54 
TKRnESTlUAI. MOLLUSCA INHABITING SOCIETY ISLANHS. 
,.ar,..,a IWe. MS. <M„a Pee, Gloy„e, Q.,«r. .lour. Coucl.., i, 338. 
Schmeltz, Cat. Mas. Godeff., v, p. 207. 
uen/r/cosa, Garrett, MS. 
Partula Hebe, var. bella, Pease, Proc. Zool. Soc., 1871, p. 473. 
The snei ific ec.utre of the type of this small white species is in the laiRe valley of 
Faaloa, on the eastern coast of Ratatea, where it is found iu great profusion on the 
foliage of hushes. From this central point it has migrated to the northward, where 
it is found, though less abundant, in an adjacent valley, associated with the typical 
/>. dentifera. About two niile.s to the southward, on the same side of the island, m 
a large valley called Opoa, is found in large numbers the pretty variety (= 
glohoan. Pse.), which has passed over a range of wooded hills into a large valley on 
the south coast, where it occurs in limited numbers in company with P.formoaa. In 
another ^ alley, some distance to the northward, on the west coast, we find another 
variety P. ventricosa, Garr.), which, though shaped like the type, in color closely 
rc.si'inbles P. crassUahris, a ground species. 
Th(‘ tyjie, which is (dmays decorticated, may be readily distinguished by its ovaU‘- 
globose shajie, uniform white color, not shining, constant prominent parietal tooth and 
subcirenlar aperture. Associated with the type are two varieties ; one, pinky white, is 
very rare; the other, white with an orange-colored spire, is rather rare. Ihe variety 
hella, l’s('., differs none from the type, except in having the spire more or less light 
red and the body-whorl most generally Avith a very thin, smooth, pale yellowish horn- 
(tolored ejiideriuis. The variety ventricosa, Garr., is usually a little smalh'r than tlu* 
tyjH?, not decorticated, and is more variable in color, but never banded. 'I'he ground 
color varies from whitish to fuhous, rarely with a reddish spire, but more frequently 
with the apex of a purple-brown hue. 
I’.'IMI-KRFOKATA, I’casc, MS. Plate III, fig. 53. 
Partula imperforata, Pease, MS. Coll. Pease, 1863. Paetal, Cat. Conch., p. 104. Pfeitler, 
Mon. Hel., viii, p. ‘209. (Astrsea) Hartman, Cat. Part., p. 8 ; Obs. Gen. Part., Bui. Mas. 
Com. Zool., ix., pp. 183, 195 (part). 
Partula dentifera, Carpenter (not of Pfeiffer), Proc. Zool. Soc., 1864, p. 675. Hartman, 
Obs. Gen. Part., Bui. Mas. Com. Zool., ix, p. 186 (part). 
Partula recta, Pease, MS. (not recta. Pease, in Amor. .Jour. Conch, 1868) Coll. Pease, 1863. 
Partula auriculata, var., Carpenter, Proc. Zool. Soc., 1864, p. 675. 
Partula liaiatensis, Garrett, MS. 
Shell imjK'iforated or compres.sly umbilicatcd, solid, oblong-conic, sometvhat shining, 
with rather smooth, irregular, incremental strite and closely set delicate spiral incLsed 
lines, which are more or less evanescent on the bodjMvhori ; color, pale straw-yellow, 
hiteous, or fulvous, with or without a rosy apex ; spire conical, tvith subplanulate 
outlines, about half the length of the shell; suture sometimes margined by a ruo'ose 
wliib line, n boils 5-5 1, flatly convex, the last one convex or convexly rounded; base 
