of barbel black, otherwise yellowish grey. Fins white with 

 black spots. Length 183 mm. [After Brauer rf Not seen by us]. 

 Habitat: N. W. coast of Sumatra (1024 M.). 



2. Melanostomias valdiviae Brauer. 



Melanostomias Valdiviae Brauer, Zool. Anz. XXV. 1902, p. 285. Deutsche 



Tiefsee-Exp. Tiefseefische 1906, p. 56. 

 Melanostomias valdivae T. Regan, Trans. Linn. Soc. London XII (3), 1908. p. 218. 



B. II 12; D. I 3 ; A. 18; P. 5; V 6. 



Height 7 3 / IO , head 7 ! / 2 , eye 5 ! / 2 , snout much shorter. Barbel 

 shorter than head, terminating in 3 unequal intumescencies 

 and filaments. Ventrals situated at the end of the second */ 3 

 of the body. 7 intermaxillary teeth, the fourth and fifth the 

 largest. 9 mandibulary teeth, the second the largest. Maxilla 

 anteriorly with 5 teeth, increasing in size posteriorly, equal 

 to intermaxillary teeth; behind them a series of 10 in a young 

 specimen (Regan), or 28 in a large specimen (Brauer), of small 

 close-set teeth, directed backward. Except the lastnamed, all 

 teeth bicuspid and depressible. Tongue without teeth, palatines 

 with 3 teeth. Arrangement of luminous organs essentially the 

 same as in M. melanops, except that the ventral series contains 

 27 'organs between pectorals and ventrals, 1 1 between ventrals 

 and anal, 13 between anal and caudal, and that the lateral 

 series from gillopening to vertical through ventrals contains 

 24, and from here to vertical through anal 13. Colour as in M. 

 melanops, but the barbel entirely bluish black. Length 165 mm. 

 [Not seen by us]. 



Habitat: West of Sumatra (614 M.). - - Indie near Far- 

 quhar atoll (914 1371 M.). 



5. Astronesthes Richardson. 



(RICHARDSON, Zoology Voyage Sulphur, Ichthyol. 18441845, p. 97). 



Elongate, strongly compressed, scaleless. Head compressed, 

 snout short, lower jaw prominent, gape of mouth wide. Chin 

 with a long, fleshy barbel. Pectorals and ventrals long and 

 narrow, ventrals near middle of body, opposite to dorsal or 

 shortly before it. Adipose fin opposite to anal. A ventral 

 adipose fin before vent. Caudal forked. Teeth in the inter- 

 maxilla and mandible widely set, unequal, some of them long, 



