HELIX. 



Plate CXCVIII. 



Species 1389. (Mus. Cuming.) 



Helix ellipsostoma. Hel. lestd wmioLti'cti umbilicald, 

 lenticulari, miniUUsime grunidald, n'ujro-bruimed ; 

 ipird depresso-conoitled ; nulurd iiihiaargiiiald ; aiifrac- 

 libus quinque, plaiiiunciilis, ultiiiio /tciitUsime cariiiato, 

 aidice unbito drjhxo, trUcrobk-iilato ; aperliird hori- 

 sontali, elUplico-rhombed, deiite liiero lamellaformi 

 intranle, labro conliituo, alio, margiiie parielali t-recto, 

 siipero breviter expanso, banali ri'Jkxo, medio subanijit- 

 latini deHcendente, parte sinktrd tubercido unico, dex- 

 trd jdicii diiabm divergenlibim bad jiiiictix. 



The ELLiPTic-MOUTn Helix. Shell with a half-covered 

 iirabiliciis, leiis-shaped, very minutely granulated, 

 black-brown ; spire depressly conoid ; suture slightly 

 margined ; whorls five, rather Hat, the last very sharply 

 keeled, suddenly deflected in front, three-pitted ; 

 aperture horizontal, elliptic-rhomboid, with a free 

 lamelliform tooth on the body-whorl, lip continuous, 

 white, parietal margin erect, upper shortly expanded, 

 basal reflected, somewhat angularly descending in the 

 middle, left part with a single tubercle, right with 

 two diverging plates, joined at the base. 



Pfeii'FEB, I'ro. Zool. Soc. November, 185-1. 



Hob. Santa Fe de Bogota. 



An interesting species, of the plaited mouth group, col- 

 lected at Santa Fe de Bogota i)y Mr. Marks, Consul- 

 General of that district. 



Species 1390. (Mus. Cuming.) 



Helix subrudis. Hel. testa mbampUter profundi um- 

 bilicald, depresso-orbicidari, siibrude dense plicato- 

 driald, albidd, siiperne caslauco-fasciatd, apire earned; 

 anfraclibns quinque, mbrotundatis ; aperlurd circu- 

 lari, labro umplici. 



The iiUDE Helix. Shell rather largely deeply umbili- 

 cated, depressly orbicular, rather rudely densely pli- 

 cately striated, whitish, chestnut-banded at the upper 

 part, flesh-tinged at the apex ; whorls five, somewhat 

 rounded ; aperture circular, lip simple. 



Pfeiffek, Pro. Zool. Soc. November, 1854. 



Ilai. ? 



A roughly striated species, of rounded growth, whitish 

 beneath, reddish-chestnut banded above. 



Species 1391. (Mus. Cuming.) 



Helix Kuaussi. Uel. testa profundi umbilieatd, globuto- 

 depressd, versus aperturain oblique productd, dense 

 striata, olicaceo-cortied ; spird nix eleeald; anfritcti- 

 bus quatuor ad quinque, ultimo lato, injiato, iintici 

 paululmn dejlexo ; aperlurd perobliqua, subampld, 

 lunari-circulari, labro simplici, margini/tut approxi- 

 matis. 



Krauss's Helix. Shell deeply umbilicated, globo.sely 

 depressed, obliquely produced towards the aperture, 

 closely striated, olive-horny ; spire scnrcely raised ; 

 whorls four to five, the last broad, inflated, a little 

 deflected in front ; aperture very oblique, rather large, 

 lunar-circular, lip simple, with margins approximating. 



Pfeiffeb, SymboliB, vol. iii. p. 70. 



Ilab. Knysna, Cape of Good Hope (in the woods) ; Krauss. 



.V semitransparent olive-horny species, with the last 

 whorl circularly convoluted, but much enlarged and ob- 

 liquely produced towards the aperture. 



Species 1392. (Mus. Cuming.) 



Helix loxotropis. Ilel. testa excamti profundi um- 

 bilicatd, turbinato-depressd, solidiusculd, obliqui teiiui- 

 siriatd, sordidi luteseente, ad sidiiram opaco-albd, 

 lined unicd castaiieo-rufd, fasciisque duabus Uitis cas- 

 laneo-rufis ad basin ; spird obltuo-conoided ; anfrac- 

 tibus quinque, dect ici-concexis, uUimo antici dejlexo, 

 infra plano-concaco, pone labruin conslricto ; nprrtiird 

 Jiorizontali, transcersi lunari-oeali, labro expanao-rr- 

 fiexo, marginibus approximatis. 



The obliquely-keeled Helix. Shell e.vcavatcly deeply 

 umbilicated, turbinately depressed, rather solid, oli- 

 liqucly finely striated, dirty-yellowish, opake-while 

 at the suture, with a single chestnut-red line, and two 

 broad red bands beneath; spire obtusely conoid; 

 whorls five, slantingly convex, the last deflected in 

 front, flatly concave beneath, conslricteil behind the 

 lip ; aperture horizontal, transversely lunar-oval, lip 

 expandcdiy reflected, with the margins approximating. 



Pfeiffek, Zcitschrift fiir Malac. 1850, p. 32. 



Ilab. Moluccas. 



A solid characteristic species, cxcavatcly flattened be- 

 neath, with the lip cxpnudcdly produced and constricted. 



lU'ccmbcr, 185I-. 



