— 48 — 



in the total length (without the caudal fin) , and the 

 length of the head 3| times in the same ; the diameter 

 of the eye is from 3^ to 3f times in the length of the 

 head, and equal to the distance of the anterior nostril 

 from the end of the snout ; in half grown individuals 

 equal to the interorbital space, but less than this 

 space in old individuals. The cleft of the mouth nearly 

 horizontal, reaching backward almost to a vertical 

 from the front margin of the orbit. Prgeoperculum 

 equally sereated on its posterior border, indistinctly so 

 on its inferior edge. 



The dorsal begins above the posterior margin of 

 the operculum, the fourth, fifth and sixth spines being 

 the longest. Base of the soft dorsal, and especially of 

 the anal, fleshy. The second anal spine stronger and 

 a little longer than the third, two eye-diameters in 

 length, and decidedly exceeding the length of the 

 dorsal spines. Caudalis truncated ; ventrals equal, or 

 nearly equal to the pectorals. Scales on the head ex- 

 tend to a little in front of the nostrils ; those of the 

 cheek not nude, smaller than those of the operculum^ 



Brown in life, with a slight tinge of yellow, ver- 

 tical fins and head almost black ; pectorals greenish ; 

 lips and parts around the mouth vivid red. In alco- 

 hol uniform olive brown. 



Chu'todon cmromarginatus 

 D. 14/27-28. A. 3/24-25 

 Snout produced moderately, longer than the dia- 



