﻿CYLINDRELLA.— Plate XVI. 



Beakdsley's Cylindrella. Shell pale brown, finely 

 ridged, somewhat pyramidal ; whorls nine, rather 

 convex, gradually increased, ridges numerous, 

 curved, interstices wider. 



C. B. Adams. ? 



Ilab. Jamaica. 



Species 141. (Mus. Brit.) 



Cylindeella Tuekaslana. Ci/l. testa fusiformi, an. 

 gusid, semijjellucidd, Imvi, pallide succined ; an- 

 fraclihus septemdecetiis, SH'perioribiis inf&riorihus- 

 qiir iitfi'iniiifix, iiiril iiiiiis svMiiflatis, ultimo lon- 

 i/is:fii,i,'' xf. /»/.■. 'h'r/iri, nigato, iortuoso ; aperturd 

 par,-,!, di6tantls,u,i,l. 



The Tuecasian Ctlindrella. Shell fusiform, nar- 

 row, semipellucid, smooth, pale amber ; whorls 

 seventeen, upper and lower attenuated, middle 

 a little inflated, last with a long piece unwound, 

 sloped downward, wrinkled, twisted ; aperture 

 small, very distant. 



GuNDLACH. Pfeiffer. Mon. Helic. VI. p. 38-3. 



LcsraUei. Gundlach ? 



Hah. Monte Toro, Cuba. 



Shuttleworth. Pfeiffer. Mon. Hoi. VI. p. 3(J8. 

 Hah. Cuba. 



Species 143. (Mus. Brit.) 

 Cylindeella PUPa;roEMis. Cyl. testa Irevi, Imvi, cylin- 

 ilricd, semipelhio'dd, alba, vel casianed ; anfrac- 

 tihiif pennuncntilms senix, Irevibus, convexis ; 

 vHiiihi hrt'i-ifer snhil.i, upertnrd subdistanti,magnd, 

 iiianjinr cra.s-.s-,,, i^uhrotiunlo. 



The I'UPA-sHAPED Cylindeella. Shell short, smooth, 

 cylindrical, semipellucid, white or chestnut ; 

 permanent whorls six, short, convex ; last with 

 short unwinding; aperture rather distant, large, 

 margin thick, rather rounded. 



C. B. Adams. Pfeiffer, Mon. Helic. VI. p. 370. 



Hah. Jamaica. 



Species 142. (Mus. Brit.) 



Cylindeella Rdgeliana. Cyl. testa parvd, angusfe 

 piiramidatd, opacd, fulvd, distanter strigatd; an- 

 fi-aatibas qtiaterdecenis, tenuiter acute liratis, 

 hrevissimis ultimo longh soluto, tortuoso ; aperturd 

 parvd, distanti ; apice attenuato, acumdnato. 



RoGELi's Cylindeella. Shell small, narrowly pyra- 

 midal, opaque, fulvou.s, distantly striped ; whorls 

 fourteen, finely, acutely ridged, very short, last 

 with long portion unwound, twisted ; aperture 

 .small, distant ; apex attenuated, acuminated. 



Species 144. (Mus. Brit.) 



Cylindeella uncata. Cyl. testa cylindricn, soUdius- 

 nild, latiiisciila, pallide corned, medio paulb in- 

 flato ; anfractibus undecenis, brevihm, siibdis- 

 ianter liratis ; ultimo subangustato, soluto, versus 

 aperturam coarciato ; liris anfractuum ad suturam 

 supra ivfriique quasi uncinatis, ai>erturd distant/, 

 subtrigond. 



The hooked Cylindeella. Shell cylindrical, very 

 solid, rather broad, pale horn ; a little inflated 

 in the middle ; whorls eleven, short, rather dis- 

 tantly ridged, last rather narrow, unwound, 

 contracted towards the aperture ; ridges of the 

 whorls, as it were, hooked at the suture above 

 and below ; aperture distant, subtrigonal. 



Gundlach. Pfeiffer. Mon. Helic. VI. p. 382. 



Hah. Tateras, Cuba. 



The tubercles formed at the sutures on the ridges 



have the appearance of little hooks. 



