BY W. MACLEAY, F.Ii.S. 213 



819. Abitjs gagorides, Cuv. & Val. 



Gunth., Cat. Fishes V., p. 140. 



D. 1/7. A. 17. P. 1/12. 



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

 length (without caudal), the length of the head two-sevenths ; 

 head much broader than high, its greatest width being equal to 

 the distance of the hinder nostril from the end of the opercle. 

 The teeth on the palate are in two pairs of confluent patches, 

 those on the palatine bones are large, broad, and emarginate 

 posteriorly. Six barbels, shorter than the head. Crown of the 

 head granulated, the granules being arranged in radiating series ; 

 occipital plate triangular, elevated into an obtuse ridge along its 

 middle, rather broader than long ; the basal bone of the dorsal 

 spine is of moderate width, narrowest in the middle, each half 

 slightly bent into an S-shaped form. Dorsal spine strong, as 

 long as the head without snout, granulated in front, and obtusely 

 serrated behind, as high as the soft portion of the fin, or as the 

 body underneath. Adipose fin somewhat shorter than the dorsal. 

 Pectoral spine as long as that of the dorsal fin, granulated 

 exteriorly and serrated inferiorly. Ventral fins much shorter 

 than the pectoral, not extending to the anal. Caudal fin deeply 

 forked. 



Port Darwin. 



820. Abius atjstbalis, Gunth. 



Gunth., Proc. Zool. Soc, London, 1867, p. 103. 



D. 1/7. A. 16-17. P. 1/10. 



The height of the body is contained from four times to four 

 times and a-half in the length (without caudal), the length of the 

 head thrice and a-third or thrice and a-f ourth ; the greatest width 

 of the head is five-sixths of its length. Occipital process as long 

 as, or longer than broad, granulated, with a very obtuse median 

 ridge, extending to the small basal bone of the dorsal fin. Eye 



