71 



June 10, 1845. 



Rev. John Barlovv in the Chair. 



" Descriptions of twenty-two new species of Helix, from the col- 

 lections of Miss Saul, — Walton, Esq., and H. Cuming, Esq.," by 

 Dr. Louis PfeifFer : — 



1. Helix PACHYSTYLA, Pfr. Hel. testd imperforūtd, clobosd, soUdd, 

 ponderosd, striatd, lineis concentricis decussatd, albd, epidermide 

 sordide viridi, nigricanti-radiatd indutd ; spira brevi ; anfractibus 

 5 celeriter accrescentibus, ultimo globoso, antice breviter deflexo ; 

 columelld obligud, dilatatd, callosd, albd, obsolete et late uniden- 

 tatd ; aperturd irregulariter lunato-rotundatd, intus lacted; peri- 

 stomate recto, intus subincrassato, margine basali rejiexiusculo. 



Diam. 43, alt. 37 mill. 

 Locality, New Zealand. 



Similar to H. pomum, Pfr., from which it may be distinguished by 

 its transverse strise, and by being quite imperforate. (Coli. Metcalfe.) 



2. Helix eūryomphala, Pfr. Hel. testd umbilicatd, orbiculato- 

 convexd, tenui, pellucidd, virenti-corned, superne regulariter costu- 

 lato-striatd, lineis concentricis obsolete decussatd, basi remotius 

 striatd, nitidissimd; spird parum elevatd, obtusd ; anfractibus 6 

 convexiusculis, ultimo dilatato, subdepresso, antice non descendente ; 

 umbilico magno, pervio ; aperturd oblique lunato-ovali, intus mar- 

 garitaced ; peristomate recto, simplice, marginibus conniventibus. 



Diam. 37, alt. 17 mill. 



Locality, Cuba. 



To be distinguished from H. laxata, Fer., by the number of its 

 whorls, forming a more elevated spire, by the lašt whorl not deflected 

 and less dilated, &c. (Coli. Cuming.) 



3. Helix micans, Pfr. Hel. testd imperforatd, globosd, tenui, 

 fragili, striatuld, lineis confertissimis obsolete decussatd, diaphand, 

 albidd ; spird parvuld ; anfractibus 4 planiusculis , rapide accres- 

 centibus, ultimo injlato ; columelld tenui, intrante, excavatd ; aper- 

 turd rotundato-lunari ; peristomate simplice, recto, margine dextro 

 antrorsum subarcuato. 



Diam. 28, alt. 19 miU. 



Found at S. Juan, province of Cagayan, island of Luzon, on bushes, 

 by H. Cuming, Esq. 



This shell might easily be taken for an enormous species of Vitrina. 



4. Helix Forbesii, Pfr. Hel. testd umbilicatd, discoided, tenui, 

 oblique confertim striatd, unicolore rufd ; spird planiusculd ; an- 

 fractibus b convexis, ultimo basi convexiore, antice vix descen- 



Nos. CXLVIII. & CXLIX.— Proceedings of the Zool. Soc. 



