ANABAS. 



443 



the body, just in front of the root of the caudal fin ; pectoral and ventral fins of a pale 

 clear yellowish orange, the other fins greyish brown; iris bronzy or copper-colour 

 The black blotch in front of the caudal fin may be quite indistinct in living specimens. 

 Total length 160 millimetres. 



Measurements (in millimetres) and numbers of fin-rays and scales. 



Total length (without caudal) 



Greatest depth ol body , 



Length of head 



Width of head 



Length of snout 



Diameter of eye 



Interorbital width 



Length of last dorsal spine , 



„ longest soft dorsal ray 



,, last anal spine 



„ longest soft anal ray 



Number of dorsal spines 



„ „ soft rays 



„ anal spines 



„ soft rays 



„ scales in a longitudinal series 



1. 



2. 



3. 



4. 



123 



95 



87 



77 



50 



41 



37 



33 



38 



33 



30 



28 



24 



18 



17 



17 



7 



7 



6 



6 



9 



7 



7 



7 



13 



11 



10 



11 



15 



14 



13 



13 



20 



19 



18 



17 



16 



13 



13 



10 



26 



20 



20 



15 



18 



18 



17 



18 



10 



10 



10 



9 



10 



10 



10 



10 



11 



11 



10 



10 



29 



30 



28 



28 



6o 

 21 

 23 

 13 



11 



15 

 10 

 16 

 18 

 10 

 10 

 10 

 28 



1. Gondokoro. — Petherick (Type.) 

 3. Gharb-el-Aish. — Loat. 



2, 4, 5. Fashoda. — Loat. 



I have counted the fin-rays in twenty specimens, without finding any variation in 

 the number of anal spines (constantly 10) ; twelve specimens have 10 soft anal rays, 

 eight have 11. In the dorsal fin I find the following variation in the number of 

 rays: — Fifteen specimens, including the type, have XVIII 10, two have XVII 10, 

 one has XVIII 9, one has XIX 10, and one has XIX 8. 



3l2 



