106 PROCEEDINGS OP THE ACADEMY OF [March, 



down from same point to anal; width of head ly^ in its length; depth 

 of head 1^; mandible 2f;. caudal 2^; pectoral If; third ray of anal 3^; 

 snout about 8 in head from tip of upper jaw; eye about 7^; inter- 

 orbital space about half of eye. 



Body elongate, swollen about branchial region in width but depth 

 at this point less than farther back, and rest of trunk or long tail taper- 

 ing. Upper profile convex, especially above pectoral posteriorly. 

 Caudal peduncle compressed, and its depth nearly a fifth of length of 

 head. 



Head large, compressed anteriorly and swollen laterally posteriorly, 

 and its greatest depth greater than that of trunk. Upper profile 

 nearly straight, and but Uttle inclined. Lower profile well inclined. 

 Snout very short and a little broad. Eyes superior, directed upwards, 

 close together near tip of snout and longer than broad. Mouth small, 

 superior, and with jaws protruding. Mandible produced beyond 

 upper jaw\ Teeth in jaws, only apparent when mouth is open, fine 

 and in bands. Apparently no teeth on vomer or on tongue. Each lip 

 with a fringe of long cutaneous flaps of even length at regular inter- 

 vals and conspicuous at all times. Tongue thick, rounded, a little 

 posterior in mouth, and free in front. Nostrils directly in front of 

 eye, separated, and anterior with a small cutaneous rim or in a short 

 tube. Interorbital space very narrow and a little concave. Opercle 

 with radiate strise above, each of which is produced beyond posterior 

 margin as a slender cutaneous process over gill-flap and beyond. 



Gill-opening large, extending forward about midway in length of 

 head. Rakers absent. Filaments small, about equal to orbital diam- 

 eter. Isthmus compressed, and surmounted with broadened sur- 

 face which is concave medianly. 



Scales only on trunk, except several on base of caudal, wliere they 

 are large. Scales cycloid, large, except on nuchal region anteriorly, 

 and in parallel series. Lateral line of large simple tubes and con- 

 tinuous, at first high or after fourteenth scale of its course midway in 

 depth of body. 



Dorsal of simple flexible rays, none apparently evident as spines, 

 tips of each free anteriorly, but becoming gradually more restricted 

 by membranes posteriorly where it is free from caudal. Origin of 

 dorsal beginning a trifle before posterior margin of preopercle. Anal 

 with three rather pungent short spines, anteriorly separated from rest 

 of fin, and nearly opposite origin of pectoral. Rest of anal, except 

 first few elongated rays which are more or less erect with first two 

 inclined forward and with well-developed membranes, similar to dorsal. 



