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The head is small; its length is contained about 

 two and two third times in the greatest height of the 

 body. Its upper profile is slightly convex and slopes 

 downwards. The snout is pointed. The distance from 

 the extremity of the snout to the anterior margin of 

 the eye is somewhat greater than the diameter of the 

 latter. The eye has a circular contour; its upper mar- 

 gin does not reach up to the upper profile of the head. 

 The posterior nostril is situated rather in front of and 

 higher than the eye; the anterior, situated considerably 

 lower than the posterior, is at a distance from it that 

 is rather greater than that between itself and the ex- 

 tremity of the snout. The cleft of the mouth is al- 

 most horizontal, extending back nearly to the posterior 

 margin of the eye. The lower jaw is shorter than 

 the upper. Its lower profile is slightly convex and 

 lacks the prominent angle backwards. Teeth are pre- 

 sent in both jaws. 



The pectoral fins are very rudimentary. The ver- 

 tical fins are not highly developed either. The dor- 

 sal fin has its origin directly in front of the vent; 

 the caudal fin is very short and rounded. 



The vent is situated about the middle of the 

 body. 



Scattered pigmentary spots are to be found on 

 the head in the neighbourhood of the gill-openings 

 and under the throat. Along the lower side of the 

 body there runs a row of these spots closely packed 

 and along the upper side a row also, but here sparser 

 and less regular. Along the bases of the dorsal, cau- 

 dal and anal fins a row of extremely minute closely 



