725 



Measurements 



Total length 



Length to base of caudal . 

 Length of head .... 



322 

 280 



69 



57 

 151 

 130 



17,5 



10,5 



12 



39 



16 



mm. 



Height of body above vent . 



From snout to vent . . 



From vent so end of anal . 



Height of caudal peduncle . 



Diameter of eye .... 



Interorbital area .... 



Base of first dorsal 



Length of snout .... 

 The length of the head is thus contained 4,66 times, and the height 

 of the body over the vent 5,66 times, in the total length. The diameter 

 of the eye is contained 6,59 times in the length of the head; it is a 

 little less than the interorbital area, and considerably shorter than the 

 snout. 



As compared with the younger specimens, this full-grown female 

 has a relatively larger head and a larger body (tip of snout to vent) in 

 proportion to the total length, and a smaller diameter of eye. These 

 changes take place more or less gradually with the growth of the indi- 

 vidual, as will be seen from their proportions in the 4 specimens hitherto 

 described« 



Eye in Head in 



length of head total length 



a. Total length 183 mm (type specimen] 5,85 5,22 



b. - - 213 - - - 6,14 4,95 



c. - - 260 - (Steindachner) about 7,0 about 4,70 



d. - - 322 - (full-grown) Ç 6,59 4,66 



In this specimen, moreover, the interorbital area has become wider 

 than the diameter of the eye, while in the younger specimens the two 

 were of equal width. 



The body proper (tip of snout to vent) is considerably longer than 

 the distance from the vent to the termination of the anal (about 2 orbital 

 diameters). In younger individuals the vent is about midway between 

 the tip of the snout and the termination of the anal. 



The first dorsal ray in this specimen measures only 14 mm (but 

 appears to be a little defective, and has probably been a few millimetres 

 longer). 



The fins and the number of their rays exhibit no divergence. On 

 the anterior portion of the lateral line (upto its descent towards the 

 vent), there are 11 pores on one side, and 13 on the other. 



