PERCIFORMES
No. 199: SCIAENIDAE. D IX-XIII,23-31; A Il,6-9; scales cycloid or ctenoid,
covering head and body and extending onto median fins; LL extends
to end of C; no teeth on vomer or palatines.
No. 200: MENIDAE. D III-IV,40-45; (spines lost with age); A 30-33; body
extremely compressed, disc-like, breast sharp; scales minute, deciduous, barely visible; mouth protrusile; first 2 V rays elongated.
No. 201: LEIOGNATHIDAE. D VIl-IX,15-17; A 1ll,13-15; body compressed, slimy; scales inconspicuous; mouth greatly protrusile; gill membranes united with isthmus.
No. 202: LOBOTIDAE. D XI-XIl,15-16; A IlI,l1-12; scales moderate,
ctenoid, covering head except preorbital region and jaws; jaws with
bands of small slender teeth; vomer, palatines and tongue toothless;
preopercle coarsely serrate; gill membranes narrowly united, free
from isthmus.
500
No. 203: PENTACEROTIDAE. D IV ,25-27 or XIl-XV,8-13 ; A IlI-VI,7-10;
head bones mostly exposed, rugose, covered with small spines and
knobs in young; scales ctenoid, small to moderate.
No. 204: POMACANTHIDAE. D XI-XV,15-25 ; A lll-IV,1 6-23; scales with
ridges ending in sharp points; preopercle serrate, with a strong spine
at the angle; mouth with bristle-like, generally tricuspid teeth ; gill
membranes joined to isthmus.
No. 20S: CHAETODONTIDAE. D XI-XVIl ,14-28; A III-IV, 14-23; scales
finely ctenoid (smooth); preopercle smooth or finely serrate, but no
large spine at the angle; mouth with band of bristle-like teeth; gill
membranes free from or joined to isthmus.