BY W. MACLEAY, F.L.S. 569 



D. 8/18. A. 13. 



The soft dorsal fin is as high as the body beneath ; the length of 

 the base of the spinous dorsal is equal to, or more than, one-half 

 of that of the soft ; eyes slightly directed upwards ; the width of 

 the interorbital space is half the length of the diameter of the 

 eye. Back with five brown cross-bars. 



Port Jackson. 



Gfroup C. Pseiidochromides. 



Eyes more or less lateral. Head not cuirassed. Lateral line 

 interrupted or not continued to the caudal fin. 



Q-enus Opisthognathus, Guv. 



Body rather elongate, rounded anteriorly, slightly compressed 

 posteriorly ; upper profile of snout parabolic ; cleft of mouth large; 

 the maxillary produced backwards ; eye lateral, large. Scales 

 small ; lateral line not continued to the caudal. One dorsal fin 

 with the rays flexible ; ventrals jugular ; lower pectoral rays 

 branched. Cardiform teeth in the jaws, palate smooth. Opercles 

 not armed. Six branchiostegals ; the gill membrane joined 

 together inf eriorly ; pseudobranchiae, air-bladder small ; pyloric 

 appendages none. 



Eed Sea, Indian and Australian Seas ; Coast of Brazil. 



420. Opisthognathus maculatus, All. & Macl. 

 Proc. Linn. Soc. N.S. Wales, Vol. I., p. 280, pi. 9, fig. 3. 

 Palm Islands. 



421. Opisthognathus darwiniensis, Macleay. 

 Proc. Linn. Soc, N. S. AVales, Vol. II., p. 355, pi. 9, fig. 3. 

 Port Darwin, 



