48 
TEKKKSTRIAL MOLLUSCA INHABITING SOCIETY ISLANDS. 
wliitcN is frequently pinky flesh-color. The prevailing colors are straw-yellow, reddish 
fulvous, light chestnut, frequently with the spire more or less tinted with reddish and 
often with longitudinal strigations. The spire is more or less produced, and the 
aperture varies some in size and shape. 
The shape of the shell varies from abbreviate-ovate to elongate-ovate, as the 
following measurements will show : — 
Length 21, diam. 10 mill. Uextral sp. 
Length 16, diam. 10 mill. Dcxtral sp. 
Length 20, diam. 10 mill. Sinistral sp. 
Length 16, diam. 9 mill. Sinistral sp. 
All tlie old authors refer to sinistral forms. The elongated dextral shells were 
described under the names Vonicorensis and Reeveana. 
In a valley about two miles west of Fautana, there exists in abundance the variety ( ?) 
lignarix. Pease, which, though described as dcxtral, is nevertheless very frequently 
sinistral. Though not attaining quite so large a size as the Fautana shells, it differs 
none in .shape, but is usually darker colored and more .strigated, as well as exhibiting 
one to tliree transverse reddish chestnut bands. The lip is always white, and the 
])arietal tooth is very seldom absent. The inosculation with OtaJieitana is so comphde 
that it cannot be even separated as a well-marked variety. 
To tlie eastward between Fautana and Papinoo valley, a distance of about eight 
miles, there are three valleys, all inhabited by Pfeiffer’s amahilis, a sinistral form which 
has not a single feature to distinguish it from some of the large turreted Fautana 
sliells. In the first valley, Pfeiffer’s species, though not abundant, were very fine 
specimens. The next valley, known as Pirai, the metropolis of the small dextral R. 
jUooa, which occupy the lower part of the valley, is, in the upper part, which trends 
towards the headquarters of Otaheitana, inhabited by the sinistral nmahilis. A few 
immature examples were found which were banded like lujnaria. 'J'he only dextral 
Partnln' taken in the two Aalleys were filosa, aitenuata and liyalina. 
In the next valley, called Haona, I found the dextral P. (ijfinis abundant, and took 
a few of timabilis. 
Botli Dr. Pfeiffer and Reeve described the latter species from specimens in the 
Cummgian collection, and both quote Anaa, a low coral island, as its habitat. Having 
resided about five months on that island, and searched all parts for shells, I did not 
find a single Pariula there, or on any other low coral island. Mr. Pease, in his list 
of Polynesian land shells, assigns it to Tutuila, one of the Samoa or Navigator 
Islands. on authority I do not know. The type is purely Tahitian. Dr. 
” u "w J' r the correct loealitv. Though 
prclent ^ very frequently 
Pease’s which cannot be separated from 
some of the small abbreviated 
