1216 Catalogue of Malayan Fishes. [Nor. 



opercle blackish blue ; sides with distant rounded and irregular blackish 

 brown spots ; dorsal and anal pale brownish grey, transparent, minutely 

 dotted with black ; the dorsal immediately in front of tbe caudal, and 

 the latter itself, black ; ventrals white. Iris golden, annular ; rest 

 blackish blue. 



Right side. Brownish white ; abdominal cavity blackish blue, 



D 137. 



C 10, V 4, P 0, Br. VI. 



A 107. 

 254. 



Habit: Sea of Pinang. 



Bay of Bengal, Gangetic estuaries. 



Total length : 1 ft. 



Left side. The length of the head is 5| in the total. The dis- 

 tance from the oval muzzle to the anterior angle of the upper orbit is 

 11^ in the total length; the point proceeding downwards from the 

 muzzle projects a little beyond the symphysis of the lower jaw ; its 

 length equals the distance between the muzzle and the upper orbit. 

 The latter is situated in the centre of the length of the head, opposite 

 the middle of the upper lip ; the horizontal diameter is Jy of the 

 length of the head. The lower orbit is placed farther back a little in 

 front of the angle of the mouth ; it is slightly smaller than the upper 

 one. The vertical distance between the two equals the diameter of 

 the upper. Between both appears a very distinct oval aperture, 

 according to Buchanan Hamilton the posterior aperture of the nostril, 

 which has another above the upper lip in front of the lower eye. The 

 mouth, tongue, and dentition agree with P. grandisquamis. The 

 greatest vertical diameter, at the anterior third of the body is 6| in 

 the total length. On it appear 31 series of elongated, irregularly oval 

 scales with upwards of 37 radiating lines at the radical part. Those 

 of the anterior part of the body have the centre of the posterior margin 

 very finely ciliated, not rough to the touch ; in the rest of the scales this 

 margin is smooth and bluntly pointed. A straight line between the 

 opercle and caudal contains about 100 scales. The lateral line and its 

 ramifications resemble those of P. bilineata. The dorsal commences 

 very close to the point of the muzzle, \ of the distance from the latter 

 to the upper orbit,* the rays slowly increase towards the caudal, the 



