1906.] NATURAL SCIENCES OF PHILADELPHIA. 427 



ramus but little elevated inside of mouth. Maxillary reaching beyond 

 front of pupil slightly, though not to middle, and distal expansion 

 emarginated posteriorly 2^ in horizontal orbital diameter. Margin 

 of preorbital with 6 backwardly directed teeth or serrse. Bands of 

 very fine teeth in jaws and on vomer and palatines, those on latter 

 very narrow. Tongue narrow, elongately triangular, and free in 

 front. Lower lip laterally rather fleshy. Nostrils near together, 

 posterior larger and close in front of eye, and anterior placed about 

 last I in length of snout. Interorbital space rather narrow and flat- 

 tened, frontal and supraocular keels nearly equidistant. Posterior 

 ridge of preopercle well serrated, at angle 2 large denticles and lower 

 edge with coarser serratures than those on vertical margin. Ridge 

 just in front with 2 small serrse at angle. Opercle ending in a long thin 

 flap above. Suprascapula coarsely serrate above. 



Gill-opening extending forward opposite froyit margin of orbit. 

 Gill-rakers ii, 5 + 11, iii, lanceolate, and longest longer than longest 

 filaments, or about 1| in horizontal orbital diameter. Isthmus narrow, 

 and with a slight median furrow. 



Scales small, in series parallel with lateral line, small and crowded 

 on predorsal region, where they nimiber about 25, and on bases of 

 vertical or unpaired fins. Scales also small on breast and about 

 chest. About 7 series of scales on cheek. Opercles, and a patch on 

 each side of head above behind eye, scaly. With these exceptions 

 head more or less cavernous and with prominent ridges. Dorsals and 

 anals with basal scaly sheaths. Axil of ventral with a scaly flap cov- 

 ered with a number of small scales. Lateral line of large simple tubes, 

 prominent, and uniform in color with rest of body. 



Spinous dorsal inserted a trifle behind origin of ventral, third and 

 fourth spines evidently longest? (though missing) and others graduated 

 down. Rayed dorsal inserted nearly midway between posterior rim 

 of orbit and base of caudal, and rays highest anteriorly. Spinous 

 anal inserted nearly midway between origin of ventral and base of 

 caudal or opposite base of fourth dorsal ray. Second anal spine very 

 long, nearly straight, longer than third, and reaching beyond base of 

 caudal. Anal rays graduated down from first which is longest. 

 Caudal forked, lobes evidently pointed. Pectoral reaching a little 

 beyond base of last dorsal spine, though not quite opposite origin of 

 second dorsal. Ventral inserted a little behind origin of pectoral, 

 and reaching f of space to anal, though a little short of origin of rayed 

 dorsal. Vent a little before tips of ventrals or about j in post-ventral 

 space. 



