﻿CrLINDRELLA.— Plate III. 



Species 22. (Mus. Brit.) 



CVLINDRELLA DENTICULATA. Cljl. tCStd anglistij, at- 



tenuatd, elongatd, fusco strigatd, ad suturam deii- 

 ticulatd, versus spiram contractd, suprd medium et 

 infra rectiusculo, ajUndraceo ; aperturd suboblique 

 jiroductd. 



The denticulated Cylindrella. Shell narrow, at- 

 tenuated, elongated, striped with brown, denti- 

 culated at the suture, contracted towards the spire, 

 rather straight and cylindrical above the middle 

 and below, aperture rather obliquely produced. 



Pfeiffer. Chem. p. 65. 



Hah. Mexico. 



The suture is denticulated with little white points. 



Species 23. (Mus. Brit.) 



Cvlindrella Shdttleworthiana. Gyl. testa elotir/atd, 

 angustafd, cylindraced, subpellueidd, pallide fulvd ; 

 anfractibus subdistanter oblique liratis, superioribus 

 contractis, medianis et inferioribits subagualibus, 

 rectiuscuiis ; ultimo elongato, infra subcaiinato, 

 soluto ; aperturd subtrigond, oblique producid. 



Shuttlewoeth's Cylindrella. Shell elongated, narrow, 

 cylindrical ; rather pellucid, pale fulvous, whorls 

 rather distantly obliquely ridged, the upper ones 

 contracted, middle and lower ones rather equal, 

 rather straight, last elongated, slightly keeled 

 below, loosened ; aperture subtrigonal, obliquely 

 produced. 



PoEY. Chemnitz, p. 18. 



Hab. Cuba. 



Species 24. (Mus. Brit.) 

 i.indrella punctueata. Cgl. testd pupaformi, hrevi, 

 suprd subrosed, infra albidd, medio infato, versiis 

 apicem gradatim contracto ; suturd articulatim 

 punctata; anfractibus rectiuscxdis, ultimo subcon- 

 tracto ; aperturd magiid, suhcontractd, margine 

 rotundo. 



The rrxcTURED Cylindrella. Shell pupa-shaped, 

 short, rather pink above, whitish below, inflated 

 in the middle, gradually contracted towards the 

 apex, suture marked with articulated spots; 

 whorls rather straight, the last a little contracted ; 

 aperture large, somewhat contracted, margin 

 rounded. 



Pfeiffer. Proc. Zool. Soc, 18;V2. 



Hab. St. Domingo. 



Species 25. (Mus. Brit.) 

 Cylindrella Humboldtiana. Cgl. testd sinistrorsd, 



subcglin dried, pallide fulvd, tenuissime striata ; an- 

 fractibus rectiuscidis vei-siis spiram angustaiis ; 



ultimo elongato ; aperturd obliqud, columella uni- 



plicatd. 

 Humboldt's Cylindrella. Shell sinistral, subcylin- 



drical, pale fulvous, very finely striated ; whorls 



rather straight, narrowed towards the spire, last 



elongated ; aperture oblique, with one jjlait on 



the columella. 

 Pfeiffer. Chem. p. 14, t. 2, f 20, 24. 

 Helix columella, Ferr. 

 Hub. Cuba. 



Cylixdrell.' 

 rinwtd, 

 tenuatd 



Species 2G. (Mus. Brit.) 

 MACR0ST05IA. Ci/l. tcstd hrevi, profimde 

 solidd, ciiiij', rtl' fti-iafd, spird sursum at- 

 vicdio it ini'iii .^iihn iitricosd ; anfractibus 

 vi.cconve:ris,vhimv infra sii/in/Uuiiato, basi corinato ; 

 aperturd ovatd, labia alho, incrassato, expanse. 

 The large-mouthed Cy'lindeella. Shell short, deeply 

 notched, solid, closely striated, spire attenuated 

 above, rather ventricose above and below ; whorls 

 scarcely convex, the last a little lengthened below, 

 keeled at the base, aperture ovate, lip white, 

 thickened, expanded. 

 Pfeiffer. Chemn. p. 73. 

 Hab. Jamaica. 



