Lampanyctus parvicauda 



Parr, 1931 



Fig. 175 — Lampanyctus parvicauda, 62.1 mm. From Wisner (1963a, p. 17, fig. 3). 



Description 



D. 14 (13-15); A. 18 (17-20); P. 13 (12-15); AO 5 (4-6) + 9 (7-11), total 13-14 (12-16); gill 

 rakers 3 (4) -I- 1 -h 9 (8-10), total 13 (12-14); vertebrae 36-37 (35-38). 



PLO and VLO slightly below, SAO3 and upper Pol touching, lateral line. VO^ elevated and 

 displaced forward to just behind vertical from VO,, but never to over or before it. AOa series 

 strongly curved, the photophores about evenly spaced. Last 3 Pre evenly spaced in straight, 

 steeply oblique line. Usually 3 AOpover anal base. Infracaudal gland short, with about 5 (4-7) 

 luminous scales. Pectoral fin short, barely reaching to vent. 



Size: To about 110 mm. 



Least depth of capture: At surface at night. 



Distribution: May be confined to warmer waters of eastern Pacific Ocean between about 

 20° N and 15° S (Fig. 176). It has been taken in southern part of Gulf of California. It is not 



Fig. 176 — Capture localities for Lampanyctus omostigma (X), L. parvicauda 

 (solid circles! andL. hubbsi (solid triangles). 



188 



