Description 



D. 14; A. 14 (15); P. 14 (15); AO 6-7 (5) + 4-5 (3); Pre 2+ 1; PO 5; VO 5 (4-6); gill rakers 6 

 (7) + 1 -H 14 (15), total 21 (22-23); lateral line scales 37-38; vertebrae 37-38 (three specimens). 



Eye large, 2.9 to 3.3 in head. Opercular margin with a very distinct triangular indentation 

 at level of pectoral origin. Pterotic spine very strong, curved downward and forward in larger 

 specimens, pxisterolaterally in smaller specimens. 



Supracaudal luminous gland about 0.66 of infracaudal; posterior margin of supracaudal 

 slightly to distinctly notched. Distance between end of anal base and anterior end of in- 

 fracaudal gland less than 0.25 the length of that gland. 



Size: To 63.5 mm. 



Least depth of capture: To 150 m at night (21-mm specimen) and between 350 and 2390 m 

 in daylight (64-mm specimen). 



Distribution: In southern parts of all three oceans between about 20° and 50° S. 



Lampadena chavesi 



Collett, 1905 



.C^^\:- 



Fig. 144 — Lampadena chavesi, 54.5 mm. From Nafpaktitis and Paxton 

 (1968, p. 18, fig.7). 



Description 



D. 14; A. 13-14 (12); P. 16-17; AO 7 (8) + 2; Pre 2 -f- 1; VO 5 (6); gill rakers 6-7 -t- 1 -F- 13, 

 total 20-21; lateral line scales 38 (39); vertebrae 37-38 (two specimens). 



Eye large, 2.6 to 3.3 in head. Opercular margin with slight indentation opposite middle of 

 pectoral base. Pterotic spine strong, directed posteriorly. 



Caudal glands largest and most distinctive of the genus Lampadena ; supracaudal gland 

 bifurcate posteriorly; infracaudal flat in cross section, limited to ventral surface, and not 

 extending down much on sides of peduncle, tapering posteriorly rather than anteriorly (in 

 contrast to all other species of this genus). Distance between end of anal base and anterior 

 margin of infracaudal gland very short, about twice a photophore diameter. 



Size: To 60 mm. 



Least depth of capture: To 50 m at night (22 to 24-mm specimens). 



Distribution: Apparently antitropical; it occurs in North Atlantic and in southern Indian 

 and Pacific Oceans between about 30° and 40° S. Craddock and Mead (1970) reported eight 

 specimens from west of Valparaiso, Chile, between about 88° and 93° W. 



