Analysis of species 
G-111 openings ventral, oblique or long¬ 
itudinal slits, anteriorly (superior¬ 
ly) with dupllcature of gill mem¬ 
branes, 
, Vertical fins present as low fold, 
1 
c , Space between gill opening and dor¬ 
sal origin 2 1/3 to 4 in head, 
polypphthalma,, 
2 
c , Space between gill opening and dor¬ 
sal origin 7 In head. 
orlentalls. 
c3. Dorsal origin at last fourth of bo¬ 
dy 
acutlceps 
, No vertical fins; head and trunk 1 1/ 
2 in tall; head 4 to vent. 
vulturls, 
^1 -f — 
Gill openings more or less ventral, 
vertical, oblique or longitudinal 
slits, their gill membranes without 
dupllcature, 
d^. Dorsal well developed or very 
low. 
