1 68 



with its hinder end scarcely dilated, surpassing eye with i ! / 2 

 eye diameter. Praeopercular margin very oblique. Origin of 

 dorsal immediately behind vertical through origin of ventrals, 

 situated before middle of length, its distance from snout much 

 larger than its distance from hindborder of adipose fin. Origin 

 of anal below middle of last '/s f dorsal. Pectorals below 

 middle of height, surpassing origin of ventrals. Ventrals reaching 

 to about seventh anal ray. Scales cycloid. Luminous organs: 

 a somewhat pearshaped antorbital organ, dorsally from nostril, 

 with its long axis parallel to the axis of the body, its point 

 extending to the median crest of the snout; a roundish sub- 

 orbital organ, somewhat behind the middle of the pupil, its dorsal 

 border extends to the level of the iris and is bordered with black, 

 its lower silvery half reaches to maxillary. 3 branchiostegals ; 2 

 operculars above each other, the smaller lower one behind upper 

 jaw. 5 PO, the fourth outside the series, above and somewhat 

 behind the third, the first and second separated by a space 

 much larger than that between the following. The 2 PVO 

 in an oblique line, the posterior near the upper base of the 

 pectoral, the anterior obliquely before and below it, above 

 the interspace between the first and second PO. PLO nearly 

 midway between pectoral and lateral line, at its lower border 

 a large luminous scale. 5 VO, the second and third outside 

 the series, the third higher than the second, n 12 AO, the 

 anterior group, above the anterior 2 / 3 of the anal, contains 6 

 organs, the anterior and posterior of which are outside and 

 above the remaining. The posterior group contains 5 6 organs 

 in a series beginning above the last anal ray. 4 Prc, the 

 hindermost close to the lateral line and distant from the 3 

 anterior ones which are situated at the ventral profile. VLO 

 much nearer to lateral line than to origin of ventral. 3 SAO 

 vertically above the anus, the uppermost close to the lateral 

 line as also Pol, which lies above the last organ of the anterior 

 AO. Length about 95 mm. 



Habitat: Bali Sea (521 M.) ! ; Banda Sea (15000 M. 

 vertical net)!; Arafura Sea (560 M.)!. 



13. Myctophum caeruleum (Klunz.) [Fig. 65, b; p.. 171] 



Scopclus cacruleus Klunzinger, Abh. Zool. bot. Ges. Wien XXI. 1871, p. 592. 

 Scopdus engraulis Giinther, Challenger Rep. XXII, Deep-Sea Fishes, 1887, p. 197. 



