C H N D R P ]M A . 



Plate VII. 



Species 48. (Mus. Cuming.) 



CllONDROPOMA ARGUTUM. Clioiid. testd minule compresse 

 umbilicald, anr/uste (iirrifd, solidiitsculd, sordide alia, 

 aiifracti/iiis convexls, conspicue spiraliter carinato-coa- 

 taiis, inlersl'dm excavutis ; apertnrd parvd, circiilari, 

 subdissolutd, labro simplici. 



The neat Chondkopoma. Shell minutely compressly 

 umbilicated, narrowly turretcd, rather solid, dead- 

 white, whorls convex, eonspicuously spirally keel- 

 ribbed, with the interstices excavated ; a])ertm'e small, 

 circular, a little detached, lip simple. 



Pfeiffer, Monog. Pneum. Suppl. 1. p. 138. 



Hab. ? 



This shell is of quite a distinct type. The sculpture is 

 like that of a sea shell, strong encircling keel ribs, exca- 

 vated in the iuterstices like those of many species of 

 Pleui-otoma. 



Species 49. (Pig. a, b, Mus. Cuming.) 



Chondeopoma crexulatum. Chond. testd compresse 

 umbilicald, oblonyo-turrlld, fidvd, uslidato-casluneo 

 varle drigatd et tiebulald, anfractibus convexis, longl- 

 tudiiialiter scabrose Jilo-striatis, ad siitiiras crenidatis ; 

 aperturd oblique circidari, labro tenni, siibexpa?iso. 



The crenulated Chondropoma. Shell compressly imi- 

 bilicated, oblong-tmTcted, fulvous, variously streaked 

 and clouded with burnt chestnut, whorls convex, 

 longitudinally scabrously thread-striated, crenulated 

 at the sutures ; aperture obliquely circular, lip thin, 

 a little expanded. 



Ci/clostoma creindatum, Ferussac, Pot. et Mich. Gal. Douai, 

 vol. i. p. 235. pi. 24. ff. 3, 4. 

 Cyclostoma nodulosinn. Gray. 

 Vi/clostoiiia Gnadaloupense, Pfeiffer. 

 Chondropoma Guadaloupeuse, Pfeili'er. 

 Choiidropoiiia crennlalnm, Pfeifl'er. 



Hab. Guadaloupe ; Petit. 



A swarthy clouded shell, in which the sutural creuula- 

 tious are white, aud therefore rather conspicuous. 



Species 50. (Mus. Cuming.) 



Chondropoma Saxtacruzense. Chond testd com- 

 presse umbilicald, oblongo-turritd, tenuicidatd, aitrantio- 



rttbelld, castaneo minute punctato-fasciatd, anfractibus 

 convexis, subventricosis, dense scabrose lainelli-striatis ,■ 

 aperturd obliqae circulai-i, labro tetiid, subexpanso. 



The Santa Cruz Chondropoma. Shell completely 

 umbilicated, oblong-turreted, rather thin, oraugc-reil, 

 minutely dot-banded with chestnut, whorls convex, 

 slightly ventricose, closely scabrously lamella-stri- 

 ated ; apertm-e obliquely circular, lip thin, a little ex- 

 panded. 



Pfeiffer, Malak. Blat. 1855, p. 101. 



Hab. Island of Santa Cruz, West Indies. 



Beautifully sculptured with a close succession of longi- 

 tudinal lamella-like strise, sharp and scabrous at the edge. 



Species 51. (Fig. a,b, Mus. Cuming.) 



Chondropoma textum. Chond. testd compresse umbili- 

 cald, conico-larritd, solidiusculd, pallide stramined, 

 sparse obscure rufu-punclatd, anfractibus declici-cou- 

 vexis, dense reticulatim Jilo-striatis, ad suturas crenu- 

 lalis ; aperturd circulari-ovatd, labro calloso-fmbriato. 



The woven Chondropoma. Shell compressly umbili- 

 cated, conically turreted, rather solid, pale straw-co- 

 lom-, sparsely obscurely red-dotted, whorls slopingly 

 convex, closely reticulately thread-striated, crenidated 

 at the sutures ; aperture circularly ovate, lip callously 

 fimbriated. 



Gundlach, Malak. Blat. 1802. 



Hab. Cuba. 



A very characteristic straw-coloured shell, of rather 

 solid growth, with a prominent callously fimbriated aper- 

 ture. 



Species 52. (Mus. Cuming.) 



Chondropoma turritum. Chond. testd compresse um- 

 bilicutd, acumiualo-turrild, fulcd, fasciis rufo-fuscis 

 hnearibus inlerruplis cincld, anfractibus rotundatis, 

 minute reticulatim Jilo-strialis, ad suturas crenulatis ; 

 aperturd oblique circulai'i, labro tenui, subexpanso. 



The turreted Chondropoma. Shell compressly um- 

 bilicated, acuminately turreted, fulvous, encircled with 

 interrupted linear red-bro^vn bands, whorls rounded, 

 minutely reticulately thread-striated, crenulated at 



January, 18C3. 



