520 PROCEEDINGS OF THE ACADEMY OF [Julj, 



ing about first third in length. Tail tapering posteriorly and its pro- 

 files nearly straight. Head small, upper profile a little more convex 

 than lower and both rounded. Snout rather long, compressed and 

 profile strongly convex. Eyes small, close together, and upper with 

 about ^ its diameter in advance of anterior margin of lower. Posterior 

 margin of lower eye about same distance from gill-opening as anterior 

 margin of upper eye is from tip of snout. Mouth cleft large, a little 

 curved upward in middle and nearly horizontal in position. Teeth 

 very minute, merely an asperous edge to each jaw on dextral side, those 

 of sinistral side perfectly smooth. Dextral side with a broad fleshy 

 labial fold finely or minutely fringed. Tongue thick and fleshy. 

 Upper nostril midway in interorbital space and jvist below posterior 

 margin of upper eye. I^ower nostril a little behind anterior margin of 

 upper eye, close to gape of mouth and in a short fleshy tube. Inter- 

 orbital space narrow and a little concave. 



Gill-opening small, ascending about level with lower margin of upper 

 eye, and membrane forming a broad fold over rather narrow compressed 

 isthmus which has rounded edge. Rakers minute fleshy or cutaneous 

 points. Filaments rather long, longest about | of length of gape of 

 mouth. 



Scales rather finely ctenoid, small, and crowded on anterior third of 

 body and around its profiles, but becoming enlarged on median portion 

 of trimk posteriorly and tail. Lateral system of mucous pores triple. 

 Median series begins near tip of snout and extends to base of caudal 

 direct. Upper series confluent at its origin with middle series, runs 

 concurrent with dorsal profile but a short distance below till below base 

 of fifth dorsal ray, counting from caudal, where it ascends dorsal fin. 

 Lower series has its origin at front of mandible laterally, extending 

 along lower edge of preopercle and down lower side of head, and finally 

 concurrent and near lower profile of body till above base of fifth anal 

 ray, also counting from caudal, where it descends on the anal fin. 

 Intersecting scries connect occipital region of upper series with median 

 series and is then continued below to lower series. Along lower ante- 

 rior margin of snout upper series is continued some distance, after which 

 it ascends obliquely toward upper eye. 



Dorsal, anal and caudal confluent, margins of former two fins scal- 

 loped or a little emarginate between each ray. Caudal rather rounded. 

 Anal with first 4 rays apparently a little separate from rest of fin. 



Color in alcohol rather dark brown on sinistral side, with traces of 

 darker brown mottlings and blotches. Fins brownish, marginally 

 whitish, and mottled more or less basallv with darker brownish. Dex- 



