1014 Catalogue of Malayan Fishes. [Oct. 



Yet Mr. McClelland, by way of illustrating the description of this 

 species without appendages to the air vessel, has republished a copy of 

 Buchanan's drawing of P. sele (1. c. PL VI.) the airvessel of which 

 Mr. McClelland himself had previously (Journ. As. Soc. Vol. VIII. 

 1. c.) described as presenting on either side about " twenty-two tende- 

 nous attachments." Thus, in a paper avowedly written to call attention 

 to the airvessel (the isinglass) of one species, and to instruct the reader 

 how to distinguish this species from others, not only are two species 

 confounded, but the confusion is increased by publishing a description 

 of a species, totally distinct from the one intended to be described, 

 and by illustrating that description by means of a figure of another, 

 different species. 



Polynemus sextarius, Bloch, Schneider. 



Polynemus sextarius, BL Schn. 18, PL 4. 



Polynemus sextarius, Cuv. and Val. III. 388. 



Polynemus sextarius, Bleeker, Berh. Batav. Gen. XXII. 59. 



Young. Head above and back yellowish green, lighter on the 

 sides ; abdomen pale silvery ; opercle silvery with a blackish spot ; 

 another black spot, nearer the back, between the head and the anterior 

 dorsal ; fin-membranes greyish white, minutely dotted with black 

 towards their free margins ; filaments white. Iris silvery, black 

 towards the upper part. 



D 8— 1/12, C }7{h A 3/12, V 1/5, P 14, Filaments 6, Br. VII. 



Habit. — Sea of Pinang. 



Tranquebar, Coromandel, Batavia. 



Total length : 4 inch. 



The length of the head is J of the total measured from the muzzle 

 to the centre of the posterior caudal margin. The orbit is oval 

 obliquely situated : its greatest diameter, parallel to the upper jaw, is 

 ^ of the length of the head. The ascending margin of the preopercle 

 is finely toothed, the lowest tooth longer than the rest. The length 

 of the third dorsal spine, the longest, is little less than the greatest 

 vertical diameter of the body ; the length of the second dorsal spine 

 equals the extent of the base of the anterior dorsal fin. In height the 

 fin itself slightly exceeds the posterior. The lateral line is nearly 

 straight ; from the root of the caudal it deviates a little downwards 



