TERRESTRIAL MOLLUSCA INHABITING SOCIETY ISLANDS. 
59 
Partula Tahitana, Schmeltz (not of Gould), Cat. Miis. Godeff., v, p. 92. Paetal, Cat. Conch., 
p. 104. Pease, Proc. Zool. Soc., 1811, p. 413. 
Partula maura, Muhlfeldt (teste Anton). 
This well-defined arboreal s])ecies is restricted to Utuloa, on the north end of 
Raiatea, where it exists in great profusion, associated with the typical I\ faba. 
In referring to the synonymy and references, it will be observed that this well- 
characterized species has been frequently confounded with the widely different l\ 
OtaheHana^ a Tahitian species. 
It is accurately figured by Reeve, in his monograph of Partula, on Plate II, figs. 
11a and 1 1 h. llis fig. 1 1 c is P. crassilabris. Pease. 
In all probability" Mr. Reeve had access to Broderip’s type specimens, so there 
cannot bo much, if any, doubt of this being the shell the latter had before him when 
he wrote his description. He may have, as the late Mr. Pease suggested, included 
more than one species in his diagnosis. His habitat is certainly wrong. The shells 
were collected by Cuming at Raiatea, not “ Huaheine,” and, as was too frequently the 
case, he had forgotten the exact locfliity. 
So far as I can ascertain, there has been no description published, except the briel' 
diagnosis of Broderip. It may be characterized as follows ; — 
Shell narrowly umbilicated, ovate -conic, scarcely shining, with rather rough incre- 
mental striae, decussated by crowded spiral incised lines, which become evanescent on 
the last whorl ; color varying from whitish to different shades of luteous horn-color, 
frequently with longitudinal darker strigations ; spire rather short, plano-convexly 
conical, half the length of the shell ; apex somewhat obtuse and frequently tinted 
pnrple-brown ; suture impressed ; whorls five, shghtly convex, the last OJic more or 
less turgid ; aperture rather small, subvertical, obauriforni, much contracted by the 
labiated peristome; parietal wall with or without a white tubercular tooth; peristome 
thick, moderately expanded, white, frequently margined with light brown, contracted 
above, and the extremities frequently united by a ridge of callus. 
I>ength 18, diam. 12 mill. 
Tlu' above are about the average dimensions, though they vary some in the relative 
proportions of height to diameter. Examples of a light brown, or deep blackish 
brown, or the latter color with a median yellowish band on the body-whorl, are not 
infrequent. 
Dr. Hartman inadvertently cites “ Tahiti ” as its habitat,, and in his chart corn'ctly 
assigns it to Raiatea. 
P. Moorean.\, Hartman. Plate III, fig- 55. 
Partula Mooreana, Hartman, Proc. Acad. Nat. Sci. Phila., 1880, p. 229 ; {Helena) Cal. 
Part., p. 10 ; Obs. Gen. Part., Bui. Mus. Com. Zool., ix, p 184. 
'rhis arboreal species is abundant, and restricted to Vaianai valley, on the southeast 
coast of Moorea, where it shares the metropolis of P. vexillam, Pse. 
