
STEADMAN AND COTTON—CLASSIFICATION OF THE COWRIES 505 
Genus HusraPHYLABA nov, 
Genotype, Cypraea semtplota Mighels, 1845. 
Shell elongate ovate, light brown with numerous minute white spots; base 
tumid, white, aperture yellowish, narrow; extremities produced; teeth moderately 
strong, somewhat produced actoss the base; margin not calloused but slightly 
vidged on the outer side, Length 9-21 mm,; width 6-11 mm, 
KEY TO GENERA OF STAPHYLAEINAE. 
a. Weakly of obsoletely granulose, 
b. Weakly granuloze. 
c. Teeth right across the base ,. 5 ‘y ¥ os .- Staphylaca 
ec, Teeth not right seross the base =. , ne ve A .. Purperosa 
bb. Obsoletely granulose a ve te o ta se .. Bustaphylaea 
aa. Strongly granulose. . “s rv; i me oe .- -» MNuctearia 
Subfamily Umpiniar. 
One hundred millimetres in length or less; elongate ovate; extremities pro- 
duced; irregularly spotted or unicoloured; smooth; teeth weak, not produced 
across the base; margin uot ealloused; deeply umbilicate; base rounded, not 
spreading. Umbtlia Jousseaume, 1884, Cypraea hesitata Iredale, 1916. 
The Tertiary Rhynchocypraea, Palliocypraea, and Gigantocypraea belong 
here with the recent cold water Umbilia, They are sufficiently closely related to 
the typical Cypraeaidae to be regarded as a subfamily only, 
Subfamily Zorinag. 
Seventy-five millimetres in length or less; elongate ovate; spire elongate; 
extremities produced ; irregularly spotted; smooth; teeth weak and incomplete; 
margin not ealloused ; not umbilicate; base rounded, not spreading. The develop- 
ment of the teeth range from the practically edentulous Bernaya to the partly 
developed teeth of Zotla and the complete, though weak set of Siphocypraea, 
Genera are: Zoila Jousseaume, 1884, Cypraea friend Gray, 1831. Bernaya 
Jousseaume, 1884, Cypraea media Deshayes, 1831, Siphooypraca Heilprin, 1887, 
Cypraea mus Linné, 1758, This subfamily and the next, Cypracovulinae, are re- 
presented only in Africa and Southern Australia, each forming a peculiar and 
restricted subfamily of ancient lineage, 
Zoila episema Iredale, 1939, holotype Cape Naturaliste, S.W.A., is in the 
South Australian Museum D. 3980. It was evidently purchased by Mrs. Kenyon 
from, someone for £20 as the type of thatchert Cox. However, that type was sent 
to England by Cox according to Sowerby. 
Cypraea marginata Gaskoin, 1848, is a juvenile thersites, the latter name 
having page priority. 
KEY TO GENERA OF ZO/LINAE. 
a. Practically edentulous a% te .- =" 7 Le -. Bernaya 
aa. Weakly developad teeth, 
b. Series of teeth incomplete +. 1 oe 34 + .. Zoila 
bb. Series of teeth complete .. be 6 4 te oe .. Siphocypraea 
