South Australian Naturalist. 
The 
Vol. XVI. ADELAIDE, APRIL 10th, 1935 
No. 2. 
SOUTH AUSTRALIAN SHELLS. 
<' Including descriptions of New Genera and Species). 
(By Bernard C. Cotton & F. K. Godfrey). 
PART XIII . 
TROCHIDAE (Contd.) 
Subfamily— CALLIOSTOMATINAE. 
Shell generally conical, with angular periphery; columella 
simple above, not folded, and either simply concave below or 
slightly truncate and toothed, or cylindrical, strongly plicate. 
Operculum thin, circular, corneous, many whorled. Distribution 
— All seas, from low tide mark to 500 fathoms. Fossil — Secon- 
dary. Animal having the epipodial lobes large, with three or 
four pairs of cirri; frontal lobes small, simple Or fringed; muzzle 
rather large, fringed at its extremity; tentacles long, ciliiform; 
ocular peduncles distinct, but short; foot large, truncated in front. 
Radula has the central and four to five lateral teeth with irreg- 
ularly oval body, and rather long pointed cusps, their outer edges 
serrate; marginals numerous, 30 to 50, narrow, with narrow ser- 
rate cusps. 
Calliostoma Swainson 1840 (= Zizyphinus Gray 1840: 
= Conulus Nardo 1840: = Lischkeia Fischer 1880: = Eucasta 
Dali 1889). Imperforate or rarely umbilicate, conical, rather 
thin; whorls smooth, spirally ridged or granular, the last angled 
at the periphery; aperture quadrangular; columella simple, us- 
ually ending in a slight tooth at the base. Operculum thin, cir- 
cular, horny, many whorled. (Type — Trochus conulus Linne, 
from the Mediterranean). The genus is found in all seas, rang- 
ing from low tide mark to 500 fathoms. 
