﻿CYLIXDRELLA. 



I'l.ATE XIII. 



Species 114. (Mns. Brit.) 



CVLINDKELLA PEXn'ERIANA. Cl/I. tcsld hri'fi nacitld, 

 soliild, cyUudricd, alhidd; avfractihii^ prrniaiiiiili- 

 biis septenis, leidusime crescent ilm a, iiiuhihitim 

 costaiis ; inter castas angulaiim li inuliilnlim 

 irregulariter sctdptis ; ultimo siibaiiijuslalo, rimata, 

 aperttcrd ohiiqui swbovatd, margine dnpjicalo. 



FiiTivEK's Cylindrella. Shell rather short, solid, 

 cylindrical, whitish ; permanent whorls seven, 

 very slowly increased, with wavy ribs, angularly 

 and wavily sculptured between the ribs ; last 

 rather angular, notched ; aperture (]bll([iicly 

 subovate, margin doulile. 



Fkuu;;ssac. Pfeiffer. :^lon. Vol. VI. ji. '.m. 



ILib. Antilles. 



Species \1'>. (Fig. a, h, Mns. Brit.) 



CVLINDRELLA CLAVA. Cffl. testd SUCcitieO-fuSCd SCll 



albidd, tenui, aUissimd, graciliforvti,swpra medium 

 gradatim attenuatd; anfractibus depressis, tenuis- 

 sime striatis, permanentibus viginli, deciduis 

 decerns, ultima infra angulato, longe rimato, soliito; 

 ajierturd gnldisla/iti, iiblique ovatd, siipcrtie siib- 

 aciiiniuiitd. 



The kky Cyi.indrei.la. Shell amber brown or whitish, 

 thin, much raised, slender, gradually attenuated 

 above the middle ; whorls depressed, very finely 

 striated, twenty permanent, ten deciduous, last 

 angular below, with a long notch ; aperture 

 i-ather distant, obliquely ovate, slightly acu- 

 minated above. 



Pkkii-fer. Mon. Vol. VI. p. :3G."). 



Hab. Chiappa, Mexico. 



Species IIG. (Mus. Brit.) 



CyLINDRELLA LeIBMASXI. Ci/1. fe^ld xoliJd, r,')itrir.o- 

 sisdmd, hnvigatd, jiaridn-coffed, pnpe sulHras 

 densiori; anfractibus pe)-manentibus octonis, con- 

 vexis, medio latiii.timis ; supra iiifrdque gradatim 

 angustioribus, ultimo rimato ad apcrtaram, paulb 

 soluto ; aperturd obliquii pi/riforini, snperne sub- 

 acuminatd. 



Leiumann's Ctlindrei.la. Shell solid, very ventricose, 

 smooth, yellowish-coffee, more dense at the 

 sutures ; permanent whorls eight, convex, very 

 wide in the middle, gradually narrower above 

 and below ; last notched at the aperture, a little 

 unwound ; aperture obliquclj- pyriform, slightly 

 acuminated above. 



Pfeiffer. Mon. II. p. 370. 



Hab. Mexico. 



Species 117. (:\lns. Brit.) 

 CyLIXDRELI.A Ti;ia:IS. C//I. t,:<t,'i nlld. vi'iifrico 

 siiperni- ollcm,,,!,;. rujf,;!. tr,unl, rsln',,!,!: aii/ni. 



bus ciri 



■ ril.i,, dr,.Jrr;,„ .mI,,:,/,!,,!, 



bH.'',r,ri;!,,l,rai;i,ii.<. talis: allimn lru„r,dn, niaata: 

 aprrtara a f,, .,-,>.■ naald , s„t„.t.li.pa! , tat.!, cotnaicltd 

 lata, infra ra wltirntat a . 



The tower C!yi,l\1)Kki,ea. Shell high, ventricose, 

 attenuated abo\-e, coffee-coloured, finely striated : 

 whorls about thirty, lower twelve rather equal, 

 straight-sided, broad ; last truncated, notched ; 

 aperture near, rather oblique, broad, columella 

 bi-oad, with a channel below. 



Pfeiffer. Mon. IV. p. (390. 



Hal/. Chiappa, Mexico. 



Species lis. (Mus. Brit.) 

 CyLISDRELLA BorcARl'l. ''///. Ifstd alia, cijlindrivd, 

 sut,a;,naliter c-Hlri. ;,.<,;. slraiiiiara ; ain'rarlihiis 



„rn„anr„/ihHs ,a. 



illis, i;-ci;iatr,-aUla,s, id- 



iqajr 



super nti subacumiuatd. 



Bodcard's Cylindrella. Sliell high, cylindrical, 

 rather equally ventricose, straw ; permanent 

 whorls nine, high, rectilateral, last contracted 

 below, notched, arched above the margin of tlie 

 aperture; aperture obliquelysubpyriform, slightly 

 acuminated above. 



Salle. Proc. Zool. Soc. D-'Sf., T. XXXIII, f. I. 



Hah. Cordova and Orizaba, ]\Iexico. 



