leptopoma. 23 



35. Cyclophorus rufescens. 



Cyclost. rufescens Sow. Thes. Conch, i. 94. n. 11. t. 24. f. 36, 37. ; 



Pfeiffer, Kuster, Chemn. Conch. Cab. i. 19. t. 12. f. 16—18. 

 Cycloph. rufescens Pfeiffer, 1. c. 108. n. 36. 



a — c. Martinique. 



36. Cyclophorus disjunctus. 



Cyclost. disjunctus Moric. 



Cycloph.? disjunctus Pfeiffer, 1. c. 108. n. 39. 



Hab. ? 



37. Cyclophorus parvus. 



Cyclost. parvum Sow. Thes. Conch, i. 101. n. 29. t. 31. f. 254, 255.; 

 Pfeiff. I.e. 105. n. 14. ; Kuster, Chemn. Conch. Cab. i. 19. t. 13. 

 f. 15, 16. 



a — c. Philippine Islands. 



38. ? Cyclophorus Cytora. % 

 Cyclostoma Cytora Gray, Proc. Zool. Soc. 1849. 



a. New Zealand. Presented by Major Greenwood. 



7. LEPTOPOMA. 



Operculum membranous, closely whorled, flat. — Shell globose, 

 turbinated, or conical ; narrowly umbilicated. Peristome 

 simple, reflexed ; with distant margins, joined sometimes by a 

 very thin callus. 



Lentopoma Pfeiffer in Merike und Pfeiffer, Z.f Malak. 1847, 47. 

 108. 



§ Subglobose. 

 * Whorls rounded, not keeled. 



1. Leptopoma perlucidum. 



Cyclost. perlucicla Grot. Act. Soc. Linn. Bord. xi. 442. t. 3. f. 13. 

 Cyclost. perlucidum Pfeiffer, Kuster, Chemn. Conch* Cab. 19. 



n. 11. i. 19. t. 2. f. 5—10. t. 16. f. 8. 

 Cyclost. concinnum Sow. Proc. Zool. Soc. 1843, 61., Thes. Conch. 



i. 134. n. 122. t. 29. f. 223, 224. ; De Less, Recueil, t. 38. f. 14. 

 Cyclost. multilineata Jay, Cat. of Shells, 1839, 123. t. 7. f. 12, 13. ? 

 Lept. perlucidum Pfeiffer, 1. c. 108. n. 4. 



a — h. Philippine Islands. From the Collection of Mr. 



Cuming, 

 t. Philippine Islands. Yar. From the Collection of Mr. 



Cuming. 



