the dorsal slightly below the level of the ventral orbital margin 

 the lower behind the angle of the maxillary ; 3 branchiostegal 

 ones. 5 equidistant PO in a series between isthmus and 

 ventrals. The posterior PVO at the lower base of the pectoral, 

 the anterior one before and below it, opposite to the second 

 PO. PLO obliquely above the pectoral but below the lateral 

 line. 4 VO in a continuous series between ventrals and anus. 

 Anterior AO 7 9, generally 8, above the anterior 2 / 3 of the 

 anal. Posterior group (AOp) 8 10, mostly 8, the anterior 3 oi'4of 

 which are situated above the last ! / 3 of the anal. 2 Prc, the 

 last of which lies higher but conspicuously below the lateral 

 line. 3 SAO in a steeply ascending oblique or slightly con- 

 cave line, the most ventral of them above or somewhat before 

 the last VO ; the uppermost near the lateral line in the ver- 

 tical through the origin of the anal. Pol somewhat below the 

 lateral line, above the last anterior AO. 2 3 supracaudal 

 luminous plates in the male, 4 5 infracaudal ones in the 

 female. Steel blue. Length 100 mm. 



Habitat: Banda Sea (surface)!. Near northcoast of New 

 Guinea. - Admirality islands. Mediterranean. Atlantic from 

 about 60 N. to Canarian islands. 



7. Myctophum affine (Liitken). 



Scopelus affinis Liitken, Spolia Atlantica, Scopelini, 1892, p. 252. 

 Myctophum affine et opalinum^ Goode & Bean, Oceanic Ichthyol. 1895, p. 72. 

 MyctopJmm nitichihim Carman, Exp. Albatross, XXVI. Fishes, 1899, p. 266. 

 Rhinoscopelus oceanicus Jordan & Evermann, Bull. U. S. Fish. Comm. XXII. 



(1902) 1904, p. 168. 

 Myctophum margaritatum Gilbert, Bull. U. S. Fish. Comm. XXIII. (1903) 



1905, P- 596. 



Myctophum (Myctophum) affine Brauer, Deutsche Tiefsee-Exp. Tiefseefische, 



1906, p. 190. 



Myctophum affine Gilbert, Mem. Mus. Comp. Zool. Harvard Coll. XXVI. 1908, 



p. 217. 



Myctophum affine Zugmayer, Exp. Monaco, XXXV. Poissons. 1911, p. 27. 

 Myctophum affine Max Weber, Siboga-Exp. Fische, 1913, p. 87. 



D. 1213; A - 20; P- 15; V. 9; L.I. about 41. 



Height 4 4 1 / 2 , head about 4, eye 2 2 / 3 3, more than twice 

 length of the bluntly rounded, declivous snout, which has a 

 median keel. Mouth oblique. End of upper jaw dilated, 

 reaching nearly to angle of praeoperculum. Origin of dorsal 

 much nearer to tip of snout than to root of caudal, above 

 INDO-AUSTRALIAN FISHES II. n 



