Lower antorbital entirely 
in advance of vertical 
from anterior margin of 
pupil; Dorsal 14 or 15; 
Anal 14 or 15. ----- 
----- - ^perapioillatua. 
Two antorbital organs on each side, upper rounded, above 
nostril and entirely above lower antorbital, which 
long and narrow and usually with narrow dorsal ex¬ 
tension between nostril and eye reaching to or 
nearly to ventral edge of upper antorbital; lower 
\ 
antorbitals of 2 sides always widely separated 
from each other; no supraorbital or separate sub¬ 
orbital organs. 
1 
£ • Upper antorbitals large, 
circular, only 
separated from each 
other by median inter¬ 
space not wider than 
half their diameter; 
lower antorbital 
forming angle dividing 
into upper and lower 
portion without 
separating one from 
another. - — - lucidus. 
