OF NEW SOUTH WALES. 37 



Height of body one-sixth of the total length ; mouth small 

 snout rather pointed and not the length of the diameter of the 

 eye, which is one-third of the length of the head ; a thin 

 membrane entirely covers the eyes ; head with abroad depression, 

 and with a central carina extending from the occiput to the mouth; 

 anal fin very low, caudal forked, pectorals situated well behind 

 the vertical from the dorsal ; back dark coloured ; sides and 

 belly silvery. Length 6 inches- Caught by the hook in Port 

 Jackson a few days ago. 



I regard this fish as distinct from the Japanese species 

 Etrumeus tnicropus. They differ inter alia in the number of the 

 dorsal and anal rays. 



Family SCLERODERMI. 



10. — MONACANTHUS GtJTTULATUS. PI. IV, fig. 2. 



D. 32, A. 30. 



Skin very finely granular ; greatest height of body about one- 

 third of the total length ; eye nearly six diameters from the 

 snout ; profile straight ; lower jaw protuding beyond the upper ; 

 dorsal spine above the middle of the eye, with four series of nearly 

 equal barbs ; pectoral fin situated beneath the anterior margin of 

 the orbit ; ventral spine very small ; tail rounded with four acute 

 rather small spines pointing backwards on each side of the root — 

 the spines yellow and placed on yellow spots ; the colour in 

 spirits is of a yellowish olive, densely marked all over with small 

 blue spots ; the mouth is black, and there are numerous blue 

 streaks on the fore part of the body — somewhat vertical on the 

 head, and horizontal on the thorax ; a raised black line near the 

 base of the dorsal and anal fins, and on the base a black scaley 

 sheath, with a yellow membranous line beyond. Length 1 inches. 

 One specimen from King George's Sound. In some respects this 

 species seems to resemble Monacanthus Yagoi of Castelnau. 



