394 FAUNA HAWAIIENSIS 



Ancylus, Geoffroy. 



Ancylus Geoffroy, Traite sommaire des coquilles, aux environs de Paris, 



1767, p. 122 [type apparently A. lacusiris]. 



Ancylus sharpi sp. nov. 



Testa pygmaea, convexiuscula, hyalino-flavida ; apertura elongato-elliptica, apice 

 obtusulo. Long. 2; lat. ri ; alt. "8 mill. 



Plate XII. figs. 14, 14 a. 



An insignificant little form with no striking characters ; there being no other 

 species recorded from the Islands, I venture to give these shells a name ; they are 

 probably not adult. 



Hab. Oahu, on pali, head of Nuuanu Valley (Coll. Dr B. Sharp, commisit 

 H. A. Pilsbry). 



Fam. MELANIIDAE. 



Melania Lamarck. 



The genus appears to have been first put forward by Lamarck in 1799 (Mem. 

 Soc. Hist. Nat. Paris, p. 75) and to have been also characterised by him in 1801 (Syst. 

 An. sans Vert. p. 91). In both cases the species named by him was Melania amarula 

 Lam., which is therefore the type. 



(i) Melania baldwini Ancey. 



Melania baldiuini Knay, P. Malac. Soc. London, in. (July, 1899), p. 273, pi. xii. 

 fig. 6. 



Hab. Maui, Lahaina (Ancey). 



(2) Melania indefinita Lea. 



Melania indefinita Lea, P. Zool. Soc. London, 1850, p. 187; Reeve, Conch. 



Icon. Melania, fig. 56 ; Brot, Conch. -Cab. Melania, pi. xxiii. fig. 7. 

 Melania newcombii Lea, Pease, Amer. J. Conch, vi. p. 6 [nee Lea, fide Brot]. 



Hab. Oahu (Pease). 



The Philippine specimens in coll. Cuming seem identical with some from Oahu, 

 named M, newcombii by Pease. 



