562 PROCEEDINGS OF THE ACADEMY OI [Dec, 



each side a series of about 12 rather small photophores. On lower 

 caudal peduncle surface a series of minute photophores. On pre- 

 dorsal region of trunk a pair of minute photophores, close together 

 medianly within each scale pocket. On rest of trunk usually a 

 single minute median photophore, though within median lateral 

 series, apparently 2 sometimes, and some of pockets medianly along 

 caudal peduncle sides even with a cluster of 3. At base of lower 

 caudal lobe medianly 3 small photophores in a series. No evidence 

 of 1. 1. About 6 or more photophores in row medianly a little anterior 

 on inner branchiostegal membrane. 



Dorsal origin inserted about first f in head and trunk length, 

 base well elevated, apparently no small anterior rudimentary rays, 

 first ray very long, slender, filamentous and depressible a little 

 beyond ventral origin, other rays all much shorter and graduated 

 well down. Elongated dorsal ray about 2\ to caudal base?. Oppo- 

 site middle of anal base a thin moderately long adipose fin, its length 

 about If eye-diameters. Caudal well forked or emarginate (dam- 

 aged), and lobes apparently equal. Anal with base produced or 

 elevated, fin inserted near last fourth in space between its origin 

 and head, first ray apparently longest, others all graduated down. 

 Pectoral with its base but slightly inclined, broad, and fin directed 

 obliquely up posteriorly (damaged), and apparently reaching a 

 little beyond dorsal origin. Ventral inserted near first third in 

 space between pectoral origin and caudal base, fin long (damaged), 

 rays apparently graduated anteriorly to middle, or longest, though 

 last filamentous and depressible § to anal origin. Vent close before 

 anal, not opening from elevated anal base, but from abdominal 

 surface. 



Color in alcohol largely faded dull or pale brown, nearly uniform, 

 except blackish of belly or under surface. Photophores each with a 

 little brownish or dusky pigment. Iris pale slaty. 



Length 4| inches (caudal tip damaged). 



Italy (C. L. Bonaparte No. 348). From Dr. T. B. Wilson. I 

 extracted a scopelid about an inch long from this example. 



Head about 6|; head depth about 6|; D. 7; A.?; P. 13; V. 7. 

 Teeth in premaxillary differ a little from those in above example 

 in having an accessory fang close, similar, or very little shorter, 

 beginning at base of second fang on left side. Base of second 

 right premaxillary fang short, and similar to one depressible from 

 base of first premaxillary fang, this latter of course transversely 

 across roof of mouth. Also small similar accessory fang close behind 



