490 CICHLID.E. 



4. PELMATOCHROMIS MICRODOT. 

 (Plate LXXXIX. fig. 4.) 



Boulenger, Ann. & Mag. N. H. (7) xvii. 1906, p. 441. 



Depth of body equal to length of head, three times in the total length. Head 

 large, with slightly concave upper profile; snout as long as broad, once and one-third 

 the diameter of the eye, which is four times in the length of the head, once and 

 one-fourth in the interorbital width, and equals the depth of the scaly part of the 

 cheek below the eye ; prseorbital a little narrower than the eye ; lower jaw not 

 projecting ; mouth oblique ; maxillary extending to below the anterior border of the 

 eye; teeth very small and few, in three series in both jaws; three series of scales on 

 the cheek ; large scales on the opercle. Gill-rakers very short, the posterior strongly 

 expanded, much broader than long, 9 on lower part of anterior arch. Dorsal fin with 

 15 spines and 9 soft rays ; spines increasing in length to the last, which measures 

 two-fifths the length of the head ; longest soft rays three-fifths the length of the head. 

 Anal fin with 3 spines and 8 soft rays ; third spine longest, as long as and stouter than 

 the last dorsal. Pectoral fin as long as the head, extending to above the base of the 

 third anal spine. Ventral fin reaching the origin of the anal. Caudal fin obliquely 

 truncate, upper rays longest. Caudal peduncle once and one-third as long as deep. 

 Scales denticulate, 32 -jj ; lateral lines |y. 



Olive above, grey beneath, with six ill-defined darker vertical bars on the sides ; a 

 blackish opercular spot ; fins grey, posterior part of dorsal and caudal with small 



Measurements (in millimetres). 



Total length 175 



,, ,, (without caudal) 140 



Greatest depth of body . . 47 



Length of head 47 



Width of head 22 



Length of snout 16 



Diameter of eye 12 



Interorbital width 15 



Length of last dorsal spine 19 



„ longest soft dorsal ray 29 



„ third anal spine 19 



„ longest soft anal ray 28 



., pectoral 47 



