Analysis of species 
. Premaxillary teeth on under surface of snout ex¬ 
posed before closed mandible tip, 
bl. Mouth cleft 3 in head; vomerine teeth biserial. 
arenlcola, 
b^. Mouth cleft 2 1/10 in head; vomerine teeth uni¬ 
serial, paucldens^ 
, Premaxillary teeth on under surface of snout not 
exposed before closed mandible tip, 
c^. Mouth cleft 4 in head; vomerine teeth unl- 
serial. 
calamus. 
c^. Mouth cleft 3 in head; vomerine 
teeth bi-^- 
serial. 
d^. Head nearly 5 to vent; pectoral 4 in head, 
playfalrii 
d^. Head 3 1/3 to vent; pectoral 2 in head. 
ts^inopter^ 
c^. Mouth cleft less than 3 in head; vomerine 
teeth broad band of 3 or 4 series of teeth 
e^. Dorsal origin midway between hind eye 
edge and gill opening, ollvieri 
e , Dorsal origin above gill opening. 
chinensls 
e , Dorsal origin behind pectoral base, 
cheilopogon 
