84 TERRESTRIAL MOLLUSCA INHABITING SOCIETY ISLANDS. 
Vertigo pediculus, Pfeiffer, Vers., p.177. (Ala#a) H. and A. Adams, Gen. Moll., ii, p. 172. 
Mousson, Jour. de Conch., 1869, p. 841. Pease, Proc. Zool. Soc., 1871, pp. 4638, 474. 
Garrett, Proc. Acad. Nat. Sci. Phila., 1879, p. 19; Jour. Acad. Nat. Sci. Phila., 1881, 
p- 400. 
Pupa Samoensis, “‘ MSS.” Schmeltz, Cat. Mus. Godeff., iv, p. 69. (Sphyradiwm) Paetel, Cat. 
Conch., p. 108. 
Pupa nitens, Pease, Proc. Zool. Soc., 1860, p. 489. Pfeiffer, Mon. Hel., vi, p. 335. 
Vertigo nitens, Pease, Proc. Zool. Soc., 1871, pp. 463, 474. 
Pupa hyalina, “ Zelebor” Pfeiffer, Mon. Hel., vi, p. 329. 
Vertigo hyalina, Pease, Proc. Zool. Soc., 1871, p. 474. 
2Vertigo nacca, Gould, Proc. Bost. Soc. Nat. Hist., 1862, p. 280; Otia Conch., p. 237. Pease, 
Proc. Zool. Soc., 1871, pp. 463, 474. , 
Pupa nacca, Pfeiffer, Mon. Hel., vi, p. 330. 
With the exception of Stenogyra Tuckeri, this minute shell has the widest range 
throughout Polynesia of any species. 
Its oblong-ovate form and hyaline texture will easily distinguish it. 
For further information in regard to this species, see my paper on the Rurutu 
Island land shells. 
V. TANTILLA, Gould. 
Pupa (Vertigo) tantilla, Gould, Proc. Bost. Soc. Nat. Hist., 1847, p. 197. Pfeiffer, Mon. 
Hel., iii, p. 457. (Vertigo) Mousson, Jour. de Conch., 1870, p. 127. (Vertigo) Schmeltz, 
Cat. Mus. Godeff., iv, p. 69. (Pupilla) Paetel, Cat. Conch., p. 108. 
Vertigo tantilla, Gould, Expl. Ex. Shells, p. 92, fig. 108. (Alea) H. and A. Adams, Gen. 
Moll., ii, p. 172. Pease, Proc. Zool. Soc., 1871, pp. 460, 463, 474. Garrett, Jour. Acad. 
Nat. Sci. Phila., 1881, p. 400. 
Pupa Dunkeri, “ Zelebor” Pfeiffer, Mon. Hel., vi, p. 333. 
Vertigo Dunkeri, Pease, Proc. Zool. Soc., 1871, p. 474. 
Vertigo armata, Pease, Proc. Zool. Soe., 1871, pp. 461, 474. 
Pupa armata, Pfeiffer, Mon. Hel., viii, p. 407. 
Vertigo dentifera, Pease, Proc. Zool. Soc., 1871, pp. 462, 474. 
Pupa dentifera, Pfeiffer, Mon. Hel., viii, p. 408. 
I gathered examples of this small shell at Tahiti, Huaheine, Borabora and Mau- 
piti. In all probability it occurs on the other islands, and ranges west to the Viti 
group, where Dr. Graffe obtained specimens. 
It may be distinguished from the preceding species by its dark color and thin, 
plicate strize. 
For further remarks, see my paper on the Cook’s Island shells, published by the 
Academy of Natural Sciences of Philadelphia. 
Genus SUCCINEA, Draparnaud. 
Succinee are tolerably abundant on all the islands, except Borabora and Maupiti, 
where I failed to find examples. Like the Partule, they may be divided into ground 
and arboreal species. 
