
A CATALOGUE or tae CONE SHELLS (CONIDAE) 
in tHe SOUTH AUSTRALIAN MUSEUM 
By BERNARD C, COTTON, Concrotocisr, Sourn Ausrramn Museum, 
Plates i-v, and Text Fig. 1. 
INTRODUCTION. 
Tris catalogue is the result of a preliminary examination of the Conidae contained 
in the South Australian Museum cabinets and a few in other collections. The 
Musetiin cones are aceumulated trom the following sources, 
1, Kenyon Collection, This magnificent series provides the bulk of inaterial 
here reviewed anc contains the few Brazier types. Although species are fre- 
quently represented by good series of typical specimens, most are, unfortinately, 
without locality, hese series are referred to under localities as ‘‘ Kenyon Collec- 
tion,’’ 2, Matthews Collection, 8, Vereo Colleetion, 4, May Collection. 
Tu addition the following people have donated or provided specimens for ¢xamt- 
nation with localities: Dr. Deland, Manus; Miss K. Tammat, W. O, North; W. BR. 
Steadwian, Wiji; A. M. Lea, Lord Howe Island and Murray Island; N. B. Tindale, 
Groote Bylandt; H, K, Bartlett, Lonisade Arehipelago and East Coast New 
dines; also Mrs. Lb. A. Hllott, BF. Trigg and others. 
RADULA, 
The following account of the radula of Pleraconus anemone was made from a 
series of slides prepared from South Austvalian specimens ‘The dental tormmla 
i3 1.0,0.0.1 and the microphotograph is of fully formed denticles. There are two 
‘ows oF mareials, converging towards their points and behind them a sheat or 
bundle not arranged in the double row. Each tooth tapers towards its distal ex- 
tremity, where it ends in a crochet hook or single barb. From the base of the 
barb 4 toothed marginal ribbon extends half way along the denticle. The tooth 
is grooved along one surface up to the base of the barb so as to form an open, 
sheath like gutter. In this lies a ribbon, with teeth along the edge, attached dis- 
tally to the base of the barb, and when not in use lying folded in the groove. The 
ribbon is continued to the base of the dentiele, but with no teeth in its proximal half. 
The edge of the ribbon, entirely devoid of teeth is traceable to the expanded hase 
of the denticle, and just opposite the point where the teeth cease and on the 
other edge of the ribbon is a sort of triangular stop, probably forming a valve. 
The edge of the ribbon which has the teeth, and which also extends to the 
base is loose and rumpled. In some specimens, and probably normally in all, 
the two edges of the ribbon are approximated. In all probability, when not in 
use, the rumpled edge of the ribbon lies loose and allows the denticulated edge to 
lie flat in the groove of the denticle, and when to be put into action, a musele at 
the hase pulls upon and straightens this cdye aud so makes taut and erect the 
dentienlated half. This brings into position a row of denticulations continous 
with the base of the barb. After ereetion the ribbon again folds longitudinally 
and with its free edges in contact forms a tube throughout the length of the den. 
ticle. The poison passing from the venom gland through a long duet opening into 
the oesophagus, (hence to the teeth, finally traverses, probably by capillary attrac- 
