66 Annals of the Carnegie Museum. 



Head 3.5, depth 3.8 ; D. 11, A. 26 to 28; scales 5-32 to 34-3; 

 eye 2.5 in head ; interorbitals less than the eye, about 3 in the head. 



Compressed, head at the base of the occipital process |- of the 

 greatest depth. Preventral region rounded, with complete median 

 series of ten or eleven scales. Postventral region narrow. Predorsal 

 region rounded with complete median series of nine scales. 



Occipital process about one-fifth of the distance from its base to the 

 dorsal, bordered by two scales. Interorbitals slightly convex. Frontal 

 fontanel triangular, narrower than the parietal, three-fourths the length 

 of the parietal fontanel without the occipital groove. Second sub- 

 orbital leaving narrow naked margins behind and below, the lower 

 margin being a mere line. Snout short, -| the length of the eye. 

 Mouth small. Maxillary less than the eye, about 3 in the head j 

 mandible equal to the eye, about 2.5 in the head. Premaxillary with 

 one or two narrow tricuspid teeth in the outer row and five three- to 

 five-pointed teeth in the inner row. Maxillary with two or three 

 broad three- to five-pointed teeth. Dentary with four or five three- to 

 five-pointed teeth in a graduated series followed by several minute 

 conical or three-pointed teeth on the sides. 



Scales cycloid, regularly imbricate, no interpolated scales or rows 

 of scales ; striae few, variable in number. Caudal naked. Anal sheath 

 short of five scales covering the base of the first eight or nine rays. 

 Pores developed on seven scales, lateral line very slightly decurved. 



Origin of the dorsals equidistant from the snout and caudal, penul- 

 timate ray little more than one-third the longest which is 3.8 into the 

 length. Origin of the anal on the vertical from the fourth dorsal ray. 

 Anal emarginate, the longest ray twice into the length of the base. 

 Ventrals on the vertical from the first or second scales in front of the 

 dorsal. Ventrals reaching the third anal ray ; pectorals reaching just 

 beyond the base of the ventrals. 



Humeral spot small, black, vertically elongate. No caudal spot. 

 Lateral stripe extremely narrow and line-like, interrupted and very 

 faint. Scales of the back and upper half of the sides outlined with 

 dusky. Dorsal with an intense black bar on the outer half of the an- 

 terior six or seven rays. The tips of the second, third, and fourth rays 

 and a streak directly below the black bar, white. Last half of anal 

 rays with blackish tips. Caudal, anal, ventrals, and pectorals a little 

 dusky. 



