440 Zoological Society, 



From Jamaica; sent by Mr. Adams with H. sinuata, Born, to 

 which it is nearly allied. 



31. Helix ventrosula, Pfr. Hel. testd rimato-perforatd, de- 

 presso-glohosd, tenui, subtiliter striata, pellucidd, corneo-albidd ; 

 spird vix elevatd ; anfracLihus 5^ vix convexiusculis , ultimo subith 

 deflexo, superrie subangulato, basi inflato, ant ice gibbo et valde con- 

 stricto ; aperturd perobliqud, ringente ; peristomate acuto, late 

 rejlexo, marginibus vix conniventibus , laminas elevatas, in ventre 

 anfractds penultimi angulatim junctas emittentibus, dextro lamind 

 subperpendiculari dilatatd, basali dentibus 2 acutis munito. 



Diam. 13, alt. 1\ mill. 



From Mexico (Hinds), and Texas (Sowerby). 



32. Helix Hindsi, Pfr. Hel. testd umbilicatd, depressd, subtiliter 

 striata, corneo-lutescente, diaphand, nitidd; spird parum elevatd; 

 anfractibus 5 planiusculis, ultimo basi convexiore, antice superne 

 defiexo, subtils constricto ; umbilico angusto, pervio ; aperturd 

 perobliqud, lunari, ringente ; peristomate breviter reflexo, margi- 

 nibus conniventibus, callo triangulari, dentiformi, bicrure junctis, 

 dextro lamella subverticali, basali dentibus 2 acutis munito. 



Diam. 8, alt. 4J mill. 



From Mexico (Hinds), and Texas (Sowerby). 



33. Helix Hedenborgi, Pfr. Hel. testd subperforatd, depressis- 

 simd, subdiscoided, acute carinatd, tenuiusculd, confertim rugoso- 

 striatd, superne albido et fusco-variegatd, basi subunicolore fusees- 

 cente ; spird vix elevatd; anfractibus 5^planis, non exsertis, ul- 

 timo basi vix ventrosiore, antice non descendente ; aperturd depressd, 

 angulat -lunari ; peristomate tenui, marginibus subparallelis, su- 

 per o recto, basali breviter reflexo, columellari vix dilatato, reflexo, 

 adpresso. 



Diam. 18, alt. 6 mill. 



On cliffs at the river Baher el Killo, at the Road of Marc Aurel, 

 Egypt (Dr. Hedenborg). 



34. Helix platyodon, Pfr. Hel. testd imperforatd, depresso- 

 turbinatd, minutissime granulato-striatd, albd, fasciis fuscis, albo- 

 guttatis ornatd ; spird elevatd, obtusiusculd ; anfractibus 6 vix 

 convexiusculis, ultimo basi subplanulato, antice deflexo ; aperturd 

 perobliqud, lunato-ovali, intus albd; peristomate late expanso, re- 

 flexo, marginibus callo albo Junctis, columellari perdilatato, ad- 

 presso, dente lato compresso munito. 



Diam. 30, alt. 19 mill. 

 Locality unknown. 



35. Helix retusa, Pfr. Hel. testd imperforatd, subglobosd, apice 

 retuso, tenui, lavigato, basi concentrice striolatd, castaneo-fulvd, 

 albo late strigatd et flammulatd, epidermide hydrophand, albidd, 

 decidud partim indutd, sursiim pallescente, castaneo-fasciatd; spird 

 brevi ; anfractibus 4 convexiusculis, ultimo subangulato, vix de- 

 scendente; columella intrante,<ilbd, superne dentato-dilatatd ; aper- 

 turd rotundato-lunari, intus maryaritaced ; peristomate late ex- 

 panso. 



