Q4 



Cope.] •^^ [Jan. 5, 



river, this species differs iu the proportions of the eye and head, the much 

 longer barbels, much shorter adipose fin, etc. 



PiMELODUS NiGRiBARBis Blgr., Proceecls. Zool. Soc, London, 1891, 

 p. 233, PI. XXV, Fig. 1. 



Several specimens. 

 LoRiCARiA CADE^ Henscl, Archiv. f. Naturgesch, 1868, p. 369. 



Represented by four specimens of rather small size. The muzzle is 

 depressed and is acuminate when viewed from above, and its length from 

 the orbit enters the length of the head to the posterior extremity of the 

 occipital plate two and a half times. The edges of the muzzle are hispid 

 but not bristly. The abdomen is covered with a continuous series of 

 scales, of which the lateral are elongate and directed forward, and the 

 median smaller and in two rows. Those between the ventrals are distinct 

 but solidly united, and there is a single aual which is notched in front for 

 the anus. The scuta of the nape are furnished with obtuse Iveels, one on 

 each side, which form a pair of ridges which converge forwards and are 

 continued on the occipital plate until they approach quite closely. They 

 then diverge and terminate above the postorbital plate. The third median 

 nuchal plate is not ridged, but a lateral plate which joins it and the sec- 

 ond nuchal on each side has a keel. There is no keel posterior to this, 

 nor any between it and the superior keel of the lateral line. The space 

 between the nostrils forms a median narrow ridge which bifurcates pos- 

 teriorly, each half disappearing above the middle of the supraorbital 

 border, from which it is separated by a groove, which is a posterior con- 

 tinuation from the nareal fossa. The central premaxillary ridge is 

 divided by a narrow median groove, and a shallow groove bounds the 

 lateral plates on each side, terminating in a preorbital fossa. Scales of 

 lateral line, 28-29 ; the lateral keels uniting on the eighteenth scale. 

 Diameter of eye, without the shallow notch, entering length of head 5.5 

 times and interorbital width 1.25 times. 



The length of the head to the end of the occipital plate enters the 

 length (less the caudal fin), 5.25 limes ; and the width of the head enters 

 its length 1.4 times; the depth of the head enters the length of the same 

 twice. Premaxillary jaws not separated by an emargination, but firmly 

 united. Teelh, f. Lips coarsely and shortly fringed all round, the pos- 

 terior coarsely tubercular and not notched posteriorly. Beard shorter 

 than diameter of eye. The dorsal spine enters the total length (less cau- 

 dal fin) 4.25 times, and the anal spine enters the same 5.6 times. Radii, 

 D. I. 7; P. I. 6; V. L 5; A. I. 5. The pectoral fins just reach the ventrals, 

 and the ventrals the anal. The marginal rays of the caudal are not 

 stronger than those of the other fins. Its border is concave, and the 

 superior apex is a little longer than the inferior, and it is without filamen- 

 tous prolongation. 



Color light brown above, yellowish below. Five brown cross-bands on 



