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PISCES THORACICI. TRIGLA. 
of divers forms, but chiefly lozenge, and extending into two long, acute, triangular processes, which reach the 
first dorsal fin. The mouth horizontal, under the rostrum, rather large; lips thickish. Jaws extractile, the 
under shorter than the upper. The teeth small, numerous, granulous. Tongue short, round, obtuse, smooth, 
bridled. Palate smooth. Eyes supreme, large, orbicular, protuberant, iris yellow; the superior edge of the 
orbit sharp, and by rising high on each side makes the crown appear deep channeled. Nostrils double, in a 
groove before the orbit. 
The branchial opercula consist of three squamous laminae, rough, angular: the first oblong-triangular, 
margin serrated; the margin of the second lengthened into a long, sharp, serrated process; the third small, 
ending in a pointed, soft flap. The branchial membrane partly exposed, consisting of six rays, the two lower 
very small, the others distinct, distant, and united by what might be called a seventh ossicle. The aperture 
lateral, small. 
The trunk. The back nearly straight, furrowed, sides convex; abdomen and throat bellied, but sometimes 
plane; the tail a little angular, compressed. 
The branchiae tuberculate on the inner side. Lateral line not visible. 
The Jins. Two dorsal: the first of five, soft, declining spines; the second of eight simple rays, declining 
a little also. The pectoral fins expand into wings as long as the body, the first and last rays shortest, giving 
the wing a rounded appearance: the last rays of the wing gradually shorten, as in the figure. The ventral 
fins are long, narrow, acuminate; the anal, opposite to the second dorsal, has six assurgent, ramous rays; the 
caudal slightly falcate. 
At the division of the bony processes on the back, there is a single soft ray exceeding an inch in length; 
between which and the dorsal fin is an oval-form prickle pointing backwards, and another similar between the 
first and second dorsal fin. On each side of the tail, at nearly equal distances, between the second dorsal and 
caudal fins, are three remarkable semilunate, serrated squamae. 
The colour. The head and back of a dark red, with some round spots of dusky-green; the sides of a lighter 
red; belly white; dorsal, pectoral, and caudal fins, are spotted also with dark green spots; the ventral and 
anal light coloured. 
Length, usually eleven inches; but the subject drawn did not exceed seven. 
REMARK. 
This species of flying fish is not common at Vizagapatam, 
