236 
gray. Length 295 irn. (Brauer.) 
Atlantic and Indian Oceans. 
HLAPTEROSTOMIilS new genus 
Type Elapterostomias pbilippinus new species. 
ifaa » tm —w aura■ t r— - -1 ■ , r m n 
Body elongate, well compressed. Head 1 rge. Two pairs of long fangs in pre. 
maxillary and 1 pair at front of mandible. Barbel long as head, with simple 
rminal bulb. Dorsal rays 14. Anal rays 13. Pectoral less than head. Ventrall 
. 
small. 
D iagnosis . Related to Chirostadias Regan paid Trewuvas in the presence of an 
adipose fin but differing in the presence of its large postorbital luminous 
organ, 
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i c 
i c 
AqlOK, oil or f&fjTT'Tepo *^ f'n; 
Elapteros tomias pbilippinus , new species. 
Depth 6; head 4 1/4 9 > width 2 2/3. Snout 5 in head from snout tip; eye 6, 
1 l/5 in snout, 1 4/5 in interorbital; maxillary extends 3 3/4 eye diameters 
behind eye, slender, length 1 l/lO in head from snout tipi premaxillary teeth 
« 
5 or 6, second or third pair longest; 8 to 10 rather large well spaced teeth on 
each maxillary; 11 teeth on each mandibular ramus, second usually longest; 11 
or 12 teeth on each palatine; barbel long as head, slender, with small, simple, 
terminal bulb; interorbital 3 1/4 in head from snout tip, low, slightly convex. 
Gill rakers 5 } 11, pairs of short close set denticles, equal gill filaments or 
1 2/3 in eye. 
Ovoid luminous organ close above upper maxillary ed'e, entirely behind eye, 
length cut slightly less than eye; small photophore at middle of lower eye edge; 
