BV J. DOUGLAS OGILBY. O 



depth of the head If, width of the head If to 1 1, of the inter- 

 orbital region 2i to '2^, diameter of the eye 3| to 4 in the length 

 of the head; interorliital region very slightly convex; snout very 

 broad and obtuse, a little longer than the diameter of the eye, its 

 upper profile slightly convex. Mouth moderate, with anterior 

 cleft, the lips thin; premaxillaries narrow, meeting below at an 

 obtuse angle; maxillary reaching to the vertical from the anterior 

 border of the eye, and a little longer than its diameter, its distal 

 half only partially concealed beneath the preorbital bone; lower 

 lip included; the dentary bones of the lower jaw forming a very 

 obtusely angular (almost rounded) outline in front, with a very 

 shallow notch intervening. Both jaws with numerous series of 

 short, subclaviform cilia, the anterior row in the lower jaw 

 separated from the others by a smooth interspace; ectopterygoids 

 with a patch of minute teeth; vomer, palatines, and tongue 

 smooth. Adipose eyelid well developed and moderately opaque, 

 reaching anteriorly a little beyond, posteriorly to the edge of the 

 pupil. Preorbital as wide or not so wide posteriori}- as the pupil; 

 the hinder half, of the lower and the posterior borders finely 

 serrated, the former without notch, the latter rounded. Gill- 

 rakers short and slendei', 84 on the lower branch of the anterior 

 arch. 



First dorsal fin originating midway between the base of the 

 caudal and the extremity of the snout ; the spines are rather 

 weak, the first straight, not mucli longer than the second, and 

 1|^ in the length of the head ; the third spine is considerably 

 shorter than the second, and the bases of these three are in 

 contact; the last spine is inserted far behind the other three and 

 is very feeble, its length being 2i in that of the first; the space 

 between the origins of the two dorsal fins is as long as or a little 

 longer than the head; the first soft ray of the second dorsal is 

 but feebly branched and not quite so long as the second, which is 

 as high as the first dorsal fin; the last ray is considerably pro- 

 duced, the outer border of the fin being deeply emarginate : the 

 anal fin is inserted below the second dorsal, and the length of its 

 base is If to IJ in its distance from the caudal; the first soft ray 



