HELIX. 



Plate CXXXII. 



Species 807. (Mus. Cuming.) 



Helix Cokesia. HeL testa umbUicatd, depremiimcula, 

 pellucido-corned, olivaced ; ipird pared; anfractiljus 

 Iriiiis ad tjimtuor, ten tie costelluto-striatk, ultimo ro- 

 tundato ; apertiird subanipln, circulari ; perisloinate 

 aubexpanso. 



The Couesia Helix. Shell umbilicated, rather de- 

 pressed, transparent horny, oliv(^ ; spire small ; 

 whorls three to four, finely rib-like striated, the last 

 rounded ; aperture rather large, circular ; lip a little 

 expanded. 



Zonite-i Coresia, Gray, Pro. Zool. Soc. 1S49. p. 166. 



Hai. Auckland, New Zealand ; Greenwood. 



.\ very delicate subtransparent sliell, composed of horny 

 epidermal substance. 



Species 808. (Mus. Cuming.) 



Helix infecta. Ilel. testa ampliler nmbilicatd, con- 

 vexo-depressd, fiiscescente, macidis riijis (jratidibus qua- 

 dralk ornatd ; anfraclibus quatuor ad quinqne, tenue 

 costellato-striatis, idtimo rotundato ; aperturd parvd, 

 Immt'i-circidan ; peristomate simplici. 



The tainted Helix. Shell largely umbilicated, con- 

 vexly depressed, light brown, ornamented with large 

 red square spots ; whorls four to five, finely rib-like 

 striated, last whorl rounded ; aperture small, lunar- 

 circular ; lip simple. 



Uelix zeta, Pfeiffer, Pro. Zool. Soc. 18,51. 



Ilab. New Zealand. 



Well characterized at the upper part by its tessellated 

 painting of large square red blotches. 



Species 809. (Mus. Cuming.) 



Helix pildla. llel. testa umbUicatd, subglobosd, tiimidi- 

 usculd, fiiscescente, rufo tenue lentiffinosd ; anfractibivs 

 quatuor ad quinque, contexts, creberruiui costellato- 

 slriatis ; aperturd lunari ; peristomate simplici. 



The pill Helix. Shell umbilicated, somewhat globose, 

 rather swollen, light brown, finely freckled with red ; 

 whorls four to five, convex, very closely rib-like stri- 

 ated ; aperture lunar ; lip simple. 



Helix iota, PlVifier, Pro. Zool. Soc. 1851. 



ITab. New Zealand. 



Of the same typical character as the preceding species, 

 but globosely rounded, and more closely strintcd. 



Species 810. (Mus. Cuming.) 



Helix biconcava. Ilel. testa latissime umbUicatd, an- 

 gusti diicoided, fuscesct-nte, rufo strigatd el cariegatd ; 

 spird concavo-impressd ; anfraclibus quinque, creber- 

 rime lenuisiime costellalo-slriatis ; aperturd lunatu- 

 circulari : peristomate simplici. 



The biconcave Helix. Shell very broadly umbili- 

 cated, narrowly discoid, light brown, streaked aiiil 

 variegated with red ; spire concavcly impressed ; 

 whorls five, very closely and finely rib-like striatal ; 

 aperture lunar-circular ; lip simple. 



Pfeiffek, Pro. Zool. Soc. 1851. 



Hab. New Zealand. 



Convoluted on a discoid plane, concave both on ilic 

 upper and under surface. 



Species SIl. (Mus. Cuming.) 



Helix collyrula. Ilel. tesfd umbUicatd, supra plamild, 

 infra conxexd,fuscescente, rufo maaUatdet lentiginuM; 

 anfraclibus quatuor, supemi obtuse angulalu, crebtr- 

 rime et tenuissimi coslellato-striatis ; aperturd luHnri .- 

 peristomate simplici. 



The LiriLE cake Helix. Shell umbilicated, tlatumii 

 above, convex beneath, light bro^vn, blotchid and 

 freckled with red ; whorls four, obtusely angled at 

 the upper [lart, very closely and fiuely rib-like stri- 

 ated ; aperture lunar ; lip simple. 



Helix kappa, Pfeiffer, Pro. Zool. Soc. 1851. 



Hab. New Zealand. 



This and the two preceding species, though differing m) 

 materially in their plan of convolution, belong to the same 

 peculiar type of which so many dilferent forms have U-en 

 collected in New Zealand. 



?])tciis ^\i. (.Mus. I uuung.) 



Helix seuicatila. Uel. testa umbUicatd, deprati. dit- 



coided, subtililer et confertim coiltUato-ttriald, tnbar- 



ricd, griseo-corned, linris brunxeis irregularibui radi- 



I aid ; spird plana ; anfraclibus quatuor ad quinque, 



1 cOHCexiusculis, ultimo subrolnndnto, juita umbiiicum 



(Jctober, 1852. 



