3^ 
The macrurids are found in all seas of "the globe, in depths 
of from 70 to upwards of 5000 meters, though living cniefly in tropical and 
temperate regions. The macrurids doubtless evolved in more recent geological e? 
epochs, their affiliations suggesting the more littoral gadoids. As Weber 
and Beaufort say "They are probably still in course of local development and 
no conspicuous breaks have yet been established by dying out of intermediate 
forms to separate them in more conspicuous groups '. 
/sis of Genera 
1 
a • First gill arch without membranous fold restricting 
first gill slit; gill rakers lanceolate; second dorsal 
ray not enlarged or spine like; hind part of dorsal 
more developed than hind part of anal* 
# Two separate dorsal fins* 
0 • Macruroninae* Vomerine teeth present; jaw teeth 
uniserial or biserial; anal mostly e leva tea. forward 
d 1 . Front of anal lobate; vent anterior, nearly between 
ventrals; ventral area striate*—«*-Steindachnera 
d 2 . Front of anal not lobate; vent posterior, close 
before anal; no ventral striae.* 
Maeruronus. 
2 
Bathygadinae« No vomerine teeth; teeth in bands in 
c 
jaws; anal uniformly low 
