NEW or LITTLE-KNOWN LOWER PALAEOZOIC 
GASTEROPODA in the COLLECTION of the 
AUSTRALIAN MUSEUM. 
By R. Etheridge, Junr., Curator. 
(Plates xv., and xvi.) 
The following Lower Palaeozoic fossils are either new to Australian 
Palaeontology, or have been imperfectly described. 
Genus Goniostropha, t Wilert , 1888. 
(Bull. Soc. Etudes Sci. Angers for 1887 (1888).) 
Goniostropha pritciiardi, sp. nov. 
Pl. xv., Figs. 1-4. 
Sp. char . — Shell small, elongately spiral, of seven or eight slowly 
increasing angular whorls, each bearing two sharp median keels, 
enclosing between them a smooth, slightly concave band, and the 
remaining surface of each whorl occupied by a series of fine spiral 
lyrre that arc sometimes finer above than below the band ; sutures 
deep ; mouth with the outer lip apparently rounded, and the 
inner lip reflected. Length (of largest specimen) one and a 
quarter inches. 
Obs . — None of the mouths in the specimens before me are 
perfect, but the outer lip seems to have been rounded in outline, 
and the inner lip is certainly reflected. The whorls are only 
rendered angular by the projecting principal keels, enclosing 
between them the band, and they become less median in position 
as the apex is approached. This form belongs to a group of rather 
common Murchisoma - like shells for which Dr. Daniel (Ehlert has 
proposed the name Goniostropha , distinguished by more or less 
angular whorls, the band occupying the angle or greatest periphery 
of each whorl, accompanied by supplementary finer revolving 
lyrie. In this respect it differs from an allied genus, 1J 1 y per yonia, 
Donald.* 
As this is an undescribed species from the Lilydale Limestone 
of Victoria, I have much pleasure in associating with it the name 
* Quart. Journ. Geol. Soc.* 1889, xlv., p. 623. 
A 
