230 
Genus R0R0STCMIAS Regan 
Borostomias REGAN, Trans. Linn. Soc. London, series 2, vol.12, Zool., 1908, p. 
217. Type Borostomiajs b raue ri REGAN, designated by Jordan, Genera of Fishes, 
pt.4, 1920, p.529. 
Mouth cleft straight. Premaxillaries and lower jaw with strong fangs. Hax¬ 
illary teeth few (7 to 10), set well apart, rather strong, erect, incurved, some 
or all straight and slightly barbed at end, like fangs of premaxillaries and 
lower jaw. Generally pair of teeth on vomer. Series of teeth on each palatine. 
Short strong teeth on gill arches, none on ceratohyal. Postocular Ivminous 
organ single* Dorsal rays 11 to 16, begins above or just behind ventrals, not 
extending above anal. Anal rays 10 to 18. 
’Atlantic and Indian Oceans, Gulf of Panama. 
ANALYSIS OF SPECIES 
1 
a* Dorsal 11; Anal 10; vent:‘median between ventrals and anal 
abyssorum. 
2 
a. Dorsal 11; Anal 14; Tent near anal f'in, 
“ 1 
b. Eve 4 in he ad macrophthalmus. 
£-» >ii itmi ■!> .. m .■ ■ ^ nur .i .n 
“2 
b. Eye 5 2,/z in head antareticus. 
, Z 
a. Dorsal 13 or 14; Anal 14 to 16. 
~ 1 
c. Barbel little shorter than head; postocular luminous organ long as eye 
schmidti. 
O 
Ci 
c. Barbel 1 1/3 to 1 l/2 times head, slender, slightly thickened white term¬ 
inal part l/20 of head; postocular luminous organ shorter than eye, 
which 8 in head brau eri. 
