34 . 
LAND SHELLS. 
S.A. NAT.. 
VOL. XVIII, No. 2. 
Meracomelon howardi. 
1869. Helix (IPlectotropis) howardi Angas^ Proc. Zool. Soc. 
(Lond.), p.48, pi. II, fig. 9, June 21. Arrowie, 450 
miles north of Adelaide, South Australia. 
A topotype agrees in size and particulars with the description 
and figure, and the strongly expanded lips differentiate this from 
all the other species of the genus, so that a new sub-generic 
name Contramelon is Introduced. The keel is very pronounced 
and the umbilicus is comparatively wide for this series. Although 
the coloration recalls the Meracomelon series the mouth forma- 
tion strongly suggests relationship with typical Semotrachia. I 
have since noted that Cotton and Godfrey (South Austr. Nat., 
Vol. XIII, p.l75, Aug. 1932) had placed this species under 
Glyptorhagada- Specimens so named from Angorichina, from 
the South Australian Museum, belong to Meracomelon meridion- 
ale suspectum ante, and are larger, with coarser sculpture,, 
umbilicus more closed and mouth with discontinuous lips though 
the edge shows thickening. 
Genus Cupedora. 
1933. Cupedora Iredale, Rec. Austr. Mus., Vol. XIX p.48 
August 2. ’ 
Orthotype Helix Imcolniensis Pfeiffer. 
This generic name was introduced for a species, which had 
been allotted to genera belonging to distinct families, and at 
present it appears to belong to the Meracomelon series rather 
than to the Rhytidoid group. It differs In the peculiar sculpture, 
unlike that of Meracomelon^ but its general form is similar, save 
that in the immature there is a notable anteperipheral depression. 
It appears that lincolniensis develops Into the species known as 
patruelis and that evandaleana is the northern representative. 
Key to Species. 
Shell helicoid, whorls rounded, earlier whorls keeled showing 
an anteperipheral groove, sculpture of coarse radlals 
with scant granules scattered, umbilicus hidden by 
reflected columella in adult 
patruelis —lincolniensis ^ 
Shell similar to juvenile above as this species does not seem 
to develop into a shell corresponding to the preced- 
adult ^ evandaleana^ 
Shell with spire a little elevated, anteperipheral groove pres- 
sent, sculpture of wavy lines weak overrun by coarse 
granulation tomsetti^ 
