i37 
1 
a. POLYIPHTTS. Spines on head short or obtuse, little developed; photophores 
large and conspicuous. 
1 
b. Black triangle of back not extending below middle of eye. 
1 
c.. Anal photophores of ventral series all at same level or nearly level 
with highest of lateral series. 
1 
d* Posttemporal spine trifid and all 5 spines conspicuous, pointing down 
or back. 
1 
e. Lower gill rakers 12 
2 
e Lower -ill rakers 18 
tridentifer• 
stereope. 
■ — » ■■ — -C m* ■ i 
2 
d. Posttemporal spine trifid though only main spine conspicuous; lower 
gill rakers 13 
spinosus. 
2 
Anal photophores in ventral series with first 3 elevated level with 
height of lateral series, then 3 lower and finally rest high as first 
b. Black triangle of back extends down nearly level with lower eye edge; 
lower gill rakers 14 to 16 
Spines on head large, well developed; photo 
phores rather inconspicuous; lower gill rakers 13 fraseri. 
Subgenus POLYIPHUS GSmther 
Spines on head short of obtuse, little developed. Photophores large 
and conspicuous. 
Folyipnns tridentifer Kc Culloch 
Biorlv-^svll^ '^c&rfL r ppirSB^ .4y»tehgt- 
