CHONDEOPOMA.— Plate III. 



bus decUvi-convexls, longitudinaUter minute filo-striatis, 

 striis ad sutu?-as auriculalis ; aperturd oblique ovaid, 

 superue carinatd, labro vex reflexo. 



Blauner's Chondeopoma. Shell compressly umbili- 

 rated, ovately tuiTeted, rather thin, violet-brown, ob- 

 scurely marked with chestnut-browu waved streaks 

 and bands, whorls slopingly convex, minutely longi- 

 tudinally thread-striated, stria; auriculated at the su- 

 t\n'es ; aperture obliquely ovate, keeled at the upper 

 part, lip scarcely reflected. 



CijdoKloma Blauiim, Shuttleworth, Diag. MoU. No. 7. 

 p. 151. 



Hah. Island of Porto Rico. 



( )f a peculiar swarthy violet-brown, obsciu-ely painted 

 with chestnut neatly-waved streaks and bands. 



Species 20. (Mus. Cuming.) 



CnoNDKOPOMA PLICATULUM. Chond. testa compresse 

 umbilicatd, subacuminato-turritd, diapliano-albd, cas- 

 taneo-fusco interrupte strigatd et fasciatd, anfractibus 

 rotuudatis, lonyitudinaliter dense filo-liratis ; aper- 

 tnrd oblique circulari, subsolutd, superne carinatd, 

 labro vix rejiexo. 



The finely-plaited Chondropoma. Shell com- 

 pressly umbilicated, rather acuminately turreted, dia- 

 phanous-white, inteiTuptedly streaked and banded 

 with chestnut-brown, whorls rounded, longitudinally 

 densely thread-ridged ; aperture obliquely circular, a 

 little detached, keeled at the upper part, lip scarcely 

 reflected. 



Cydostoma plicatulum, Pfeift'er, Zeitschr. fiir Malac. 1846, 

 p. 48. 

 Chondropoma plicatulum, Pfeift'er. 



Hab. Venezuela. 



Kather more slenderly tubularly turreted than any of 

 the previous species, painted with chestnut bands and 

 streaks in a very characteristic inteiTupted manner. 



Species 31. (Mus. Cuming.) 



Chondropoma Swifti. Chond. testa compresse umbili- 

 catd, ovato-conicd, albidd, rvfo-fusco copiose punctalo- 

 fasciatd, anfractibus convexis, longitudinaliter dense 

 filo-liratis, liris ad suturas liic illic auriculatis ; 

 aperturd oblique ovatd, superne carinatd, labro ienui, 

 vix reflexo. 



.Swift's Chondropoma. Shell compressly umbilicated. 



ovately conical, whitish, copiously dot-banded with 

 red-brown, whorls convex, longitudinally closely 

 thread-ridged, ridges here and there auriculated at 

 the sutures ; aperture obliquely ovate, keeled at the 

 upper part, lip thin, scarcely reflected. 



Cyclostoma Swifti, Shuttleworth, Diag. Moll. n. 7. p. 1.51. 



Hab. Porto Rico ; Swift. 



A thin semidiaphanous shell, copiously encircled with 

 bands of pale red-browii dots. 



Species 22. (Mus. Cuming.) 



Chondropoma Ottonis. Chond. testa compresse umbi- 

 licatd, ovato-conicd, sordid^ alba, subdiaphand, pallide 

 fuscescente obscure fasciatd, anfractibus rotundatis, 

 minute scabroso-decussatis ; aperturd parviusculd, ro- 

 tundatd, late fimbriatd. 



Otto's Chondropoma. Shell compressly umbilicated, 

 ovately conical, dull-white, subdiaphanous, faintly 

 banded with light-brown, whorls rounded, minutely 

 scabrously decussated; aperture rather small, rounded, 

 broadly fimbriated. 



Ci/clostoma Ottonis, Pfeiffer, Zeitschr. fiir Malak. 184G, 

 p. 45. 



Chondropoma Ottonis, Pfeift'er. 

 Cyclostoma petricosum, Morelet. 



Hab. Cuba. 



A dull obscurely-banded shell, of scabrous surface, the 

 whorls being rather tubular. 



Species 33. (Mus. Cuming.) 



Chondropoma obesum. Chond. testa compresse umbi- 

 licatd, oblon(jo-conicd, fulvo-luted vel rubicundd, an- 

 fractibus rotundatis, liris fiUformibus cingulaiis, liris 

 striis miimtis scabrosis longHudinaliter decussatis ; 

 aperturd parvd, oblique ovatd, labro simplici. 



The stout Chondropoma. Shell compressly umbili- 

 cated, oblong-conical, fulvous yellow or ruddy, whorls 

 rounded, encircled with thread-like ridges, ridges 

 crossed longitudinally by minute scabrous striEe; aper- 

 ture small, obliquely ovate, lip simple. 



Truncatella obesa, Menke, Syn. ed. 3. p. 137. 

 Cyclostoma obesum, Pfeift'er. 

 Chondropoma obesum, Pfeift'er. 



Hab. Cuba. 



A very delicate ruddy fulvous shell, most exquisitely 

 sculptured with minute scabrous striae. 



