226 DESCRIPTIVE CATALOGUE OF AUSTRALIAN FISHES, 



forked. Grill-opening very wide. Branchiostegals six or seven. 

 The outer branchial arch with stiff, shortish spine-like gill-rakers. 

 Pseudobranchire well developed. Air-bladder none. 



Ocean Fishes, Atlantic and 'Pacific. 



837. Alepidosaurus ferox, Lowe. 



Gfunth., Cat. Fishes V., p. 421. — Eichards., Voy. Erebus and 

 Terror, p. 34, pi. 22, figs. 1-4. 



B. 6-7. D. 41-44. A. 14-17. P. 14-15. V. 9-10. 



The length of the head is twice the height of the body, and 

 rather less than one-sixth of the total length, (without caudal). 

 The eye occupies the middle of the length of the head, of which 

 it is one-sixth ; its diameter equals the width of the interorbital 

 space. Dorsal fin much elevated. Pectoral elongate, but 

 terminating at a great distance from the ventral ; the first raj of 

 the dorsal, pectoral, and ventral fins with the edge slightly 

 serrated. Upper caudal lobe produced into a long filament. 



Tasmania (Richardson). 



Family IV. STOMIATID^. 



Skin naked or with exceedingly fine scales ; a hyoid barbel. 

 Margin of the upper jaw formed by the intermaxillary and 

 maxillary, which are both toothed ; opercular apparatus but 

 little developed. Gill-opening very wide ; pseudobranchiae none. 

 Adipose fin absent or present. The eggs are enclosed in the sacs 

 of the ovarium, and excluded by oviducts. 



Deep Sea Fishes. 



Gfenus Echiostoma, Lowe. 



Body elongate, compressed, scaleless, with the vent situated at 

 no great distance from the caudal fin. Head rather compressed, 

 with the snout short, and the cleft of the mouth very wide. Teeth 

 pointed, 'unequal in size, those of the intermaxillary and anterior 



