4 



21. C. occidens Benson Bengal. 



ex auct. (fide Cuming.) 



22. C. Bengalensis Deshayes Bengal. 



ex auct. (fide Cuming.) 



23. C. parvula Prime India. 



24. C. subradiata Prime Agra, India. 



INSULAR SPECIES. 



25. C. pulehella Deshayes Tykoya, Java. 



26. C. duealis Prime Java. 



27. C, gracilis Prime Java. 



28. C. rivalis Deshayes Java. 



29. C. Manillensis Prime Manilla. Java. 



30. C. tumida Deshayes Bengal. 



ex auct. (fide Cuming.) 



31. C. Cumingii Deshayes Borneo. 



ex auct. (fide Cuming.) 



32. C. venustula Prime Philippines. 



33. C. notata Prime Philippines. 



34. C. minor Prime Australia. 



35. C. Australis Deshayes Australia. 



36. C. prolongata Prime Eastern Australia. 



37. C. Angasi Prime Murray river, South 



Australia. 

 Angas collect. 



AFRICAN SPECIES. 



38. C. cor Deshayes Africa. 



38. a. Cyrena consobrina Call. . The Nile. 



39. C. inaequilateralis Prime Africa. 



40. C. pusilla Deshayes The Nile. 



41. C. radiata Deshayes The Nile. 



42. C. Africana Deshayes Africa. 



SPECIES THE HABITAT OF WHICH IS NOT KNOWN. 



43. C. pexata Prime ? 



44. C. difficilis Prime ,.. ? 



45. C. squalida Deshayes ? 



ex auct. (fide Cuming.) 



46. C. mediocris Prime t? 



47. C. solidula Prime ? 



48. C. triangularis Defehaycs ? 



ex auct. (fide Cuming.) 



49. C. purpurea Prime ? 



