182 BULLETIN OF THE 



P. Erhelii Morelet, J. C, iv. p. 371, pi. 12, f. 7, 8, 1853. Moorea = simulans ? 



t P. EXPANSA Pse., A. J. C, vii. p. 26, pi. 9, f. 3, 1871. Tutuila, Brazier, type 

 in A. N. S. ex auctore. An examination of the animal and embryo of tliis species 

 is necessary to establish its claim to a pliice in the genus Partula. 



P. externa Pse., P. Z. S., p. 47J^, 1871. This is an error in name for P. cx- 

 pansa. See Pfr. Men. Helic, viii. p. 204. 



f P. FABA Marlyn (Liraax), Universal Conch., ii. p. 67, central figs., 1784. 

 Raiatea, Garr. 



f P. fasciata Pse., A. J. C, ii. p. 202, 1866. Marquesas, Garr. = P. Gany- 

 medes small var. 



t P. FILOSA Pfr., P. Z. S., p. 262, 1851. Taliiti, Garr. Navigator's Isls., Cox. 



\ P. FORMOSA Pse. Mss., Coll. Pse. Raiatea, Garr. This shell is common in col- 

 lections, and by Cuming was considered to =: P. dentifera. It is a much larger 

 and finer colored shell than P. dentifera, from which it is doubtless distinct. The 

 latter is always much smaller, of a greenish-yellow color, with a yellow apex, 

 while P. formosa is always pale reddish, or orange red, with a dark red apex. 



t P. FUSCA Pse., A. J. C, ii. p. 193, 1866. Raiatea, Garr. The types of 

 P. fusca in the Museum of Comparative Zoology are young, immature shells, and 

 = P. ovalis and P. lugubris, as generally found in collections. When large quan- 

 tities of the above species are compared with P. protea Pse., they may be arranged 

 in the following order, from the junior to the adult shell : P. lugubris = P. ovalis 

 = P. protea = P. fusca. Some well-grown P. fusca are as large as examples of 

 P. faba, whicii they somewhat resemble. In the Smithsonian collection, P. fusca 

 is marked as equalling P. faba. This, however, is an error, as P. faba is arboreal, 

 while P. fusca is terrestrial. These varieties of P. fusca are all terrestrial, and all 

 inhabit the island of Raiatea. 



t P. Ganymedes Pfr. (Bui.), P. Z. S., p. 39, 1850; also Conch. Icon. Mon. 

 Part., species 16, pi. 3, f. 16, 1846. Dominique, Marquesas, Garr. 



t P. Garrettii Pse., P. Z. S., p. 672, 1864. Raiatea, Garr. 



t P. GiBBA Per., Prod., p. 66, No. 3, 1822 ; also Conch. Icon. Mon. Part., 

 species 15, f. 15* , IS* . Island Guam. 



t V.fflohosa Pse. Mss., Coll. Pse., Mus. Gode£F. Cat., v. p. 207. Raiatea, 

 Garr. = P. Hebe var. 



f P. GLUTiNOSA Pfr., P. Z. S., p. 85, 1852. Navigator's Islands, Solomon's 

 Island, Cox. 



t P. gonocheila Pfr. (Bui), Zeit. fur Malacol., p. 82, 1847 ; also Conch. Icon. 

 Mon. Part., species 19, pi. 4, f. 19, 1850 =: P. Ganymedes. I possess a shell said 

 to be from Dominique, the exact counterpart of Reeve's figure, color included. 

 This sliell does not agree with specimens of P. gonocheila in the British Museum, 

 or with the figure of P. gonocheila in Chemnitz. I am at a loss to account for 

 the discrepancy, unless it is to be found in a habit of Cuming, substituting what 

 he considered better specimens for those already in the British Museum collect i(ju. 

 My shells are certainly P. Ganymedes. 



t P. gracilis Pse., A. J. C, ii. p. 197, iii. p. 81, pi. 1, f. 3, 1866-67 = 

 P. attenuata. 



