26 PROCEEDINGS OF THE ACADEMY OF [Feb., 



GymnothoTax stigmanotus sp. nov. Fig. 6. 



Head 6f ; depth at vent 13f ; head width 3£ in its length; head 

 depth If; snout 5f; eye 12$; mouth 2\; interorbital 9; head 3f 

 to vent. 



Body long, well compressed, trunk rather deep, sides flattened, 

 and tail tapering in rather long slender point from vent. 



Head large, compressed, rather deep, with slightly swollen pharynx, 

 flattened sides scarcely constricted below, attenuated in -front, and 

 upper profile indented above eye. Snout conic, tip and surface 

 convex, basal width If its length. Eye rounded, closer to upper 

 profile than mouth, about midway in gape of latter, and without 

 eyelid. Mouth large, horizontal, and completely closing. Lips 

 rather tough and fleshy, minutely papillose. Teeth conic, mostly 

 erect, subequal, strong, edges entire, uniserial in jaws, posteriorly 

 or laterally a little inclined backward. In upper jaw each side 5 

 large erect conic canines before eyes, and 2 below latter, though 

 these a little smaller. Medianly on premaxillary region or well 

 before eye, series of 3 enlarged conic depressible canines, last largest. 

 Mandible with uniserial teeth, 4? enlarged erect conic canines each 

 side in front, followed by mostly equal row of close-set backwardly 

 directed and rather compressed teeth. No vomerine teeth now, but 

 depressions or little concavities, which would indicate that if teeth 

 occur they are deciduous?. No tongue. Mandible equal with snout 

 tip in front, surface convex, rami low and strong. Front nostril in 

 short fleshy tube, length 2 in eye. Hind nostril simple pore little 

 before eye front. Interorbital space convex. Occipital region well 

 swollen and bulging rather abruptly down to interorbital in profile. 



Gill-opening a little below median axis in body, but little inclined 

 from horizontal, length about If in snout. Pharynx with about 

 a dozen deep grooves longitudinally each side and below. 



Skin smooth, tough and thick, especially along bases of dorsal 

 and anal. Along each upper lip 5 pores well above lower edge, first 

 close before nasal tube, second close behind nasal tube, third little 

 before middle in snout, fourth a little before front eye edge and 

 fifth below hind eye edge. On snout above a pair of wide-set pores 

 between nasal tubes, and another a little before third upper labial 

 pair, well superior on snout. About 5 pores on each mandibular 

 ramus. L. 1. not evident. 



Dorsal origin apparently near last fourth in space between hind eye 

 edge and gill-opening, fin high, especially behind, where continuous 

 with caudal. Latter rounded, length about If in eye. Anal like 

 dorsal, only lower. Vent close before anal. 



