82 



PROCEEDINGS OF THE ACADEMY OF 



[March, 



Head large, deep, compressed, upper profile curved a little from 

 tip of upper jaw and then straight after middle of orbit, and lower 

 profile forming a broad angle below front of orbit. Snout short and 

 rounded. Eye large, rounded, almost impinging on upper profile and 

 anterior. Adipose eyelid covering greater part of orbit. Mouth ter- 

 minal and a little superior, small, and mandible projecting a little in 

 front. Maxillary well inclined, distally broadly expanded till about 

 equal to f of pupil, and its posterior edge not quite reaching opposite 

 same. Teeth in jaws minute, and if present on roof of mouth and 

 tongue very small or indistinct. Tongue small, a little elongate, and 

 with free rounded tip. Each ramus of mandible well elevated inside 

 mouth. Interorbital space rather narrow and flat. Nostrils close 

 together, and about midway in length of snout. Preorbital rather 



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^ 

 ■^'4 



Fig. 1. Jenkinsia stolifera (Jordan and Gilbert). 



narrow and together with infraorbital, preopercle and opercle furnished 

 with rather large arborescent flutings, those on latter with more or 

 less adipose substance above. Opercle with a gash in upper posterior 

 margin. Articular surface or mandible below its articulation with a 

 broad obtuse spine or denticle. 



Gill-opening carried forward till about opposite front margin of 

 orbit. Rakers fine, slender, longer than filaments. Filaments and 

 pseudobranchise about equally well developed. Isthmus trenchant 

 in front, and flattened rather broadly posteriorly. 



Scales cycloid, caducous or but few remaining on alcoholic examples 

 and those mostly comprising dorsal and anal sheaths, and on base of 

 caudal. A patch of adipose tissue on shoulder behind opercle above. 



