TEERESTRIAL MOLLUSCA INHABITING SOCIETY ISLANDS. 
83 
T. NiTiDA, Pease. Plate II, fig. 24. 
Tornatellina nitida, Pease, Proc. Zool. Soc., 1860, p. 439; Jour, de Conch., 1871, p. 93; 
Pi'oc. Zool. Soc., 1871, p. 473. Pfeiffer, Mon. Hel., vi, p. 264. Garrett, Proc. Acad. 
Nat Sci. Phil., 1879, p. 22 ; Jour. Acad. Nat. Sci. Phil., 1881, p. 399. 
rhi.s species is found abundantly on all the islands in southeastern Polynesia, and 
ranges northwest as far as the Caroline Islands, where I obtained Mr. Pease’s type 
specimens. 
It is a thin transparent species, with a more tapering spire than ohimga, with the 
twisted columella of conica, but readily distinguished by the acute plication on the 
columella. 
T. APERTA, Pease. Plate II, fig. 20. 
Tornatellina aperta, Pease, Proc. Zool. Soc., 1864, p. 673 ; 1871, p. 473. Pfeiffer, Mon. 
Hel., vi, p. 264. 
Xot uncommon on foliage, and ranges throughout the group. A few examples 
were taken by me at the Marquesas Islands. 
It may be distinguished by its globose-ovate form and the peculiar vertical biden- 
tate crest on the columella. 
The animal, which is very active, is subpellucid with dusky tentacles. The foot 
is oblong, rounded behind, and nearly as long as the shell. The eye-peduncles are 
stout. Labial tentacles, none. Muzzle large, dilated, and aids in locomotion. 
T. Peaseana, Garrett. Plate II, fig. 19. 
Shell imperforate, oblong-ovate, smooth, thin, shining, 'faintly striated, dark brownish 
horn-color ; spire conical, with nearly planulate outlines and subacute apex ; suture 
faintly impressed ; whorls five and a half, convex, moderately increasing, last one large, 
rounded, not descending in front; aperture large, oblique, truncately ovate, nearly 
half the length of the shell; peristome thin, straight, regularly curved; parietal 
region with a prominent, thin, revolving white lamina, which is slightly reflected pos- 
teriorly ; columella armed with a prominent, nearly vertical, bidentate plait. 
Length 5, diam. 2| mill. 
JIab . — Moorea Island. 
Very rare on foliage. Closely allied to aperta, but much larger, more elongate, 
darker color and the spire more produced. 
Genus VERTIGO, Muller. 
V. pedicueus, Shuttleworth. Plate III, fig. 42. 
Pupa pediculus, Shuttleworth, Bern. Mitth., 1852, p. 296. Pfeiffer, Mon. Hel., lii, p. 557. 
Sclimeltz, Cat. Mus. Godeff, v, p. 89. Mousson (var. Samoensis), Jour, de Conch., 1865, 
p. 117. 
