HELICINA.— Plate XXIII. 



in the middle, convex below the middle ; columella 

 white, produced below into a curved spire ; outer 

 lip arched above the middle. 



SowERBY. Thesaurus Conchyliorum,'2nd Mon., Sp. 245. 



Ilab. Brazil. 



Species -201. (Mus. Brit.) 



Helicina GONOCHEiLA. Hel. ttstd (Icprcssd, atujulatu, 

 fumoso-fusca, suprd et infra lineis, medio pimctis 

 rubris notatd ; spird depresso-conicd ; ultimo aii- 

 fractu medio angidato, alhofasciato ; columella alba, 

 in spiram recurvaiii producto ; labia extciiw com- 

 plaiiato, reflexo. 



The ANGLE-LIPPED Helicina Shell depressed, angular, 

 smoky-brown, marked above and below with red 

 lihi < Awl ill ilic middle with spots; spire depressed- 

 .■.iiii,:,l ; l:i-i wliorl angular in the middle, white- 

 li.iii.l. il ; ciiliimella white produced into a recurved 

 spiru; outer lip flattened, reflected. 



rFEiFni:. Proc. Zool. Soc, 1818. 



Ilab. Venezuela. 



Species 202. (Mus. Brit.) 



Helicina Sowerbyana. Hel. testa magnd, albidd, gh- 

 boso-angulatd, aupenie spiraliter striata ; sjiira 

 conicd, npice aaiminato ; ultimo anfractu ventri- 

 coso, infra angulum eoiivexo, medio carinato ; callo 

 ventrali craxso, coluvwlld parrd, ad junctirrain 

 angulato ; labio externo reflexo, expanso, medio 

 obtuse angulato. 



Sowerby's Helicina. Shell large, white, globosely 

 angular, spirally striated above ; spire conical, 

 ape.x acuminated; last whorl ventricose, convex 

 below the angle keeled in the middle ; ventral 

 callus thick, columella small, angular at the 

 junction ; outer lip reflected, expanded, obtusely- 

 angular in the middle. 



Pfeiffer. Proc. Zool. Soc, 1848. 



Ilab. Guatemala. 



Species 20o. (Mus. Brit.) 



Helicina villosa. TLl. testa parvd, coiiipressd, 

 fimoso-fiisrd, medio anfractimm cariiiatd, ad 

 carinam setis crispatis ornatd ; ultimo anfractu 

 depresso ; aperturd subtrigond, labio externo 

 crasso, planulato. 



The hairy Helicina. Shell small, compressed, smoky- 

 brown, keeled in the middle of the whorls, orna- 

 mented with curled hairs at the keel ; last whorl 



depressed ; aperture subtrigonal ; outer lip thick, 



flattened. 



Anthony. ? 



Helicina pilosa, Sower by. 

 Hub. Isl. Opara. 



Species 204. (Mus. Brit.) 



Helicina albo-cincta. Hel. testd parvd, depressd, 

 lentindari, fumoso-fuscd ; ultimo anfractu obiusS 

 carinatd ; carind alba ; aperturd parvd, columelld 

 teniii, albd, obliipid ; lahio c.rterno alho, angusto, 

 rotuuilo 



The white-belted Helicina. Shell small, depressed, 

 lenticular smoky-brown ; last whorl obtusely 

 keeled; keel white: aperture .small; columella 

 tliin. white, oblicjuc ; outer lip wMte, narrow 

 r..uiid..,l. 



II.iMI;i;iGlL Voy. Pol. Slid. Moll. 



//.//-. Am Wand. 



Species 205. (Mus. Brit.) 



Helicina iumilis. Hel. testa win iitd, fused, lenticu- 

 lari : spird depressd; ultimo anfractu medio 

 aiii/ulatd ; callo ventrali rdba, rrasso, columelld 

 arcuatd ; labio externo haud nflixo. 



The humble Helicina. Shell minute, brown, len- 

 ticular; spire depressed; last whorl angular in the 

 middle ; ventral callus white thick, columella 

 arched, outer lip not reflected. 



Hombrigh. Voy. Pull. .Sud. lloW., t. ii. f. .lO-S?. 



Hab. Hogolu. 



Species 20C. (Mus. Taylor.) 



Helicina Tayloriana. Hrl. test,) tmui, ungulatd, 

 aurantid, medio anfractnum aruti carinatd ; carind 

 utringue lined rubrd marginatd ; spird conicd ; 

 columelld albd, tenui, infrd, in spinam prodiictd ; 

 labio externo reflexo, albo, planulato. 



Taylor's Helicina. Shell thin, angular, orange, 

 sharply keeled in the middle of the whorls ; keel ^ 

 bordered with a red line on each side; spire 

 conical ; columella white, thin, produced into a 

 spire below ; outer lip reflected, white, flattened. 



SOWERBY. 



Hab. ? 



This is one of the prettiest and most characteristic of 

 all the species. 



