SOY 
‘ L 
NOTES ON SOUTH AUSTRALIAN MARINE MOLLUSCA, WITH 
DESCRIPTIONS OF NEW SPECIES.— PART XVI. 
By Jos. C. Verco, M.D. (Lond.), F.R.C.S. (Eng.). 
139 
[From ‘Transactions of the Royal Society of South Australia,” 
vol, wlit., 1918.] 
[Read August 8, 1918.] 
This paper is a continuation of the series from page 201, 
of vol. xxxvi., of 1912, and deals with the genera Cypraea, 
Trima, and Hrato. After enumerating for a species its 
localities in South Australia, those in Western Australia are 
given as far north as Fremantle, where I may have taken it. 
Further, where in the same area I have obtained species not 
found in South Australia, they have been listed, so as to 
indicate which pass round Cape Leuwin and which do not. 
A vs#aocypraea reevei, Sowerby. SF 
Cypraeca reevei, Gray: Sowerby’s Conch. Tlus., 1882, fig. 52, 
Cat. Cypraeidae, 1837, No. 15; Adcock: Handlist Aquatic Moll. 
S. Austr.,- 18938, p. 5, No. 153; Shaw: Proc. Mal. Soc., 
1909, vol. viiil., p. 302; Vereo: Trans, Roy. Soc. S. Austr., 
1912, vol. xxxvi., p. 210; Hedley: Jour. Roy. Soc. W. Austr., 
1916 (1915), p. 199. 
Habitat.—Sowerby (1837) gives Garden Island, mouth 
of the Swan River, Western Australia. 
Taken off Newland Head, Encounter Bay, 20 fathoms, 
1 dead; in Backstairs Passage, 20 fathoms, 1 dead; Yanka- 
lila beach (Adcock); Cape Spencer beach (Tate); Corny 
Point beach, Spencer Gulf; St. Francis Island beach, 1 per- 
fect; 100 fathoms, 90 miles west of Eucla, 3 alive; 72 to 120 
fathoms, 120 miles west of Eucla, 1 dead; Hopetoun beach, 2 
(A. Parkinson); Esperance beach, 4; Albany beach, 3; 
Rottnest Island, 3. 
When mature the length may be 40 mm. or only 28 mm. 
The relative width may vary, being 25 mm., with lengths 
of 36 and 39 mm, Of three taken alive in 100 fathoms one 
is of a uniform delicate cream colour, one a lavender-grey, 
and one of a rather deeper tint with four obscure darker 
transverse bands. The beautiful example from St. Francis 
Island is of a dark slate colour, with close set antero-posterior 
lighter lines, 4 faint broad transverse darker bands, and the 
whole surface finely malleated. Some more solid older speci- 
mens are of a light chestnut colour with darker chestnut 
bands. All have the pink tips front and back. 
It is a rare shell in South Australia, and appears not to 
reach the Victorian boundary, is distinctly more common at 
