167 
opposite to origin of ventrals. Anal equal to dorsal or slightly 
shorter, its origin somewhat behind end of dorsal. The small 
adipose fin opposed to hindermost rays of anal. Pectorals pointed, 
shorter than postorbital part of head, reaching ventrals, which are 
longer than the pectorals. Caudal deeply incised. Scales cycloid. 
Luminous organ: Antorbital small '). Two operculars, a larger 
dorsal one below the level of inferior margin of eye, a smaller 
lower one behind upper jaw. 3 branchiostegal ones. 5 PO, 
the 3 anterior and the fifth equidistant, the fourth above the 
third. 2 PVO, the posterior one near lower base of pectoral, the 
anterior one obliquely before and below it. PLO nearer to lateral 
line than to base of pectorals. 5 VO, the first, fourth and 
fifth in a ventral series, the second and third in the space 
between the first and fourth, forming with the first an obli- 
quely ascending line, the second being closer to the first than 
to the third. AO in 2 groups, the anterior group with 5—7, the 
posterior with 4—6 organs. The first and last anterior one may lay 
higher up outside the series. The second group begins behind 
the anal. 4 Pre in a curved line, the hindermost high up near 
lateral line. VLO nearer to lateral line than to origin of ven- 
trals. SAO in a straight or slightly curved line, the lower 
one above anus, the upper one in the vertical through end of 
dorsal, quite near lateral line, as also Pol. Violet brown, oper- 
cles silvery. Length 80 mm. [Bleeker’s typical specimens seen 
by us]. 
Nomen indig.: Bulan bulan (Menado). 
Habitat: Celebes (Menado)!. — Tropical Indic. Pacific: 
Hawai (JZ. urolampus). Atlantic between 39° N. and 37° S. 
12. Myctophum suborbitale (M. Web.). 
Diaphus suborbitalis Max Weber, Siboga-Exp. Fische, 1913, p. 90. 
Meiosis ba te. Via Os Ll. circae 38. 
Height more than 4'/, to nearly 5, head 3'/,, eye 3'/,—57/,. 
Snout 2'/, in eye, very short and steeply descending, with a 
strong median keel running in the interorbital space which is 
'/, broader than eye diameter. Mouth oblique. Upper jaw 
1) Diaphus nocturnus, which we have cited as a synonym, has according to 
Gilbert a small suborbital organ below the anterior portion of the orbit. 
