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FISHES. 
with the mouth placed under its base ; body broad and depressed, 
covered with plates ; branchial openings situated on the side, with 
two ventral ones behind them; pectoral fins very large; dorsal 
and anal fins placed opposite to each other. 
Pegasus Draco — The Dragon Pegasus. 
Plate LXXVI. fig. 9. 
Breast somewhat quadrangular, with several radiated bony 
plates; each side of the abdomen with a lengthened cirrus; tail 
long, narrow, enveloped in a case of eight scaly annulations ; 
pectoral fins large, with the margins scalloped. Four inches 
long. Inhabits the Indian seas. 
ORDER VI. 
MALACOPTERYGII ABDOMINALIS. 
With a bony skeleton ; jaws complete ; pectenated branchiae ; 
rays of the fins soft, with the exception of the first rays of the 
dorsal or pectoral fins, which are sometimes hard; ventral fins 
placed far behind on the abdomen. 
FAMILY I.-SALMONIDES. 
Genus 1.—SALMO.— Cuvier. 
Generic Character .—The upper jaw formed principally by the 
maxillary bones; mouth large, provided with teeth ; ventral fins 
opposite the centre of the first dorsal one, and the adipose fin 
placed opposite the anal one; branchial membrane having more 
than eight rays. 
Genus 2. OSMERUS.— Artedi. 
Generic Character. —Mouth placed at the extremity of the 
snout; two irregular rows of teeth in each palatine bone ; head 
compressed; scales very smooth, hardly perceptible; the two 
dorsal fins and second adipose divested of rays, the first more 
remote from the head than the central fins; branchial membrane 
with eight rays. 
