tp:rrestrial mollusca inhabiting society islands. 
107 
Genus TAHEITIA, H. and A. Adams. 
Ann. Nat. Hist., 1863, p. 19. 
This genus was established for the reception of those specimens of Truncatella 
characterized by the more or less porrected peristome and the elevated laminte on the 
operculum. The shell is always thinner and the costse more compressed than Trun- 
catella. The lip is sharper, more expanded, and they inhabit a different station, being 
found far inland, and not near high-water mark, as in the latter genus. 
Mr. Pease, in his list of Polynesian shells, erroneously refers T. Vitiensis, Gld., 
to Talieitia. 
T. PORRECTA, Gould. 
Truncatella porrecta, Gould, Proc. Bost. Soc. Nat. Hist., 1846, p. 40; Expl. Ex. Shells, p. 
8, fig. 121. Pfeiffer, Mon. Pneum., ii, p. I. 
Taheitia porrecta, Pease, Proc. Zool. Soc., 1811, p. 4YI. 
Ihis species only occurred to my notice in one location, about one mUe up Papenoo 
valley, Tahiti. 
It is 6 mill, long, pale luteous horn-color, the costae rather distant, and sixteen or 
seventeen on the last whorl. 
T. PALLIDA, Pease. Plate III, fig. 76. 
Taheitia pallida, Pease, Amer. Jour. Conch., 1867, p. 229; Proc. Zool. Soc., 1871, p. 477. 
Truncatella porrecta, Schmeltz (not of Gould), Cat. Mus. Godeff., v, p. 104. 
'Truncatella pallida, Schmeltz, 1. c., p. 208. Pfeiffer, Mon. Pneum., iv, p. 20. 
Very abundant in the lowland forests, and is generally distributed throughout the 
group. I have found them half a mile inland associated with Helices and cyclosto- 
moid shells. 
It is larger and not so much porrected as the preceding species. 
Genus ASSIMINEA, Leach. 
A. NiTiD.A., Pease. 
Hydrocena nitida. Pease, Proc. Zool. Soc., 1864, p. 674. 
Assiniinea nitida. Pease, Jour, de Concli., 1864, p. 165, PI. YII, fig. 11 ; Proc. Zool. Soc., 
1871, p. 476. Schmeltz, Cat. Mus. Godefi'., v, p. 103. Garrett, Proc. Acad. Nat. Sci. 
Phil., 1879, p. 29 ; Jour. Acad. Nat. Sci. Phil., 1881, p. 408. 
f Realia nitida, Pfeiffer, Mon. Pneum., iv, p. 212. 
Hydrocena parvula, Mousson, Jour, de Conch., 1865, p. 184; 1873, p. 108. 
Omphalotropis parvula. Pease, Jour, de Conch., 1869, p. 155; Proc. Zool. Soc., 1871, p. 476. 
Paetel, Cat. Conch., p. 124. 
Assiminea parvula. Pease, Proc. Zool. Soc., 1871, p. 476. Schmeltz, Cat. Mus. Godeff., v, 
p. 103. 
Realia parvula, Pfeiffer, Mon. Pneum., iv, p. 213. 
Assiminea lucida. Pease, Jour, de Conch., 1869, p. 166, PI. VII, fig. 10; Proc. Zool. Soc., 
1871, p. 476. 
Assiminea ovata, “Pease,” Schmeltz, Cat. Mus. Godeff., v, p. 103. 
Hydrocena similis, Baird, Cruise of the Curacoa. 
Generally distributed throughout southern Polynesia. For further information in 
regard to this species, see my paper on the Cook’s Island shells. 
