14. ELEOTRIS. 129 



is contained six times and a quarter or seven times in the total 

 length, the length of the head three times and two-thirds or four 

 times and a quarter. Head broad, depressed. The diameter of the 

 eye is one-sixth or one-seventh of the total length, and one-half of 

 the width of the interorbital space. The maxillary reaches to below 

 the eye. Teeth in \alliform bands, those of the outer series enlarged. 

 The length of the caudal fin is one-fifth of the total. Brownish, 

 with darker longitudinal streaks ; a black, red-edged ocellus on the 

 upper part of the base of the caudal. (Bl.) 

 Kivers of Western Borneo and Sumatra. 



42. Eleotris siamensis. 

 D. 6 I 10. A. 9. L. lat. 90. 



Twenty-two longitudinal scries of scales between the origin of the 

 posterior dorsal and the anal, forty transverse ones between the 

 anterior dorsal and the snout. The height of the body is contained 

 six times and two-thirds in the total length, the length of the head 

 four times. Head broad, depressed, with the snout obtuse ; the lower 

 jaw is prominent, and the maxillary extends to behind the vertical 

 from the centre of the eye. Teeth in villiform bands. Tlie diameter 

 of the eye is one-seventh of the length of the head, one-half of that 

 of the snout and of the width of the interorbital space. A small barbel 

 on each side of the upper jaw ; the head is covered with small scales ; 

 there are about ten between the posterior angle of the orbits ; the 

 snout is naked. Dorsal and anal fins much lower than the body : 

 one-half of the caudal is covered with thin scales ; its length is con- 

 tained five times and a half in the total. Brown ; the lower pai-ts 

 whitish, minutely punctulated with brown ; two oblique dark stripes 

 on the cheek, radiating from the eye. Dorsal fins variegated with 

 blackish, the other fins uniform blackish ; a black ocellus, edged with 

 whitish, on the upper part of the root of the caudal fin. 



Siam. 



a-c. Adult and half-grown. Siam. From M. Mouhot's Collection. 



lines. 



Total length 60 



Height of the body 9 



Length of the head 15 



Diameter of the eye 2 



Length of the caudal fin 11 



43. Eleotris macrodon. 



Bleek. Verh. Batav. Genootsch. xxv.,Ben(f. en Hind.p. 104. tab. 2. fig. I. 

 D. 6 I 10-11. A. 9. L. lat. 90-100. 

 Thirty-three longitudinal series of scales between the origin of 

 the posterior dorsal and the anal, sixty transverse ones between the 

 anterior dorsal and the snout. The height of the body is contained 

 four times and two-thirds or five times in the total length, the length 

 of the head four times and a fourth. Head broad, depressed, with 



VOL. III. K 



