88 TERRESTRIAL MOLLUSCA INHABITING SOCIETY ISLANDS. 
Its peculiar shape, which suggested the specific name, will readily distinguish it. 
The last whorl is more or less malleated or grooved, and frequently there may be seen 
transverse raised lines running parallel with the suture. 
S. PALLIDA, Pfeiffer. Plate II, fig. 5. 
Succinea pallida, Pfeiffer, Proc. Zool. Soc., 1846, p. 109; Mon. Hel., ii, p. 521. Pease, 
Proc. Zool. Soc., 1864, p. 677; 1871, p. 472. Schmeltz, Cat. Mus. Godeff., v, p. 207. 
This species is very abundant in moist places in forests, both in Raiatea and Tahaa. 
A closely allied form occurs high up in the mountain ravines on Moorea. It is never 
found on foliage. 
Though Pfeiffer gives the habitat ‘* Tahiti,” there is not much, if any, doubt of its 
having been collected, by Cuming, at Raiatea. So common a species could scarcely 
have escaped the notice of that experienced collector. 
The measurements, color and texture agree very nearly with Pfeiffer’s description. 
Like the preceding species, which it closely resembles, it varies in the size of adults, 
longer or shorter spire, more or less strongly convex body-whorl, and in color from 
pale straw-yellow to whitish or corneous. ‘The last whorl is sometimes slightly flattened 
beneath the suture, and frequently malleared. The strive are more developed than in 
pudorina. The Moorea specimens are more or less incrusted with dirt, and are rather 
darker-colored, the striae coarser, and the aperture more regularly ovate. 
8. suBGLoBosa, Garrett. Plate II, fig. 3. 
Shell small, ovate-globose, rather thick, subopaque, finely and distinctly striated, 
yellowish corneous, more or less decorticated ; spire very short, subacute ; whorls two, 
rounded, very rapidly increasing, the last one very large, subglobose, subangulate on 
the shoulder, aperture orbicular-ovate, two-thirds the length of the shell; columella 
strongly arched. 
Length 4, diam. 3 mill. 
Hab.—Yahiti. 
Common on the trunks of trees. Its diminutive size and subglobose form will 
distinguish it from costulosa, the nearest allied species. 
Genus LIMAX, Linnzus. 
L. Raroroneanus, Heynemann. 
Limaxz Rarotonganus, Heynemann, Nach. Malak. Gesell., 1871, p. 43. Schmeltz, Cat. Mus. 
Godeff., v, p. 96. Garrett, Jour. Acad. Nat. Sci. Phil., 1881, p. 402. 
A few examples taken in the lower portion of Fautana valley, on the northwest 
coast of Tahiti, and appear to differ none from Rarotonga specimens. Not observed 
in any other part of the group. A few smaller specimens, collected at the Gambier 
group, are probably the same species. 
