PHILIPPINE MACROUROID FISHES—GILBERT AND HUBBS. 5953 
In its distribution this species closely parallels V. nigrodorsalis; 
the two species were often dredged together. 
Among the diagnostic characters of this species the coloration, the 
parallel arrangement of the spinules on the scales, and the presence 
of two lens-like organs may be mentioned. The lens-like structures 
closely resemble those of Hymenocephalus: the smaller one lies be- 
tween the ventral fins, the larger one is situated in a naked area 
immediately before the anus. 
(nigromarginatus, having a black margin along the anal fin an- 
terigrly.) 
LucriGApuS, new subgenus. 
61. VENTRIFOSSA LUCIFER (Smith and Radcliffe). 
Macrourus lucifer SMirH and RADCLIFFE, Proc. U. 8S. Nat. Mus., vol. 43, 
1912 Spits. pl. 24, figs. 
List of stations. 
= Bottom | Number 
seats Locality. eee | tempera-| of speci- 
pete : ! Soul tunes mens. 
core 
S268. 32) Ofsouthwestermblzons te: ase aes coe aioe See oo see cin eer | LOM epee Saye 1 
WOLOD ames Ofinonrtherny Mindanao scec ac oece ters viciewig ceils === eee ce eee = | 175 54.3 14 
SDI Metter fae ae CO Rae eRe are Ha Be OS SEES ORO RT re SIN ee ERE ane 169 54.3 1 
Dol has -ealiseees CLO ene epee Ge ae me eae eae Stet ed Riles a eae is eoteloem IE 182 54.3 8 
1 One of these specimens (Cat. No. 72929, U. S. N. M.) is the type of the species. 
This species is one of the most distinct in the entire subfamily. 
The conical pearly structure directed downward and forward, and 
ensheathed in the ventral abdominal wall, is highly diagnostic. 
The possibility that this organ is phosphorescent led to the naming 
of this species lucifer. - 
Genus LIONURUS Giinther. 
Lionurus GUNTHER, Challenger Reports, vol. 22, Deep-Sea Fishes, 1887, pp. 
124, 141.—Girsert and Husss, Proc. U. S. Nat. Mus., vol. 51, 1916, p. 192. 
The genus Zionurus is here used as we have already modified and 
defined it,1 exclusive of those species which are now referred to 
Ventrifossa, a genus which we have just described. As all of the 
Philippine species have spinous scales, they are all referred to the 
subgenus Vezumia. 
1Proc. U. S. Nat. Mus., vol. 51, 1916, pp. 141, 192. 
