r444 COLONEL MONTAGU ON NEW AND RARE 



since that species has by some been described with 

 a black spot on the dorsal fin ; and I suspect the 

 Ocellaris is not always furnished with that mark, 

 as one instance has occurred where it was scarce- 

 ly defined. 



As there are some peculiarities in this fish, 

 which do not appear to have been noticed, I 

 trust the following description, accompanied with 

 a figure, will be the means of its being clearly 

 identified, should it ever occur without the spot 

 on the dorsal fin. Independent, therefore of the 

 mark from which the name is derived, and which 

 is not always ocellated, I submit the following 

 specific characters : 



A crust over each eye, digitated on one side : 

 a long crooked tooth far back on each side , the 

 under jaw ^ : one dorsal fin, the first ray of which 

 is longest : ventral fin. with three united rays : a 

 minute membranaceous flap on each side the back 

 near the head ; another at the upper angle of each 

 gill. 



The shape of this species is somewhat similar 

 to that of the Gattorugine, but the forehead is 

 more sloping : the eyes are placed high, but not 

 above the level of the crown, as in the Gattorugine, 

 nor has it any transverse sulcus behind the head, 



* Shaw says B. cornutus has two long teeth in the undef 

 jaw. 



