398 THE PEOCEEDINGS OF THE LTNNEAN SOCIETY 



MONACANTHUS GRANULATUS. 



Monacantlius granulatus, White, Voy. to N. 8. W., p. 295, ^Z. 39. 



Gunther Gat. vol VIIL, p. 243. 

 granulatus ? Uicliard. Ereb. Sf Terror, fishes, p. 63, 

 pi. 40. 



"Ventral spine present, enclosed in the pelvic bone ; dorsal 

 spine with only two series of barbs pointed backwards and 

 downwards ; body covered with minute papillae like mushrooms ; 

 the ventral fin very fully developed. 



Of a brownish grey, marbled with dark brown, with the papillae 

 white ; fins olive yellow sprinkled with brown ; generally two 

 large dark spots at the base of the anal on the belly. 



N.B. — Certainly difi'erent from my margaritijer, but having 

 the same form ; Richardson's species is I believe the latter, as the 

 plate represents the dorsal spines barbed on both sides. 



MONACANTHUS MEGALURUS. 



Monacanthus megalurus, Richard. Ic. Pise. p. 109, joZ. 8. 



chinensis, Richard. Ereh. Sf Terror, fishes, p. 64, 

 pi 40. 



Body elevated ; snout pointed ; dorsal with only two series of 

 barbs, which are pointed backwards and downwards ; anal fin 

 with thirty or thirty-one rays ; ventral spine moveable, without 

 spinelets ; some old males with the upper caudal ray produced. 



Brown ; ventral expansion of a livid grey with its extremity 

 black ; dorsal of a dusky brown with its external half yellow ; 

 extremity of the caudal and anal black. 



Obtained in April. 



Monacanthus Peronii. 



Monacanthus Peronii, Hollard, Ann. Sc. Nat. 1854 ; vol. II,j 

 p. 356, pi 13, fig. 4. 



Anal fin with thirty-three spines ; the dorsal with four edges, 

 equidistant, and armed with barbs ; body covered with papillae 

 having rather the form of small mushrooms ; four curved spines 

 on the tail. 



Brown with the lower parts grey ; along the back and the base 

 of the anal are seen irregular narrow lines of a most beautiful 



