1907.] XATURAL SCIENCES OF PIIILADEM'IItA. 441 



Head broad, depressed, iu lateral profile appearing attenuated, and 

 when viewetl above its greatest width at posterior margin of preopercle 

 or about last third of its length. Anterior profile as seen from above 

 convex, though rather narrowl}- constricted. Snout broad, short, its 

 anterior profile broadly convex as seen from above, and its length Ij 

 in its width at front margins of orbits. Eye small, superior, a little 

 longer than deep though rounded, and its center falling about first 

 fourth in space between tip of snout and posterior margin of opercle. 

 ^louth large, broad, and mandible projecting well beyond tip of upper 

 jaw in front. As seen below mandible is broadly convex around front 

 profile, or its width about 1^ in its length. Maxillary narrow, reaching 

 back till opposite posterior margin of eye, and its distal extremity 

 slender or forming a point below. Rather narrow bands of small 

 slender pointed teeth in jaws. Similar teeth in two widely separated 

 short narrow bands or series on each side of vomer in front, each of 

 these close behind band in jaw. On each side of roof of mouth also a 

 similar band or series to those on vomer, though a little further from 

 band around edge of jaw. Roof of mouth otherwise edentulous. 

 Tongue rather large, broad, depressed, rounded in front and apparently 

 little free. Nostrils (damaged) apparently similar, close together 

 directly in front of eye. Interorbital space narrow and flattened. 

 Top of head posterior to eyes broad, very slightly convex to nearly 

 flat, and from upper sides rather converging below to branchiostegal 

 region, though at this point, and across isthmus, rather broadly 

 depressed. Posterior margin of preopercle entire and convex. Pre- 

 orbital and infraorbitals rather roughly rugose. 



Gill-openings large and extending well forward. Gill-rakers not 

 now evident and filaments also probably dried. Isthmus rather nar- 

 rowly triangular, and with lower surface forming a short trenchant 

 keel. 



Scales large, distributed over most of head and all of trunk, and on 

 latter forming longitudinal series parallel with lateral line. Scales on 

 head rather small, and extending down on cheek and opercle. On 

 trunk scales on predorsal region and belly are smaller than elsewhere. 

 Scales all thin, broadly exposed, with entire margins and without 

 corrugations of any kind. No scales on fins (caudal damaged and 

 therefore not determined). Lateral line continuous, a little superior 

 at first or till after tip of pectoral, then midway along side of trunk to 

 middle of base of caudal, and composed of long and rather well exposed 

 tubes. 



Dorsal long, its insertion well behind that of anal or near first third 



