1248 
Analysis of species 
j;ropteryglus « Tall subequal, longer or shorter 
than head and trunk combined. 
Uniform brown; depth 20 to S3. 
1 
. Tail equals or much longer than head and 
trunk; head 7 to 8 2/5. concolor. 
2 ' * '— 
. Tall 1/3 total length; head 13. 
brevicauda. 
Color mottled, marbled or spotted. 
1 . 
o . Grill opening midway In body depth; 2 or 3 
rows of teeth in Jaws. 
e . Head 7 to 7 1/2; blackish, with vari— 
aole pale spots. macrocephalus. 
2 f ' '----—- 
e . Head 8 1/2; brownish, with numerous 
variable small waved cross bands. 
fasciolatus* 
3 ' ~ 1 —'—'- 
e . Head 9 to 11; brownish, marbled darker. 
4 
e 
marmoratus. 
• Head 11; muzzle yellow; body with 2 or 
3 rows of la.rge dark blotches. 
polystilus. 
Gill opening high above middle of body 
depth. 
