115 
of barbel black, otherwise yellowish grey. Fins white with 
black spots. Length 183 mm. [After Brauer. 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. 
Beni =t 2, Drs Ay 883 Po5 = V6: 
Height 7*/,,, head 7'/,, eye 5'/,, snout much shorter. Barbel 
shorter than head, terminating in 3 unequal intumescencies 
and filaments. Ventrals situated at the end of the second '/, 
of the body. 7 intermaxillary teeth, the fourth and fifth the 
largest. g 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 JZ. melanops, except that the ventral series contains 
27 organs between pectorals and ventrals, 11 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 J/. 
melanops, but the barbel entirely bluish black. Length 165 mm. 
[Not seen by us]. 
Habitat: West of Sumatra (614 M.). — Indic near Far- 
quhar atoll (914—1371 M.). 
5. Astronesthes Richardson. 
(RicHarpson, Zoology Voyage Sulphur, Ichthyol. 1844—1845, 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, 
