76 SILUUIDiE. 



is iusertod below the end of the dorsal, and does not extend back- 

 wards to the origin of the anal. 



River Coic (Aleppo). 

 a. Six inches long : bleached. — One of the typical specimens from 

 A. Russell's Collection. 



2. Macrones cavasius. 



Pimelodus cavasius, Ham. Buck. Fish. Gamj. pp. 203, .379. pi. 11. fig. 67. 

 Bagrus cavasius, Cm. ^- Val. xiv. p. 409 ; Jacqiiem. Voy. Ind. Poiss. 



pi. 16. fig. 2; BleeJc. Verh. Bat. Ge7i. xxv., Hindost. p. 113. 

 Pimelodus aeengtee, Sykes, Trans. Zool. Soc. ii. p. 374. tab. 66. fig. 2. 



D. 1/7. A. 11. P. 1/8. V. 6. 



The height of the body is a little less than the length of the head, 

 and one-fifth of the total (without caudal); head as broad as high, 

 its greatest width being two-thirds of its length ; snout scarcely de- 

 pressed, its extent being rather more than one-third of the length of 

 the head. The upper jaw is the longer ; vomerine teeth in a narrow, 

 uninterrupted, crescent-shaped band. The fonticulus on the upper 

 side of the head extends on to the base of the occipital process, and 

 the latter to the basal bone of the dorsal spine. Nasal barbels short, 

 maxillary barbels extending to the anal or caudal fin ; mandibulary 

 barbels of unequal length, the outer being longer than the head. The 

 dorsal spine is rather feeble, half as long as the head, smooth, not 

 serrated. The soft dorsal fin with broad base, pointed, the first ray 

 being higher than the body. The adipose fin commences immediately 

 behind the dorsal, and is thrice, or nearly thrice, as long as the latter, 

 and lower than the hinder portion of the tail. Caudal fin deeply 

 forked, with the lobes pointed. Pectoral spine as long as the head 

 without snout, strongly serrated interiorly, extending somewhat be- 

 yond the origin of the dorsal. Ventral inserted immediately behind 

 the dorsal, not extending on to the anal. Silvery, the upper part of 

 the dorsal and the maxillary barbel blackish. 



Dukhun, Mysore, Pondicherry, Bengal. 



a. Six inches long. Dukhun. From the Collection of Colonel Sykes. 

 h-cl. Four and five inches long. India. 



3. Macrones micracanthus. 



BagTus micracanthus, BleeJi. Vvrli. Bat, Gen. xxi., Silur. Batav. p. 23, 



and Prodr. Silur. p. 161. 

 Hypselobagrus micracanthus, Bleek. Atl. Iclith. Silur. p. 59. tab. 74. 



fig. 3. 



D. 1/7. A. 11-12. P. 1/8-9. 



The height of the body is one-fourth or one-fifth of the total length 

 (without caudal), the length of the head one-fourth ; head a little 

 broader than high, granulated above. The fonticulus on the upper 

 side of the head does not extend to the base of the occipital process, 

 which is narrow, reaching the basal bone of the dorsal spine. The 

 teeth on the palate form a crescent-shaped band. The nasal barbels 



