490 APPENDIX. 



back as the nostrils. The intermaxillaries are moderately pro- 

 tractile, and curve a little downwards. 



The teeth are disposed on the jaws in rather broad villiforra 

 bands, the individual teeth being setaceous and erect. They 

 become a little taller nearer the outside, and the outer 

 terminal cross row, composed of three on each side of 

 the symphysis, may be termed small canines. On the lower 

 jaw the villiform teeth in front are more uniformly small, and 

 there is an acute row of subulate teeth, which are tallest in the 

 middle of the limbs of the jaw, beyond which, towards the 

 corners of the mouth, there is an even row of very small teeth. 

 At the end of the jaw there is a small canine on each side 

 exterior to all the others. 



The fore edge of the preorbitar is slightly curved in form of 

 the italic f, the lower corner curving forward abruptly, so as 

 to produce a notch, which is filled up by the extremity of the 

 retracted maxillary. The whole end of the snout, back to the 

 eyes, including the disk of the preorbitar, is minutely porous, 

 and a row of large pores borders the upper half of the orbit. 



The jaws, the uneven lunate disk of the preoperculum and the 

 branchiostegous membrane are naked, the rest of them being 

 scaly. The scales of the cheek are disposed in six concentric 

 curves, the same arrangement extending to the gill-cover, but 

 less conspicuously. A small flat spinous point projects beyond 

 the scales of the operculum, which has a very narrow mem- 

 branous edging. The scales are ciliated. The caudal is slightly 

 notched at the end, its basal half is scaly, as is also the base of 

 the pectorals ; the rest of the fins are scaleless. The dorsal is 

 nearly even, its height being, however, rather greatest at the 

 fourth or fifth spine. Its end is rounded. 



A dark stripe, commencing at the top of the snout, runs 

 through the eye straight to the tail, and a fainter one occupies 

 the summit of the back to the end of the dorsal. The curve 

 of the lateral line rises above the lower stripe anteriorly, but 

 coincides with it beyond the posterior end of the dorsal. The 

 rest of the fish is silverv, and the fins are not marked. These 



