I 5 8 



oblique. Dilated hinder end of the maxilla reaching nearly the 

 praeopercular margin. Opercle rather broad, its membrana- 

 ceous part produced. Origin of dorsal behind origin of ven- 

 trals, nearly in the middle of the length, its end above the 

 first rays of the anal. Adipose fin above last rays of anal. 

 Pectorals narrow, very long, reaching on anal. Scales cycloid, 

 extremely deciduous. Luminous organs: A very small antor- 

 bital on the upper frontborder of the eye. Two operculars 

 on the praeopercular margin, the upper on a level with the 

 ventral border of the eye, the smaller, lower near the angle 

 of the maxillary. Three branchiostegal ones in a curved line. 

 5 between isthmus and ventrals (PO), the fifth pair of which 

 far apart, separated by the entire width of base of ventrals. The 

 posterior PVO at the lower base of the pectorals, the anterior 

 in front of it, obliquely above the second PO, and covered 

 by the opercular flap as well as PLO, which is situated high 

 up on the level of the lateral line. 4 VO, the first, third and 

 fourth in a series between pectorals and anus, the second 

 displaced high up outside the series, obliquely above the first 

 VO. The first group of AO consisting of 5 6 organs above 

 anterior 3 / 4 of anal, the second group beginning above last 

 ray, consisting of 4 5 organs; separated from them the two Prc, 

 the hindermost of which is near the lateral line. VLO much 

 nearer to lateral line than to ventral. The 3 SAO forming a 

 blunt angle, the anterior above the third VO, the third in 

 the lateral line. Pol in the lateral line, above posterior part 

 of anal. 3 4 luminous patches may be present (cT) between 

 adipose fin and caudal. Silvery, scaleless parts blackish brown. 

 Base of caudal and anal and upper rays of pectorals blackish. 

 Length 100 mm. 



Habitat: Macassar straits (11 M.) ! Indie; Pacific (Sand- 

 wich islands); South Atlantic (37 31' South). 



5 Myctophum coccoi (Cocco). 



Scopelus coccoi Cocco, Giorn. Scienz. per la Sicilia, VII. 1829, p. 143. 

 Alysia loricata Lowe, Proc. Zool. Soc. London, 1839, p. 87. 

 Scopelus coccoi Giinther, Cat. Brit. Mus. V. 1864, p. 413 (p. p.)- 

 Scopelus (Rhinoscopelus} coccoi Ltitken, Spolia Atlantica, Scopelini, 1892, p. 243. 

 Myctophum (Myctophuni) coccoi Brauer, Deutsche Tiefsee-Exp. Tiefseefische, 

 1906, p. 199. 



D. 10 II; A. 1921; P. 1415; V. 8; L.I. 3941. 



