BY J. DOUGLAS OGILBY. 95 
the preorbital when the mouth is closed; lower jaw in- 
cluded ; a large open mental pore. Jaws with a band of 
minute teeth ; no enlarged teeth ; vomer, palatines, ptery- 
goids, and tongue toothless. Nostrils separate, the pos- 
terior the larger, rounded, semivalvular, and approximate 
to the orbit. Eyes of moderate size, mostly anterior 
and supero-lateral. Preorbital deep and entire ; vertical 
limb of preopercle with a narrow, crenulated, membran- 
aceous border; opercle with a short spine. Two dorsal 
fins, connected at the base, with x, 1 29 rays, the spinous 
portion much shorter and higher than the soft, its 
rays flexible : anal fin short with 1 7 rays, the second spi- 
nous ray strong ; vertical fins with a low basal scaly sheath, 
and a series of small scales behind each soft ray: caudal 
fin large and cuneate, mostly scaly: pectoral fin well 
developed, asymmetrical, with 18 rays, the upper middle 
ones the longest : ventrals inserted behind the base of the 
pectorals, close together, with 15 rays, the first soft ray 
the longest and terminating in a filament. Gill-openings 
wide ; gill-membranes separate, free from the isthmus ; seven 
branchiostegals ; pseudobranchiz well developed ; gills four, 
a slit behind the fourth; gill-rakers short and spinulose ; 
first, second, and fourth upper pharyngeals armed with 
small sharp teeth, the inner row of which is somewhat 
enlarged ; third pharyngeal enlarged, with strong conical 
teeth ; lower pharyngeals separate, with five series of teeth, 
the inner strong, the others gradually diminishing in size. 
Air bladder large, without lateral fringes, expanded in front, 
pointed and extending well beyond the vent behind. Sto- 
mach siphonal ; seven short pyloric appendages ; intestine 
with two convolutions. (wévdos, false ;  pu«rnp, nostril ; 
the anterior nasal flaps and pores having the appearance 
of supplementary nostrils). 
Coast of Queensland. 
In the feebleness of its dentition this genus differs 
from all the other Australian scizenids, and approaches the 
American genus Leiostomus,* from which, however, it may 
be distinguished by the permanency of the mandibular 
teeth, the shorter anal fin, the cuneate caudal, and the acute 
lower pharyngeal teeth. 
* Lacépéde, Poiss., iv., p. 4389, 1802: 
