S.A. NAT., 
VOL. XVIII, No. 2. 
B.v TOM TRKDALE. 
45. 
With these, at the Musgrave Ranges, a number of larger, 
stouter shells, much inflated, but with the umbilicus still open, 
were collected and regarded as perinjlata, but one living one 
was separated and recorded by Hedley as angasianum. This 
ijpparently belongs to the godfreyi series, but is the giant of that 
group and is named eupesum sp. nov. PL II, fig. 1. It is possible 
upon reconsideration that the Birksgate impletum may belong to 
this series rather than to the true perinjlatum series. There ap- 
pear to be four series, perinjlatum^ godfreyi, flindersi and jodinale, 
■occurring together throughout South and Central Australia, and 
varying geographically so that it is difficult to determine dead 
shells without scries. The coloration of living specimens is a 
good clue as permjlatum appears to be wholly green, flindersi 
banded with red and white, godfreyi greenish with a superior 
brown band and jodinale, brown rather darker above. The 
sculpture also varies slightly, flhidersi being generally more 
rudely radially ribbed, while godfreyi has the finest striation, that 
can scarcely be called ribbing. 
Bednall and Tate both include Wilson and Carrieton in 
connection with perinflata but specimens from those localities 
have a different appearance although recalling the Central species. 
The shells are large, subglobose, spire short but not pointed, 
greenish with an indistinct anteperipheral band, mouth large, 
subcircular, lips very little reflected. The columella is thickened 
and reflected over the very narrow umbilicus but a chink is left 
uncovered. The shell is roughened by crude unformed radlals 
which are very irregular, scarcely meriting the title of ribs. The 
apex is practically smooth and there Is no decussation. 
Width 24 mm., height 23 mm. As this does not agree with 
any other form it is here named remissum nov., the type being 
a shell from Wilson. PL II, fig. 4. 
Sinumelon pumilio sp. nov. PL II, fig. 11. 
Bednall recorded from Mount Illbillie Soakage, Everard 
Range, under fig trees, at an elevation of 2000 feet, dwarf speci- 
mens with vitreous appearance. These appear to represent a 
distinct species especially as Bednall reported that one of the 
uormal form {perinflata) was taken with them Shell very small 
for this genus, thin, vitreous, deep green, umbilicus almost cover- 
ed by the reflected columella, subglobose, spire rounded, not as 
high as aperture. The sculpture consists of irregular radial 
ribbing, the ribs ill defined and broken, the apical whorls sub- 
granulose, large, one and a half, the latter showing faint radials, 
three adult whorls. Mouth almost circular, outer lip slightly 
reflected. Breadth 15 mm., height 15 mm. 
