A Review of the Land IMollusca of Western Austraeta. 
43 
somewhat diffei’ciitly sc-ulptured, the eoncenti’ic striae being overiidden by 
distant radials, ilie t'orei'unnors of the adult soiilptnre. As the shell is also 
coneave above, a feature not seen in any southern shell, a new subgenus 
Corinomala being introdueed with A', tnmida as type. 
Genus EPINICIUM gen. iiov. 
Type E. restifer sp. nov. 
Plate 1., fig'. 36. 
A very beautiful shell sent by Mr. Glauert from Serpentine attracted by' 
the bold ridges, recalling those of the much smaller Eastern Kgilomen. 
Shell small, subdiscoidal, spire a little el(‘vate<l, whorls rounded, loosely 
coiled, sutures deep, last whorl rounded, d(‘scending in front, mouth obli(iuely 
semicircular, outer li]) thin, columella .straight, umbilicus wide, cavernous, 
walls steep. 
Coloration deep brown. Apex tip smoothish, finely radially striate, suc- 
ceeded in the adult by strong distant radial ribs, the interstices closely' radially 
striate, the ribs on the last whorl numbering about thirty-live, the last ten 
before the aperture being crowded. Breadth 4 mm.; height 2.5 mm. 
This genus differs from Liiinodhcus in its .smoothish a))ex, sculpture and 
widely umbilicate form, and from /‘rningent in its de])ressed shell, different 
aiiex, sculpture, and umbilical features. 
One specimen, dead, from Pej)])ermint Gro\ e, is larger, flatter, and with 
more ribs, the umbilicus wider, and may for the present be regarded as a sub- 
s])ecies only, E. r. firmatum nov. 
Gemis DUPUCHAROPA Tretlale 1937. 
1937 — Dupuchitropa Iredale, Austr. Zool., Yol. VIII., p. 332, Mch. 12. 
Orthot.V))e Helix millestriaid Smith. 
Medium size Chai'opid shells with depressed spire, narrow deep 
umbilicus, and seulidim! of fine radials with fine spiral striation throughout.’' 
The size separates this from most Charopids but the distinction in 
sculpture must be characteristic, the spiral striations being continuous over 
the radials, a very uncommon feature. 
Dupucharopa millestriata Smith 1874. 
1874 — Helix millestriata Smith, Zool. Voy. Erebus & Terror, Moll., p. 2, pi. 4, 
fig. 5. Dupuch’s I., West Australia. 
1894 — Piitiita millesi riiita Smith, Proc, Malac. Soe. (Lond.), Vol. I., p. 87, 
June. 
1916 — Endodonta miUeslriaUi lledhw, Journ. Roy. Soc., West Austr., Vol. I., 
p. 220, (]). 71 in separate). 
Smith described the sjjecies as follows; “Shell thin, horn-colour perspec- 
tively umbilicated, dei)res.sedly orbicular, ornamented with very close 
arcuately-radiating thread-like riblets, which are coarser on the ujiper than 
the lower surface, entii'cly covered with mici'oscoiiic sjiiral striations, which 
are continuous on, atid between the riblets, spire nearly flat, only slightly 
elevated ; whorls five, slowly increasing, rather convex, separated by' a deepish 
suture, last not descending in front; the umbilicus occuiiying one-fourth the 
width of the base; mouth roundh'-lunate ; ])eristome simple, thin, eolumellar 
