245 
DEFINITIONS OF NEW SPECIES OF LAND SHELLS 
FROM SOUTH AUSTRALIA. 
By ProFessor Ratpu Tare. 
[Read September 5, 1899]. 
Glyptorhagada euglypta, spec. nov. PI. vi., figs. 3a-3c. 
Shell sublenticular ; spire broadly and flatly conical, slightly 
raised above the plane of the body-whorl; apex obtuse. 
Whorls five, of somewhat rapid increase, nearly flat, separated 
by a linear impressed suture. Last whorl abruptly and briefly 
descending at the front, moderately inflated, sharply keeled ; 
flatly convex from the peripheral keel to the suture but inter- 
rupted by a narrow flat or slightly depressed area contiguous 
with the keel; the anteperipheral area sharply curved and merg- 
ing into the tumid base. Aperture sub-quadrately oval, the 
major axis transverse; margins feebly thickened and reflected ; 
columella arched, expanded, and reflected over about one-half of 
the umbilical crater; margins of the aperture united by an 
adnate callus Umbilicus moderately wide, but deep, with some- 
what precipitous sides, about one-sixth the diameter of the base. 
The ground colour is unknown, as all the specimens are bleached, 
though a few of them still retain traces of rufous colour bands, 
one at the suture and one occupying the _ post-peripheral 
depression. 
Sculpture.—The two apical whorls without sculpture or faintly 
closely transversely striated, the tip is small and immersed, the 
first whorl relatively large and somewhat inflated, graduating 
into the narrower and moderately convex second whorl. The 
ordinary spire-whorls are ornamented by refracted sharply 
elevated subacute corrugations, which are flatly crenated on their 
summits ; on the last whorl, in particular, intermediate corruga- 
tions are crowded at the suture, the intercostal spaces have 
coincident lineations; the corrugations serrate the keel, about 
ten in a length of one miJlimetre measured in the anterior part 
of the whorl, thence they extend sigmoidally to the umbilicus. 
Dimensions.—Major and minor diameters, 25 and 21; height, 
13; horizontal and vertical diameters of aperture, 12 ; diameter 
of umbilicus, 4. 
Locality. Collected by Mr. H. Y. L. Brown, Government 
Geologist, at Anabama, situate about one hundred miles north- 
east from Burra Burra. 
