176 
MEMOIRS OF THE QUEENSLAND MUSEUM. 
fill much higher than the spinous, a shorter pectoral fin, smaller scales, more 
convex upper profile of head, no vomerine teeth and tail-fin not strongly 
forked), and belongs to a new species of the extensive genus Lutjanus which 
includes some excellent food-fishes. 
Family LUTJAN1DM. 
Genus Lutjanus Bloch, 1790. 
LUTJANUS COATESI sp. nov. (Red Bass). 
(Plate XXVI, fig. 2 and text-fig.) 
Br. 6. D. X/14 (15) ; A. iii/9 ; P. i/16 ; V. i/5 ; C. 14. 
L. Lat. 50; L. tr. 10/1/19 to 5/1/7 on caudal peduncle. 
Head (194 mm.) 2*6 in length to hypural joint (514). 
Eye (34) 5*7, snout (70) 2-7, maxillary (84) 2-3, preorbital (44) 4-4, 
interorbital (59) nearly 3-3, longest pectoral ray (138) 1*4, depth of caudal 
peduncle (60) 3-2, and fourth dorsal spine (61) nearly 3-2 in head. 
Head rather long and somewhat pointed, its upper profile convex. Eye 
large, apparently resting on a subocular shelf ; interorbital broad, convex over 
the eyes and flattened above. A conspicuous fossa before the eye extends to 
the nostrils, of which the posterior are sunken and with an oval outline, 
and the anterior rounded and with a short tube-like rim. Preorbital deep. 
Preoperculum serrated and with a distinct, though not large, notch to receive 
the knob over the inter operculum. Operculum entire, with a weak flat spine 
at its angle, where there is a narrow opercular flap. Interoperculum entire, 
its margin undulating and with a single frill where it joins the chin. The 
head is naked except for two rows of scales on the nape and scaly areas on 
the preoperculum, interoperculum, and operculum. These opercular scales 
are bilaterally asymmetrical in the specimen before me, the left side of the 
head having evidently been damaged at some time. On the right side, there 
are up to seven more or less upright rows on the preoperculum and slightly 
more on the operculum. The naked upper part of the head bears minute 
granular papillae and the tips of the jaws are rugose. 
Jaws subequal, the lower slightly protruding. Maxillary partly sheathed 
by preorbital, without supplemental bone, its extremity truncate, with rounded 
angles and reaching below anterior margin of eye. Mandibles with an arched 
ascending ramus. 
The dentition is very strong yet partly concealed by the coriaceous 
lips. A small curved canine on each side of the premaxillary symphysis is 
followed by another nearly twice as long, then, after a short gap, comes a single 
row of short, strong, pointed teeth along each side of the upper jaw ; none of 
