A REVISION OF THE AUSTRALIAN ORECTOLOBIDA. 281 
back, being adjacent to and overlapping the base of the 
lower caudal lobe. (paxvs, short; «Aovpos, a cat). 
Small ground sharks from the east coast of Australia. 
Like Orectolobus they are sluggish in their habits, and haunt 
the vicinity of weed-grown rocks at no great depth, feed- 
ing upon mollusks, crustaceans, andsmall fishes. Monotypic. 
BRACHALURUS MODESTUS, Gunther. 
Chiloscyllium modestum, Giinther, Proc. Zool. Soc., 1871, p. 65+, 
pl. liv, Coast of Queensland; Macleay, Proc. Linn. Soc. N.S W. 
wig Sol, paa08. 
Chiloscyllium furvum, Macleay, zbid., p. 364, Port Jackson. 
Hemiscyllium modestum, Waite, Rec. Austr. Mus., iv, 1901, p. 28, 
fig. 9, pl. iv, fig. 1 (fetus). 
Brachelurus modestus, Regan, Proc. Zool, Soc., 1908, p. 354. 
** Brown Cat Shark,’’ ** Blind Shark.’’ 
Body robust, its depth 8°00 in the total length. Depth 
of head 1°40 in its width, which is 1°20 in its length; length 
of head 1°50 in the trunk and 5°50 in the total length. 
Snout broadly rounded, depressed anteriorly and rising 
somewhat abruptly about midway between its extremity 
and the eye, its preoral length 3°25 in that of the head. 
Anterior angle of nostril nearer to the tip of the snout 
than to the mouth; internasal space subequal to the pre- 
oral space and 1°10 inthe width of the mouth; nasal cirrus 
as long as the snout, reaching a little beyond the lower 
labial groove, and 2°35 times the diameter of the eye. 
Mouth a little nearer to the tip of the snout than to the 
eye, its width 2°75, that between the outer angles of the 
labial grooves 2°10 in the length of the head. Hyea little 
nearer to the first gill-slit than to the tip of the snout, its 
diameter 8°25 in the length of the head.  Interorbital 
region convex, its width 2°40 in the head. Branchial region 
2°80 diameters of the eye; width of first gill-slit equal to 
