ccl 



ike larger: deciduous ones on the vomer and palatines. Scales of 

 moderate size. Air-vessel divided by a constriction. Pyloric appendages 

 in moderate numbers. 



8. Therapon servus, Bloch. B. vi. D. 10-11/ T 1 , A. j, L. 1. 80, 

 L. tr. 12/27. Silvery, with three longitudinal dark bands having a 

 slight convexity downwards. Is found in some of the larger rivers as the 

 Hooghly, occasionally above tidal influence. It attains to twelve or 

 thirteen inches in length. 



Genus DATNOIDES, Bleelcer* 



Branckiostegals six. Pseudobranchia. Body somewhat elevated. Eyes 

 of moderate size. Inter-maxillaries very protractile. Pre-opercle serrated ; 

 opercle with short spines. One dorsal fin, with a deep notch, having 

 twelve stout spines, anal with three. Caudal rounded. Scales rather small. 

 Air-vessel simple. Pyloric appendages few. 



9. Datnoides polota, Ham. Buch. Nga-Tcya, Burm, B. vi. D. 

 n l?. , A. |, L. 1. 48, L. r. 70, L. tr. 12/26, Caec. pyl. 5. Brown, 

 with six or seven narrow black vertical bands on the body, and others 

 radiating from the orbit. Is found throughout the lower portions of 

 the Ganges and Irrawaddi> ascending above tidal reach : it attains 

 about 12 iaches in length. 



Family SCI^NID^;, Cuv. 



Branchiostegals seven, tseudobranchise sometimes concealed. Body compressed and 

 rather elongate. Eyes lateral, of moderate or small size. Mouth in front of or 

 below snout. Cheeks unarmed : opercles sometimes weakly armed. Muciferous 

 system on the head well developed. Teeth in villiform bands : canines present 

 in some genera, but neither cutting nor molar ones in the jaws : palate edentulous. 

 Two dorsal fins, the second much more developed than the first, or than the anal : 

 spines of first dorsal usually feeble: anal With two spines: pectoral rays 

 branched : ventrals thoracic, having one spine and five rays. Scales ctenoid. 

 Lateral line complete, often continued on to the caudal fin. Stomach csecal. 

 Pyloric appendages generally few. Air-vessel, when present, as a rule> with 

 branching or elongated appendages. 



Genus SVi^NA, Cuv. 



Johnius, Bloch : Corvina, pt, Cuv. : Leiostomus, pt., Cuv. & Val. : 

 Homoprion, Holb. 



Pseudobranchi(B. Body oblong. Eyes of moderate size, and tie inter-or- 

 bital space rather broad and slightly convex. Snout rounded ; the upper jaw 

 longer than the lower, or both equal. Cleft of mouth horizontal or slightly 

 oblique. Barbels absent. The outer row of teeth generally the largest : 

 canines absent. Air -vessel present. Pyloric appendages few, or in moderate 

 numbers. 



This genus has been subdivided artificially, in accordance to the 

 length of the second anal spine, as follows: (1) weak and about half 

 the length of the first ray> Sciana : (2) moderately strong and nearly two- 

 thirds as long as the first ray, Johnius : ( 3) very strong and about 

 equalling the first ray in length^ Corvina. 



10. Scicena coitor, Ham. : Buch. Vella Jcetchellee, Tarn. : Bolahl and 

 PuU/teri'ki,Ooriah: Nga-pok-thin, Burm. B. vii. D. 10/27, A. f, Csec. 



