1602 
Analysis of species 
♦ « 
1 
a. . Bathypterols. Upper group of pectoral rays 
4 or less. 
1 ' 
b . Lower edge of caudal basally with distinct 
or prominent notch. 
1 * 
c . Anal origin well behind end of dorsal. 
du buls. 
2 . , 
c . Anal origin below dorsal base or immedi¬ 
ately, behind vertical from its termin¬ 
ation. 
1 
d . Head 5 1/2; lower caudal rays with 
swollen tips but slightly shorter 
than upper rays. ater. 
O 
d . Head less than 5; lower caudal lobe 
more or less longer than upper, 
often with separately produced rays, 
atrlcolor . 
2 
b . Lower edge of caudal without notch. 
~ - 'flF J 
e^. Anal origin below middle of dorsal. 
JLonglpes. 
e2. Anal origin below end of dofsal fin 
base of posterior 
