1849.] Catalogue of Malayan Fishes. 987 



are of nearly equal length : about one half of the vertical diameter of 

 the body. The spine of the posterior dorsal fin equals in length the 

 longest anterior, but the second branched ray, which slightly exceeds 

 the first and third, is f of the vertical diameter of the body. The 

 distance between the last, double, ray of the posterior dorsal, and the 

 root of the caudal equals the length of the head. The caudal is slightly 

 forked : the length of the centre £ of the total. The basal extent of the 

 anal is a little less than the length of the head ; the second and third 

 branched ray are the longest, equalling the corresponding rays of the 

 posterior dorsal fin. The distance between the sixteenth double anal 

 ray, and the root of the caudal is but about one half of that between the 

 latter and the last ray of the posterior dorsal, or about \ of the length 

 of the head. The first branched ray of the ventrals equals in length 

 the second spine of the anterior dorsal. The length of the transparent 

 pectorals is about -| of the vertical diameter of the body. 



This species is closely allied to Apogon lineolatus, Ehrenberg, the 

 peculiar colouration is strikingly similar in both, but it differs from the 

 latter, and the other species, in the greater number of anal rays, and in 

 the toothed appearance of the second dorsal spine. A single specimen 

 was observed at Pinang in July 1845. The fishermen asserted it to be 

 of very rare occurrence. The very capacious stomach, occupying the 

 whole length of the abdominal cavity, was expanded with minute 

 shrimps ; the intestinal canal is less than one third of the total length, 

 and without ccecopyloric appendages. The rounded acoustic bones are, 

 for the size of the fish, remarkably large. 



Gen. Chanda,* Buchan. Ham. 1822. 



(AmbassiSy-f Cuv. and Val. 1828. — Hamiltonia,% Swainson, 1839.) 



* Not from x av ^°s, hians, as stated by mistake in Nomenclator Zoologicus, 

 (Pisces, p. 15,) but from Chanda, the vernacular name, applied in Bengal to the 

 Genus. (Chandee, Hind. Silver.) 



f MM. Cuvier and Valenciennes observe that the two first species of Chanda, 

 described by Buchanan, belong to a different genus, and they have for that reason 

 cancelled Chanda. Buchanan himself expressed doubts as to the propriety of plac- 

 ing his first species in that genus. 



t Fam. Zenidce (Scombroids, Bonap.) Swainson, Fishes, 8fc. Vol. II. p. 250. 

 " Hamiltonia ovata, Sw., Ham. fig. 37, and H. lata, Sw., Ham. fig. 37." Both 

 references are errata. 



