336 DESCRIPTIVE CATALOGUE OF AUSTRALIAN FISHES, 



tubercles. Caudal fin long and rounded. Colour above and on 

 the sides dark purple with numerous white narrow longitudinal 

 lines, running all round the body, four of these on the cheeks ; 

 the belly is orange, the fins yellow, immaculate. 



Port Phillip. (Casteln.) Length two inches. 



Family II. GYMNODONTES. 



Body more or less shortened. The bones of the upper and 

 lower jaw are confluent, forming a beak with a trenchant edge, 

 without teeth, with or without median suture. A soft dorsal, 

 caudal and anal fin are developed, approximate. No spinous 

 dorsal. Pectoral fins. No ventrals. 



Genus Tetrodox, Bibr. 



Jaws divided by a median suture. Body with or without 

 small dermal ossifications. Dorsal and anal fins short, with the 

 rays in small number. 



Tropical and Sub-tropical Seas ; some species in rivers. 



1040. Tetrodox l/evigatus, L. 

 Gunth., Cat. Pishes VIII., p. 274. (Synonyms numerous.) 



Body entirely naked above and on the sides ; abdomen with 

 small three-rooted spines. The length of the head is equal to 

 the distance of the gill-opening from the dorsal fin. Caudal fin 

 forked in adults, sub-truncate in young. Uniform greenish 

 above, sides silvery, abdomen white. 



Port Jackson, Torres Straits. 



1041. Tetrodox luxaris, Bl. 



Gunth., Cat. Pishes, VIII., p. 274.— Bleek. Atl. Ichth. Gymnod. 



pi. 1, fig. 2. 



Tetrodon sjpadiccm Puchards. Bleck. Atl. Ichth. Gymnod., pi. 3, 



fig. 1. 



