l'Gl' the proceedings of the linnean society 



much injured and rendered difficult of recognition by the knocking 

 about which they got on board ship when in insufficiently filled 

 tanks. 



The collection lias been made exclusively on the Australian 

 coast in the inner passage from Percy Island to Cape York, in New 

 Guinea at Katow and Hall Sound, and in Torres Straits from 

 Warrior Island on the West to Darnley Island on the East. 



We adopt the divisions and arrangt ;nent given by Gunther in 

 his celebrated Catalogue of the Fishes of the British Museum. 



Order 1. — Acanthopterygii. 



Family Percid^e. 



New Genus — Pseudolates. 

 Seven branchiostegals. No pseudobranchise. Very fine villiform 

 teeth on the jaws, vomer, palatine bones, and tongue. Two dorsals, 

 the first with seven spines. The anal fin with three spines. Oper- 

 culum with one spine. Piseoperculum with strong spines at the 

 angle and lower limb. Proeorbital finely serrated. Scales large. 



1.— Pseudolates cavifrons. 

 plate III. 

 D. 7-Jp A. §. 

 Body rather compressed. Height four and a third times in the 

 total length. Head, nearly three and a half in the same. Teeth, 

 minute, uniform, feeling like fine sandpaper. Profile of head con- 

 cave. Upper maxillary large, extending beyond the vertical from 

 the posterior portion of the eye. Lower jaw longer than the upper. 

 Distance between the eyes about ecpial to the diameter of the orbit. 

 Prseoperculum finely serrated on the posterior edge, with a strong 

 spine at the angle, and three smaller spines on the lower limb. A flat 

 acute spine on the upper part of the operculum. Coracoid with 

 seven denticulations, the upper one indistinct. Pectoral fins small, 

 ventrals with a very strong spine. The third spine of first dorsal 

 very strong, and more than half the height of the body. Soft dorsal 

 scaly at the base. Anal with the third spine much the longest, and 

 the soft poi-tion received into a scaly sheath. Caudal fin rounded, 

 colour shining, brown on the back, pale beneath. Scales on the 

 body very large and finely serrated. 



