terrestrial mollusca inhabiting society islands. 
79 
1‘arlida bicolor, Garrett, MS. 
Partula adusta, Garrett, MS. 
Parlula lugubris, Gloyne (not of Pease), Quar. Jour. Conch., i, p. 338. 
Partula simplaria, Schmeltz (Morelet ?), Cat. Mus. Godeif., v, p. 92. 
Partula perplexa, Pease, MS. Coll. Pease. (Ex. Hartman.) 
Huaheine, where they are very abundant on foliage. It was first discovered bv Mr. 
Cuming, who gave the habitat “ Society Islands,” and gratuitously added that of the 
“ Navigator Islands,” where it is 7 iot found. 
The type is very variable in coloration, and considerably so in size and shape. 
The smallest form, which = P. pulchra, Pse., gradually merges into the type, and is 
restricted to the largest of the two valleys called Hamene. The type which equals 
my Hualieinensis and (idusta, is usually corneous, luteous, more frequently fulvous, 
rarely white, and the most abundant variety is dark chestnut, sometimes nearly black 
wth a pale apex and dark or pale lip. Deep chestnut-colored examples, with a wide 
or narrow central pale band, are not uncommon, and are Avell represented by Reeve’s 
fig. ITrt. Ills fig. 175, with an obscure central fulvous band on a pale ground, is 
rather common. 
In the liigher portion of Hamene may be found a large form = hicolor, Garr., 
which is either uniform straw-yellow, or greenish yellow, with or without a dark 
chestnut spire. It differs from the typical varia in being larger, more robust, the 
whorls more inflated and the aperture wider. 
In a valley named Faahiti, on the northern part of the island, we find in the 
greatest profusion, associated with P. cognata, Pse., a form shaped like Incohr, but 
smaller and more variable* in color than the t}q)ical varia. The most common variety 
is light yellowish, sometimes strigated, the lip, and sometimes tlie base, stained with 
burnt-brown or violet-brown. Nearly half of the specimens are uniform fulvous brown, 
or chestnut-brown approaching black. The variety with central pale band is also very 
frequent, as well as the one of a uniform whitish or luteous with white lip. Ihe pale 
variety with chestnut spire is somewhat rare, besides one with a dark spire and two 
narrow hands on the body-whorl. A lot of these shells sent to the “ Museum 
Godeffroy,” were by Prof. Mousson referred to Morelet’s P. simplaria, and have been 
freely distributed under that name. Morelet cites “Tahiti” as the habitat of his species. 
His “ apice obtuso rosaceo ” and “ sutura albo marginata ” do not occur in these 
shells nor any of the varieties of varia. Mr. Pease did not identify it with any of the 
Huaheine .shells; but Dr. Hartman, on the contrary, regards it as a variety of 7^. 
rosea. 
Resides the three valleys just alluded to, we find this species generally distributed 
in greater or less numbers throughout all parts of the island, but subject to much less 
variation in form and color. Like hicolor, and the generality of the Faahiti shells, they 
