182 BULLETIN OF THE 



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



f P. expaksa 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 this species 

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



P. externa Pse., P. Z. S., p. 473, 1871. This is an error in name for P. ex- 

 pansa. See Pfr. Mon. Helic, vhi. p. 204. 



f P. faba Martyn (Limax), 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. 



f P. filosa Pfr., P. Z. S., p. 262, 1851. Tahiti, Garr. Navigator's Isls., Cox. 



j P. Formosa Pse. Mss., Coll. Pse. Raiatea, Garr. This shell is common in col- 

 lections, aud 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. 



f 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, which 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, anil all 

 inhabit the island of Raiatea. 



f 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. 



f P. Garrettit Pse., P. Z. S., p. 672, 1864. Raiatea, Garr. 



f P. gibba Fer., Prod., p. 66, No. 3, 1822; also Conch. Icon. Mon. Part., 

 species 15, f. 15 a , 15 b . Island Guam. 



f l\f/lobosa Pse. Mss., Coll. Pse., Mus. Godeff. 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. 



f 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 shell docs nut agree with specimens of P. gonocheila in the British Museum, 

 or with the liu r ure of P. gonocheila in Chemnitz. I am at a los> to aocouul for 

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

 he considered better specimens for those already in tin- British Museum .collection. 

 My shells are certainly 1'. Ganymedes. 



f P. graeUu Pse., A. J. C, ii. p. 197, iii. p. Si. pL 1. f. 3, 1S66-G7 = 

 P. attenuata. 



