182 
Hab. Seychelles Islands. 
Length *6, diam. *2 of an inch. 
Remarks. —The most marked character of this species is the 
notched channel of the base, where the colour is rather darker. The 
outer lip is thick and rounded. The superior part of the whorl in 
some specimens is lighter in colour. In its general aspect this species 
resembles Melania simplex. Say. The epidermis is very lustrous. 
The aperture is nearly one-half the length of the shell. 
Melania contracta. M. testa Icevi, ovato-elongatd, pallida, 
tenui; spird elevata ; anfractibus novem , planulatis; aperturd 
ovatd, constricta, ad basim canaliculatd, intus vel albidd vel 
rufa ; columella contortd rejlexdque. 
Hab. Seychelles Islands. 
Length *8, diam. *3 of an inch. 
Remarks. —This, like the dermestoidea , herein described, from the 
same locality, is remarkable for the notched channel at the base. 
They may easily be distinguished by the contracta having a more 
elevated spire, greater number of whorls, being of a lighter colour, 
and in the aperture being longer and more twisted. There is a 
disposition in the upper part of the columella to be thickened and 
rufous, and the twist and backward turn are very remarkable. The 
aperture is about one-third the length of the shell. 
Melania ferruginea. M. testa Icevi, nitida, ventricoso-conoi- 
ded, inflatd, crassd, ferrugined; spird subelevatd; suturis valde 
impressis; anfractibus sex, convexis; aperturd magnd, subro- 
tundd, intus albidd. 
Hab. Zanzibar, East Africa. 
Length *9, diam. '4 of an inch. 
Remarks .—The rather inflated form of this species gives it the 
aspect of some of the Paludince. A single specimen, and not an 
entirely perfect one, has only been submitted for examination. It 
seems to differ from any described species, while it has no very di¬ 
stinctive character. The aperture is very nearly one half the length 
of the shell. 
Melania impura. M. testd Icevi, subcylindraced, compressd, 
subcrassd, viridi-corned; spird subelevatd; suturis valde im¬ 
pressis ; anfractibus planulatis, supra geniculatis; aperturd ellip- 
tica, subcontractd, ad basim retusd, intus albidd; columelld re¬ 
gular iter incurva. 
Hab. Naga, province of South Cumarines, Luzon, Philippines. 
Length *9, diam. ’35 of an inch. 
Remarks. —The angle on the superior portion of the whorls gives 
this species a very distinct aspect. This angle is not very acute, but 
it is very marked in all the four specimens under examination. The 
apex in each being decollate, the number of whorls cannot of course 
be correctly ascertained ; there may be about seven. The colour of 
the epidermis is uniform and of a greenish horn-colour. The aper¬ 
ture is rather more than one-third the length of the shell, and is 
rounded and retuse at the base. 
