173 



behind end of dorsal, before the beginning of last ! / 3 of length, 

 ending below adipose fin. Pectorals somewhat below middle 

 of height, reaching on ventrals. Scales cycloid. Luminous organs 

 divided by a black septum. A minute antorbital organ dorsally 

 at the frontborder of the orbit; two operculars, the larger 

 dorsal one somewhat below level of ventral margin of eye, the 

 smaller lower one behind upper jaw. 3 branchiostegals. 5 PO, the 

 3 anterior ventrally in a series, the fourth quite outside the 

 series above the third, the fifth lower down at the base of 

 the ventral. The 2 PVO in a straight line above each other, 

 the dorsal one about before the middle of the base of the 

 pectoral, the ventral one nearly on the same level as the superior 

 opercular and the fourth PO. PLO above and slightly before 

 them, near lateral line. 5 VO between ventrals and anal, the 

 second of them somewhat higher than the others, outside the 

 series. 7 AO in two groups, the anterior group, above the 

 anal, contains 5, the posterior group, far distant from the anal, 

 contains 2 organs, the last of which is situated above the 

 infracaudal luminous patch. 4 Prc, 3 anterior equidistant in 

 a series behind that luminous patch, the fourth far distant in 

 the end of the lateral line. VLO midway between ventral 

 and lateral line. 3 SAO in an oblique line, with a shallow 

 concavity looking forward, the lower one above the anus, quite 

 near to it, above and somewhat behind it, the middle one, the 

 uppermost more distant, near the lateral line. Pol near the 

 lateral line between the anterior and posterior AO. A large 

 supracaudal luminous patch above the infracaudal patch. Length 

 153 mm. [After Brauer, not seen by us]. 



Habitat: West Coast of Sumatra (614 M.). -- Indie be- 

 tween Seychelles and Chagos archipelago. Pacific : Galapagos 

 islands. 



We are not sure that Brauer's indie specimens are identical 

 with Garman's M. luminosum from Galapagos islands, as Garman 

 counts D. 16; L.I. 35 and does not mention the posterior 

 AO and the 3 anterior Prc. 



5. Neoscopelus Johnson. 



(JOHNSON, Proc. Zool. Soc. London, 1863, p. 44). 



Subfusiform, rather robust. Scales cycloid, deciduous, their 

 surface finely denticulated. Lateral line present. Head conical. 



