SOWERBT : ON AMPDLLARIID^. 351 



Yar. Oronocensis, Eeeve. 

 A. Oronocensis, Reeve: Conch. Icon., sp. 45. 

 Hah. — E,iver Oronoeo. 



Var. cuPEiNA, Reeve. 

 A. cuprina, Reeve: Conch. Icon., sp. 1. 

 Hab.—'^. (Reeve). 



40, Ampullaria Gossei, Reeve. 

 Conch. Icon., sp. 93. 

 Hob. — Jamaica. 



41. Ampullaria granulosa, Sowerby. 

 Proc. Malac. Soc, 1894, vol. i, p. 48, pi. iv, fig. 22. 

 Ilah. — Cayenne (Eudel). 



42. ^Ampullaria Guyanensis, Lamarck. 

 Anira. s. Vert., 1819, vol. vi, p. 176. 



Hah. — Guyana. 



This name has erroneously been placed in the synonymy of 

 A. glauca, with which it has no affinity. It is more nearly related 

 to A. tirceus. 



43. Ampullaria haustrum, Reeve. 

 Conch. Icon., sp. 23. 



Hah. — River Maranon, Brazil (Reeve). 



Var. iMMEKSA, Reeve. 

 A. immersa, Reeve : Conch. Icon., sp. 52. 

 Hah. — Rio Grande, Bolivia. 



44. Ampullaria hepataria. Reeve. 

 Conch. Icon., sp. 77. 



Hah.—? 



Nevill unites this with A. glohosa, Swainson, but it surely belongs 

 to the Western Hemisphere, and may possibly prove to be one of 

 the numerous forms of A. Hopcionensis. 



45. Ampullaria Hopetonensis, Lea. 



Trans. Phil. Soc, 1839, vol. v, pi. xix, fig. 84. 



A. depressa, Say: Exped. St. Peter's River, 1824, vol. ii, p. 264 {non 

 Lamarck, 1822). 



Hah. — Georgia, Florida, Hopetown, etc. 



The name is rather unfortunate for this very variable and widely 

 distributed species, but the law of priority compels its adoption. 



The following I regard as synonyms and varieties, though others 

 may still continue to regard some of them as distinct species. In 



' A. erythrostoma and hcemastoma of Reeve are synonyms ; see note, p. 363. 



