HELIX. 



Plate XIX. 



Species 77. (Mus. Cuming.) 



Helix adusta. Hel. testa umbilicata, ci/lindraceo-ovatd, 

 Pitp<rformi, soUdiuscula, oblique striata, castaiied, apice 

 pallida; sutiird lavi; anfractiius sex, conveximculis, 

 ultimo pallide unifasciato ; columella recte descendente, 

 intus subtorto-inmcald ; aperturd rotimdato-ovali ; 

 perislomate castatieo, late expattso, rejlexo, margine co- 

 lumellari perdilatalo, rejlexo, sidappresso. 



The burnt Helix. Shell umbilicatcd, cylindrically 

 ovate, Pupa-shaped, rather solid, obliquely striated, 

 chestnut, pale at the apex ; suture smooth ; whorls 

 six, rather convex, the last faintly one-banded ; colu- 

 mella descending straightly, slightly twisted and trun- 

 cated within; aperture rotundately oval ; lip chestnut, 

 broadly expanded, reflected, eolunieUar edge very 

 much dilated, reflected, and appressed. 



SowERBY, Pro. Zool. Soc. 18-il, p. 39. 

 Bidimiis adiis/us, Pfeifl'er. 



Halt. Island of Mindoro, Pliilippincs ; Cuming. 



This species, like //. lirac/ii/odon, partakes almost in 

 equal measure of the characters of Helix, Bulimiis, and 

 Pupa. 



Species 78. (Fig. a, b, Mus. Cuming.) 



Helix cinekascens. Hel. testa imper/oratd, globoso- 

 turbinatd, tenuiusculd, stramined, fasciis nigricantiius 

 supra infraqtte ornatd, epidermide tenui, liydrophand, 

 cinered iiidufd; spird breviter turbinatd, apice obtu-sd ; 

 aiifractibus quinque ad sex, convexiusculis, ultimo basi 

 inflato ; columella subarcuatd, carneo-f used ; aperturd 

 rotundato-hinari, iiilus alba ; perislomate breviter ex- 

 pamo, subincrassato, caslaneo-limbalo. 



The pale ash Helix. Shell imperforated, globosely 

 turbinated, rather thin, straw-coloured, ornamented 

 above and below, on cacli whorl, with two blackish 

 bands, covered with a thin hydrophanous ash epider- 

 mis; spire shortly turbinated, obtuse at the apex; 

 whorls five to six, rather convex, last whorl inflated 

 at the base ; columella slightly arched, flesh-brown ; 

 aperture rotundately lunar, interior white ; lip broadly 

 exj)andeil, rather tiiickeiied, edged with chestnut. 



Pfeiffer, Pro. Zool. Soc. lSi5, p. 54. 



Hab. Island of Masbate, Philippines ; Cuming. 



A very characteristic species, of which Mr. Cuming col- 

 lected only a few specimens. 



Species 79. (Mus. Cuming.) 



Helix brach yodon. Hel. testd umiilicald, oraid eel glo- 

 bosd, castaned, pallide fasciatd, oblique atriatuld ; tu- 

 turd distinctd; an/ractiius sex, couvexiutciUit, uUimo 

 ad aperturam deflexo ; columella late refiexd, intut 

 unideiitatd, alio-callosd; aperturd luiiato-rotundald, 

 perobliqud, basi unidentatd ; peristomate late refteio, 

 nigro-fusco marginato. 



The short-toothed Helix. Shell umbilicatcd, ovate 

 or globose, chestnut, faintly banded, obli<|ucly finely 

 striated; suture distinct ; whorls sLx, rather convex, 

 the last deflected at the aperture ; columella broadly 

 reflected, one-toothed within, white, callous ; aperture 

 lunar- rounded, very oblique, one-toothed at the base ; 

 Up broadly reflected, edged with black-brown. 



SowEKBY, Pro. Zool. Soc. 1 840, p. 89. 

 Bulimus hrachjodon, Pfeiffer. 



Hab. Island of Mindoro, Philippines ; Cuming. 



This curious species may always be recognized by the 

 callous tooth-like processes at the columellar base of the 

 aperture, as represented in the accompanying figure. 



Species SO. (Fig. a, b, Mus. Cuming.) 



Helix melanocheila. Hel. testd imperforald, depreuo- 

 globosd, crassiusculd, fused, epidermide hydrophand 

 cinereo-fuscd fasciatim obductd, fasciis nigris omald ; 

 spird depresso-semiglobosd ; anfractibus quatuor ad 

 quinque, vix concexiusculis ; columella perobliqud, late 

 expansd, albd ; aperturd lunato-rotundatd, intut alba ; 

 perislomate subincrassato, expanse, nigricante. 



The black-lipped Helix. Shell imperforated, (h'- 

 pressly globose, rather thick, brown, covered with a 

 banded ash-brown hydrophanous epidermis, orna- 

 mented with black bands : spire deprcssly s«-miglo- 

 bose ; whorls four to five, rather convex ; colunit-ihi 

 very oblique, broadly expanded, white ; apcrtiin: 

 lunar-rounded, interior white ; hp slightly tUickcUMi, 

 expanded, blackish. 



May, 1851. 



