CHONDKOPOMA.— Plate VII. 



the sutures ; aperture obliquely cii-cular, lip thin, a 



little expanded. 

 Cyclostoma turrUiim, Pfeiffer, Pro. Zool. See. 1851. 



Chondropoma turritum, Pfeiffer. 

 Kah. Houduras ; Dyson. 



Of an obvious acmninately turreted form, with the 

 characteristic net-sculpture of the genus unusually finely 

 woven. 



Species 53. (Mus. Cuming.) 



Chondkopoma kevocatum. Chond. testa modice um- 

 bilicatd, globoso-conicd, Jlavescente, versus apicem 

 earned, pundis rufa oliscitre radiatd, anfractihus rotun- 

 datis, spiraliter granoso-scabrose Jilo-slriatis ; aper- 

 tiird pyriformi-ovatd, subampld, labro teuue expanso. 



The kecalled Chondropoma. Shell moderately um- 

 bilicated, globosely conical, yellowish, flesh-tinged 

 towards the apex, obscurely rayed with red dots, 

 whorls rounded, encircled with granosely scabrous 

 thread-ridges ; aperture pyiiformly ovate, rather large, 

 lip thinly expanded. 



Cyclostoma revocalum, Gundlach, Malak. Blat. 1857, 

 p. 178. 

 Chondropoma recocatuni, Pfeiffer. 



llab. Cuba. 



Distinguished by a light globosely inflated form, pale- 

 yellow or straw-colour, passing towards the apex into 

 Hesh-rose. 



Species 54. (Mus. Cuming.) 



Chondropoma eusarcum. Chond. testa compresse um- 

 bilicatd, ovatd, subventricosd, rubello-strammed,/asciis 

 pallide rnfis interruptis cinctd, anfractibus convexis, 



subtiliterlongUudinalilerfilo-str'udis ; apertard oblique 

 ovatd, subdissolutd, supernti carlnatd, labro teniii, cix 

 reflexo. 



The delicate Chondropoma. Shell compressly uni- 

 bilicated, ovate, rather ventricose, ruddy straw-colour, 

 encircled with faint linear red bands, whorls convex, 

 finely longitudinally thread-striated ; aperture ob- 

 liquely ovate, a little detached, keeled at the upper 

 part, lip thin, scarcely reflected. 



Pfeiffer, Pro. Zool. Soc. 1853. 



Ilab. Island of Haiti ; Salle. 



The most characteristic feature of this species is its 

 light ovate form, with the last whorl ventricose, and pro- 

 portionately larger than usual. 



Species 55. (Mus. Cuming.) 



Chondropoma hakpa. Chond. testa modice umbilicatd, 

 subtubuloso-turritd, pallide cinnamomed, rufescente 

 punctato-fasciatd, anfractibus roiundatis, longitudi- 

 naliter membranacius filo-striaiis, slriis subdistantibus, 

 irregularibus ; apertard oblique circulari, labro refiexo, 

 rosacea. 



The harp Chondropoma. Shell moderately umbilicated, 

 somewhat tubularly turreted, pale cinnamou-colour, 

 dot-banded with red-brown, whorls rounded, longi- 

 tudinally membranaceously thread-striated, striae 

 rather distant, irregular ; aperture obliquely circular, 

 _lip reflected, rose-tinted. 



Cyclostoma harpa, Pfeiffer, Pro. Zool. Soc. 1851. 

 Chondropoma harpa, Pfeifi'er. 



Hab. Havana. 



A very delicate cinnamon-coloured shell, of rather tu- 

 bular growth, in which the striae are like membranaceous 

 threads, irregular and rather distant from each other. 



