398 NEW AUSTRALIAN FISHES IN THE QUEENSLAND MUSEUM, 



Therapon ACUTIROSTRIS. 

 D. 12/10. A. 3/8. Lat. 60. Tr. 8/18. 



The height of the body is 3, and the length of the head 3f in the 

 total length. The orbit aud snout are each 3, the inter-orbit, 4^ 

 in the length of the head. 



Dorsal moderately emarginate. Caudal slightly so. The upper 

 profile angular, that of the head nearly straight from the dorsal. 

 Muzzle sharp. Pre-orbital serrated. The serrations of the hinder 

 limb of the pre-operculum gradually increasing in length down- 

 wards. Operculum with two spines. The 4th and 5th doi-sal 

 spines the longest ; the 2nd anal longer and stronger than the 

 third. Dorsal spines and 2nd anal very strong. 



Colour light silvery blue with three longitudinal stripes on the 

 body, the middle running from the snout over the eyebrow to the 

 tail. Web of the dorsal edged with black. Fins othei'wise 

 uniform. In one example the back above the upper stripe is 

 nearly as dark as it, rendering it indistinct. 



Length, 4 inches. Locality, Queensland. 



Allied to T. oxyrhynchus. 



Autisthes. Nov. gen. 

 Persistent vomerine teeth ; body oblong ; jaws subequal ; one 

 dorsal deeply notched, with 12 strong spines. In each jaw an 

 outer series of stout conical teeth. All the bones of the head 

 armed, operculum with a strong spine. Scales small, three strong 

 anal spines, eye large, no groove behind the chin nor pores on the 



mandibus. 



Autisthes argexteus. 



D. 12/10. A. 3/8. Lat. 85. Tr. 14/26. 



The height of the body is less than one-fourth of the total 

 length and equals the length of the head, including the opercular 

 spines. Orbit 3|, and snout (=interorbit) 31 in the length of 

 til.- head ; 4th dorsal spine (the longest) |- of the same. 



Preorital and inter-operculum finely denticulated, preoper- 

 culum on both limbs strongly crenulo-dcntated ; operculum, with 

 two points, the upper almost obsolete, the lower elongate, dagger 



