HELIX.— Plate CCVIII. 



circular, contracted witli three intcninl lamcUic, lip 



slightly reflected, margins joined. 

 Gbay, MSi5. in Mus. Brit. Pfeifi"cr, ZciUchrill fiir Malac. 



1S45, p. 8C. 

 Ilab. Daniorha, South Africa ; Alexander. 



Most elal)orately and curiously sculptured after the 

 manner of the small DelphinuUe. 



Species 1472. (Mus. Brit.) 



I1ei,i.\ apici.na. llel. te»tS aperte umhilicald, globoto- 

 ilrprennu, supra pltniiiisciild, infra turyidd, albidd, in- 

 lerdum fiiKO-fasciald, striatd, apice conieo-turieyatd, 

 apira suturd profiiitdd ; anfraciibiu quaiuor ad giiin- 

 fjiie, concexis, iillimo aiilice dilalato ; aperturd rolun- 

 dato-lunari, labro mberpanso. 



The tcfted Helix. Shell openly umbilicated, globosely 

 depressed, rather flat above, swollen beneath, whitish, 

 sometimes brown-banded, striated, horn-variegated 

 at the apex, suture of the spire deep ; whorls four to 

 five, convex, the last dilated in front ; aperture ro- 

 tundately lunar, lip a little expanded. 



La.marck, Anim. sans vert. (Deshayes" edit.) vol. vii. p. 74. 



Ilab. Southern Europe. 



Allied to //. testalis, from wluch it chiefly diflers in being 

 obtusely angularly contracted round the umbilicus. 



Species 1473. (Coll. D'Orbigny in Mus. Brit.) 



Helix teiodonta. Eel. testa mediocriter excacalo-um- 

 bilicatd, orbicidato-coHvexd, crassd, taviyatd, fiisco- 

 riibetile ; spird bred, obtusd ; aufractibiis qu'nique, de- 

 cliti-concexis, obtuse cariimlis ; aperturd oblique qua- 

 drato-lunari, labro incrassalo, late rejkxo, tridentatu, 

 marginibus callo juiiclis. 



The three-toothed Helix. Shell moderately exca- 

 vately umbilicated, orbicularly convex, thick, smooth, 

 brown-red ; spire short, obtuse ; whorls five, slant- 

 ingly convex, obtusely keeled; aperture obliquely 

 (juadrntely lunar, lip thickened, broadly reflected, 

 thrcc-toothed, margins joined by a callosity. 



D'Okiiiony, Voy. dans rAmi'riciue Mi'ridionale, p. 234. 

 pi. 24. f. 1-3. 



Ua/t. Puna Island, Guayarjiiil River, Ecuador. 



Distinguished from its allies by the three small blunted 

 teeth of the aperture, but not distinct in any other respect. 



biculari-depreud, tordidi oUtactS, nbirrfffularilfr m- 

 goso-striatd ; tpird subplauulatd, tuturit impreuit i 

 an/ractibus quaiuor, coHtexis ; aperturd luHoto-circu- 

 lari, labro simplici. 



Hooker's Helix. Shell moderately umbilicated, orbicu- 

 larly depressed, dull olive, rather im-giJnrly roughly 

 striated ; spire rather flat, with the sutures impn-ssed; 

 whorls four,convex; aperture lunar-circular, lip simple. 



Hab. Rerguelen's Land; Dr. J. D. Hooker. 



A small depressed species, collected by Dr. Hooker in 

 the zVntarctie Expedition of the Erebus and Terror, pecu- 

 liarly characterized by the sombre olive-homy coating of 

 Faludiuu and .tinpuUaria. 



Species 1474. (Mus. Brit.) 

 Helix Huokehi. llel. testa mediocriter uml/illcald, or- 



Species 1475. (Coll. D'Orbigny in Mus. Brit.) 



Helix cyclodox. Hel. Ustd vix umbilicatd, troch\formi, 

 rugoso-striatd, fttscesceule-albidd ; spird lurritd; am- 

 fractibus seplem, plauiusculis, dentaio-carinatis, supra 

 cariuam serie tuberculorum iustruclis, au/ractu ultimo 

 basi vix contexiusculo ; aperturd depressd, augulalo- 

 lunari, labro siniplici. 



The tooth-encibcled Helix. Shell scarcely umbili- 

 cated, troehus-shaped, roughly striated, brownish- 

 white ; spire turreted ; whorls seven, rather flat, 

 dentately keeled, with a row of tubercles above the 

 keel, last whorl but little convex nt the base ; aper- 

 ture depressed, angularly lunar, lip simple. 



Webb and Bektuelot, D'Orbigny, Moll, des Isles Ca- 

 naries, p. 64. pi. 2. f. 1-3. 



JIab. Canary Islands and Azores. 



Singularly characterized by its fine tubercular keel. 



Species 1476. (Coll. Chitty in Mus. Brit.) 



Helix FOBTIS. llel. lestd imper/oratd, depressd, globosd, 

 solidd, teiine grauulatd, subcariiiald, ru/o-fuscd, carixd 

 pallida; spird coiicexo-conoided ; au/ractibus qtiiuque, 

 superue subcoiiraris, delude rotundatis ; aperturd rt 

 dentibus ut in 11. siiiuala. 



The strong Helix. Shell imperforated, dcpressly glo- 

 bo.se, solid, finely frranulated, faintly keeled, re<l- 

 brown, keel pale ; spire eonvexly conoid ; whorls five, 

 slightly concave at the upper part, then rounded, 

 operture and teeth as in Helix siuuaia. 



Adams, Contributions to Concholog)-, No. 5. p. 77. 



Uab. Jamaica. 



A fine stout shell, ver\' closely allied to II. sinuata, from 

 which it differs little except in being large and obese. 



