cornea, pellucida ; anfraelUm* »ez, tupeme 



ctmoexit, ertberrimi eomeemiriee cotUdato-ttriat'u, am- 



fraetu ultimo ad peripJteriam aaUi earinaio, bam ro- 



ttmdaio ft cottulato-driato ; lain nmplici, wutrgime 



eoUmeUari brevutimi rr/lexo, maMliewm partim tegente. 



Rawsos's Helix. Shell slightl\ ' ' 'ed, depressly 



conoid, homy, transparent ; u lOnvex at the 



upper part, and very closely concentrically rib-like 



striated, last whorl sharply keeled at the periphery, 



rounded and rib-Uke striated at the base ; lip simple, 



columellar margin veiy shortly reflected, partially 



covering the umbilicus. 



Ppeiffer, Pro. Zool. Soc. 1851. 



Hah. Mauritius. 



This species is unusually rounded at the base, and con- 

 centrically rib-like striated throughout, both above and 

 below. 



Species 300. (Mus. Cuming.) 



Helis pixguis. Hel. testa viz umiilicala, orbictdari, 

 mbdixoided, eomea, niiente ; tpira depresid ; tuturu 

 duiimetu; amjractibia quimque, context*, tenti aeerexen- 

 tUmt, uUimo rotttndato ; aperiura partd, lunari ; per'i- 

 ftomaie mmplici, acuio, margvie columellari brerUtime 

 rgCezo, umbilieMm partim tegexte. 



The gbeast Keux. Shell slightly nmbilicated, orbicular, 

 somewhat discoid, homy, shining : spire depressed ; 

 sutures distinct; whorls five, convex, slowly enlarging, 

 the last rounded ; aperture small, lunar ; lip simple, 

 sharp, columellar margin very shortly reflected, par- 

 tially covering the umbilicus. 



KxACSs, Sudafrikanischen MoU. p. 73. pi. 4. f. 19. 

 A smaU shining homy speries, of regular discoid 



growth, approaching the form of Planorbii. 



corned, conrentriei mdique confertiuimi eottulato- 

 striat£; tpirddepreuiiuculd; tuturitdisttMetis ; anfrac- 

 tibtu quatnor ad quimqne, tnbrottmdatU ; aperturd 

 lunari ; perittomate timpliei, aargime eoUmeUari bre- 

 viMtmi refiexo, umbilieum partim tegente. 



Thx sux-BURXT Helhc. Shell nmbilicated, orbicular, 

 thin, homy, v.'^ ' ' " Ily rib-like striated 



throughout ; >, . sutures distinct ; 



whorls four to five, rather rounded ; aperture lunar ; 

 lip simple, columellar margin very shortly reflected, 

 partially covering the umbilicus. 



Kracss, Sudafrikanischen Moll. p. 77. pi. 4. f. 26. 



Hab. Natal. 



The shell here described and figured docs not answer 

 correctly to Krauss's description and figure of H. aprica in 

 the work above referred to, but it has been received by 

 Mr. Cuming with other authentic specimens of Natal 

 shells so named, and is characterized by a peculiar bronre 

 glow, just such as might have stiggested the appellation 

 of ' sun-burnt.' 



Species 201. (Mus. Cuming.) 

 Helix aprica. Hel. te*td umbiUeatd, orbieulori, tenui. 



Species 202. (Mus. Cuming.) 



Relix Capexsis. Hel. tesfd umbiUeatd, qloboto-deprata, 

 tenui, opacn, niiiduld, albd, apice earned, punctii nigri- 

 eantibut aspersd, obsolete futco-raJiatd et fatciata ; 

 anfractihu* quatuor ad quiuque, converts; umbilieo 

 angustistimo ; aperturd tubampld, lunari, intus fulce*- 

 ctnte ; perittomate simpliri, aciito. 



The Cape Hzux. Shell umbilicated, globosely depressed, 

 thin, opake, rather shining, white, flesh-tinged at the 

 apex, sprinkled with black dots, obsoletely brown- 

 rayed and bandefl ; whorls four to five, convex : um- 

 bilictis very narrow; aperture rather large, liu&r, fiil- 

 vous within ; lip simple, sharp. 



PrEiFFEB, Symlxjla?, vol. i. p. 40. 



Hab. Cape of (Jood Hope. 



Closely allied to a well-known European form. 



