Aes 
BRIEF DIAGNOSES OF MOLLUSCA FROM CENTRAL 
AUSTRALIA. 
By Proressor Rautpu TAre. 
[Read October 2, 1894. ] 
SUCCINEA INTERIORIS, sp. nov. 
Slender, aperture two-thirds the Jength of the shell, and thus. 
near to S. scalarina, but is nearly twice the dimensions. The 
last whorl is not quite so convex, and the spire is shorter and 
narrower. 
Length, 17; diameters, 9°25 and 6°5. Aperture: length, 11:5; 
width, 7 mm. 
STENOGYRA INTERIORIS, sp. nov. 
Similar to S. gracilis, Hutton (iS. Tuckeri, Pfr.), but is more 
slender, has nine whorls instead of eight in a length of 10°5 mm.; 
whorls less convex, but the suture more profund; the growth- 
lines finer, more regular, and closer together. 
Length, 10°5 ; width, about 2:25 mm. 
PupA FICULNEA, sp. nov. 
Similar to ?. australis, but dextral and smaller; suture more 
channelled. 
Length, 3:5; width, 1°75 (vix). 
Pupa BELTIANA, sp. nov. 
A longer and narrower shell than P. pacifica, with less convex 
whorls, rarely sinistral. 
Length, 4°5 ; width, 2-0 (vix); a more slender form 4°5 x 1:5. 
PUPA ISCHNA, sp. nov. 
Sinistral, similar to P. myoporine, Tate, but more slender, with 
flatter whorls ; more attenuate apically than P. Beltiana. 
Length, 4:25; width, 1:25 mm. 
PupaA EREMICOLA, sp. nov. 
Like P. myoporine, but much broader, less attenuate apically ; 
aperture more oblique, peristome largely reflected. Differs from 
P. Beltiana by larger size, less convex whorls, and large um- 
bilicus. Oats 
Length, 5:5; width, 2°5 mm. 
