OP NEW SOUTH WALES. 269 



Large conical teeth on the branchial arches and pharynx. Tongue 

 smooth. Six branchiostegals. Operculum armed. Prceoperculum 

 bluntly serrated and emarginate on the posterior edge. Eye 

 moderate. Scales small. One dorsal fin with eleven spines. Caudal 

 fin rounded. 



18. HOMALOGRYSTES GuNTHERI. 



Plate VI. Fig. 3. 

 D.'ji A. f, P. 17,C. 18. 



Height three and a half times in the total length. Head three 

 times in the same. Upper maxillary extending to the vertical from 

 the middle of the eye. A space half an inch wide at the symphysis 

 of both jaws almost without teeth. Operculum of a dense bony 

 consistence, with two flat spines and a large convexity fitting the 

 emargination of the prajoperculum. Dorsal spines strong, and 

 tolerably uniform in size. Colour, dark on the back and light on 

 the belly, with scattered spots all over, like those of Oligorus 

 Macquariensis. 



This huge fish, measuring thirty-six inches in length, twenty-six 

 in girth, and eight in width of mouth, was caught by the hook in 

 six or seven fathoms of water, about twelve miles south of the 

 New Guinea coast at Katow. The sea at that distance from the 

 shore was of a muddy appearance, and palms and other trees were 

 floating about in abundance, indicating the presence of a large 

 quantity of fresh water. 



There can be little doubt there is a great affinity in this fish to 

 Grystes. In general aspect it resembles Oligorus, but its dentition 

 and the number of its branchiostegals separate it from that genus. 

 We have named the species after the distinguished author of the 

 " Catalogue of the Fishes of the British Museum." 



19. — Odontonectes erythrogastes (Renard 1, 32, 174). 



Ccesio erythrogaster, Cuv. and Val. 6, p. 442, pi. 166 ; Bleek 

 Conch. Batav. Gensch. 23, Macniel, p. 9. 



Two specimens of this handsome fish were taken at JFitzroy 

 Island. 



