A REVISION OF THE AUSTRALIAN ORECTOLOBIDA. 293 
Queensland Coast, living in the crevices of coral blocks, 
where they have been taken by one of us at Murray Island, 
Torres Straits, Hope Islands off Cooktown, and at Masthead 
Island off Port Curtis (McOulloch). It has been recorded 
from Port Jackson by one of us, but we have reason to 
believe that this locality is incorrect (Ogilby). 
Described from two half-grown specimens (a male of 290 
and a female of 325 millimeters) obtained by Mr. E. J. 
Lyons at Green Island, Cairns, and presented by him to the 
A.H.A. Q. Museum, Cat. Nos. 195-6. 
CHILOSCYLLIUM TRISPECULARE, Richardson. . 
Hemiscyllium trispeculare, Rich., Icon. Pisc., 1843, p. 5, pl. i, fig. 
2, and Hrebus and Terror, Fish., 1844, p. 43, pl. xxviii. 
Chiloscyllium trispeculare, Ginth., Brit. Mus. Cat. fish., viii, 1870 
p. 411; Regan, Proc. Zool. Soc., 1908, p. 359. 
It has been suggested by one of us’ that this species is 
probably only a well-marked colour variety of C. oceilatum, 
Gmel. We have examined two fine specimens from Port 
Darwin in the Australian Museum collection, which agree 
closely with Richardson’s figure, and find that the only 
differences between them and specimens of C. ocellatwm 
are those of colour-marking. In place of the large dark 
spots scattered over the back, sides, and tail of the latter, 
the surface is covered with minute brownish dots which 
are absent only on the under surfaces and between the 
cross bands on the tail. These dots are not disposed in 
small groups as shown in the figure, but are evenly spaced 
throughout. Behind the ocellus are two confluent dark 
markings which are represented in C. ocellatwim by two 
distinct black spots. The differences in the sizes of the 
fins of the two forms, as mentioned by Regan are not 
shown in our specimens. 
1 Ogilby, Proc. Linn. Soc., N.S.W., xiv, 1889, p. 181. 
