324 DESCEIPTIVE CATALOGUE OF AUSTRALIAN FISHES, 



short filaments. Body elevated, its depth being one-half or two- 

 thirds of the length without the caudal fin. Snout pointed, with 

 the upper profile concave. Dorsal spine very strong, about as 

 long as the head, situated above the eye rather behind the middle, 

 and armed behind with a double series of strong recurved spines. 

 Caudal fin rounded ; dorsal and anal fins low. Ventral spine 

 moveable ; armed with curved spinelets on the side, separated 

 from the ventral rays. Brown, marbled with blackish ; an 

 indistinct whitish longitudinal band on the side of the trunk, 

 behind the gill-opening. Caudal fin with two blackish cross-bands. 



Australia (Gunther), Endeavour Biver (young, Macl. Mus.) 



1018. Monacanthus sulcatus, Hollard. 



Ann. Sc.Nat. 1854, IT., p. 363, pi. 14, f. 3.— Gunth., Cat. Fishes 



VIIL, p. 239. 

 D. 29-32. A 31-33. 



Scales minute, spiny, each with a keel, the keels confluent, 

 forming parallel longitudinal raised lines. Body rather elevated, 

 its depth being a little more than one-half the length without 

 caudal fin. The dorsal profile between the dorsal fins somewhat 

 oblique, the commencement of the second dorsal being the highest 

 point. Snout slightly pointed, with the upper profile nearly 

 straight. Dorsal spine of moderate strength, tapering, shorter 

 than the head, situated above the posterior part of the orbit and 

 armed with two series of barbs behind. Caudal fin rounded, 

 sometimes with the upper ray produced into a short filament ; 

 dorsal and anal fins of moderate height. Ventral spine moveable, 

 tapering, rough, free from and extending beyond the ventral 

 flap. Brown, irregularly marbled with darker ; sometimes a 

 roundish blackish blotch below the anterior third of the dorsal fin. 



Australia. (McGillivray.) Length three and a half inches. 



1019. MoNACANTlIUS GRANULATUS, White. 



Bichards. Voy. Erebus and Terror, p. 63, pi. 40, figs. 1-2. 



