604 NOMENCLATURE AND DISTRIBUTION OF TIIE GENUS PYTHIA. 



I have had specimens of this species in my collection for many 

 years, collected by Mr. Eossiter, at the Island of Guam. 



26*** Pythia leoparda, Reeve. 



Scarabus leopardus, Eeeve, in Conchologia Iconica, 1860, Vol. 

 xii., Monograph Scarabus, Sp. 14, pi. ii., fig. 14; in Gassies, 

 Faune Conchyliologique Terrestre et Fluvio-lacustre de la 

 Nouvelle Caledonia, p. 55, pi. iii., fig. 5, 1863, part 2nd 1871, 

 p. 100. 



Pythia leopardus, Pfr., in Mon. Auriculaceorum, 1876, p. 342. 



Habitat. Island of Tuo, New Caledonia, Gassies. Eeeve 

 acknowledges that this species is founded on very slight characters 

 and if his figure is compared with that of Gassies, it is evident 

 that two distinct species are figured. Eeeve's figure is only an 

 intermediate form between undata and his representation of 

 petkeriana ; undata again passes into mix, imperforata and 

 borneensis. The figure given of it by Gassies passes by too easy 

 gradation into nux, imperforata, borneensis, undata and crosseana. 

 A gradual gradation from one to the other is very manifest, I 

 have specimens of mix before me which so thoroughly illustrate 

 this gradation that I doubt if any of these species should stand 

 except the one whose name has priority. 



27** Pythia lentiginosa, Garrett. 



Pythia lentiginosa, Garrett, in American Journal of Conchology 

 1872, Vol. vii., p. 4, p. 220, pi. 19, fig. 4 ; Schmeltz, Catalogue 

 of Museum Godeffroy, No, v., 1874, p. 87 ; G. Neville, Hand 

 List of Mollusca in the Indian Museum at Calcutta, 1878, p. 222. 



Habitat. Taviuni Island, Viti Islands Garrett ; Savinni Island 

 Neville, on the authority of Godeffroy — probably intended for 

 Savii Island, Samoan Iislands. 



28*** Pythia Macgillivrayi, Pfeiffer. 



Pythia Macgillivrayi, Pfr., in Proceedings of the Zoological 

 Society of London, 1854, p. 298 ; Pfr. in Mon. Auric. Viv., 1856, 



