16 
PISCES THORACICI. PERCA. 
PERCA. 
GENERIC CHARACTER. 
Caput: opercilia squamosa, serrata. 
Membrajia branchiostega radiis septem. 
Corpus: linea lateralis cum dorso ar- 
cuata; pinna spinosa. 
The head: the opercula squamous, ser¬ 
rated. The branchial membrane has 
seven ossicles. 
The body: the lateral line arched like the 
back; the fins spinous. 
No. CXXI. 
Perca cauda bifida; cor pore vittis Jlavis fuscisque; spina secunda anali permagna. 
The Perch with a forked tail; the body striped with yellow and brown fillets; and the 
second anal spine very large. 
Called by the Natives Paikeeli. 
— _L _L 
B. vii. D. 27. P. 16. V. 6. A. 13. C. 18. 
The body oblong, compressed, squamous; the scales somewhat square, rounded behind, imbricate, tenacious. 
The head ovate, small, compressed, declivous, mostly squamous; rostrum naked. The mouth low, small, 
horizontal; lips thickish. Jaws short, extractile, the upper longest. Teeth numerous in both jaws. Tongue 
somewhat round, smooth, not tied; palate tuberculate in the fore part. Eyes high, large, orbicular, iris of a 
yellowish white. Nostrils large, oval, near the orbit. 
The opercula squamous, the first lamina serrated. The branchial aperture large, arched, the membrane 
exposed. 
The trunk. The back rises in an arch, carinate; the sides compressed; the breast convex, but the belly 
nearly straight; the tail broad and long. The lateral line less arched than the back, becomes straight where 
the dorsal fin ends. The anus much nearer the head than the tail. 
The Jins. The dorsal spines, the first two excepted, long, and form a high arch; the ramous rays declining 
are much shorter; the pectoral long, slightly falcate; the end of the first ventral ray setaceous; the second 
anal spine remarkably large ; the caudal not deeply bifid. 
The colour. There are five or six longitudinal fillets, yellow, and dusky brown, on the sides ; the breast and 
abdomen white; the pectoral and dorsal fins near the roots dotted with black. 
The length, ten inches. 
