— 60 — 



not much longer than the body. Dorsal fin begins not 

 quite midway between tbe angle of the mouth and the 

 gill opening. In life greenish olive, head dark brown ; 

 gill opening in a black spot. Body with about 30 

 irregular vertical dark bands ; the first midway be- 

 tween the angle of the mouth and the gill opening ; 

 these bands extend to the dorsal fin and occasionally 

 unite at the edge forming an interrrupted dark mar- 

 gin, but they do not reach the anal fin, except on the 

 tail where they cover both dorsal and anal ; on the 

 lower portion of the middle of the body they are bro- 

 ken into irregularly disposed spots. 



W Oymnothorax elegans 



All the teeth uniserial ; mandible with about 1 6 

 teeth on each side, the four anterior ones being rather 

 larger than the rest ; canines moderately developed ; 

 the mouth cannot be shut completely. Posterior nos- 

 trils not tubular ; the anterior nasal tubes more than 

 one half the vertical diameter of the eye ; gill opening 

 a little wider than the eye. Snout produced, pointed, 

 1§ eye-diameters in length ; eye situated above the 

 middle of the cleft of the mouth, which latter is con- 

 tained 2^ times in the length of the head. The length 

 of the head is one fourth that of the trunk ; tail longer 

 than the body. In life the anterior portion of the body 

 is a pale yellow shading into reddish-brown on the 

 tail ; head and body with small white spots round on 

 the body, more irregular in shape on the tail. The 



