337 
1. Nasal barbel longer than head; maxillary 
barbel extending to caudal. Height 4—4!/,, 
HeadusomewhausmOnGarenee cm lciciialsiveneh ols M. wolf p. 340. 
2. Nasal barbel reaching eye. 
a. Maxillary barbel extending about to anal. 
Height about 5, head 3—3'/, in length . WZ. nemurus p. 341. 
f@. Maxillary barbel extending to base of ven- 
trals. Height more than 6, head 33/,—4!/, 
fer Vn henrGtberep gener tes fina: =) wi, oe nant oy & M. planiceps p. 342. 
é. Upper suxface of head) smooth’. .... «5... . M. wycki p. 343. 
iii Adipose, tineshorter, thanvanallys's.. 00s ane si. M. gulio p. 344. 
1. Macrones nigriceps (C. V.) [Fig. 145, p. 336]. 
Bagrus nigriceps Cuvier & Valenciennes, Hist. Nat. Poissons, XIV. 1839, p. 412. 
Bagrus macronemus Bleeker, Nat. & Geneesk. Arch. Ned. Ind. III (2). 1846, p. 150. 
Bagrus singaringan Bleeker, Nat. & Geneesk. Arch. Ned. Ind. III (2). 1846, p. 150. 
Bagrus heterurus Bleeker, Nat. & Geneesk. Arch. Ned. Ind, III (2). 1846, p. 151. 
Hypselobagrus macronema Bleeker, Atl. Ichth. II. 1862, p. 58. 
Macrones nigriceps Giinther, Cat. Brit. Mus. V. 1864, p. 77. 
Macrones nigriceps Vaillant, Nouv. Arch. Mus. Hist. Nat. (3) V. 1893, p. 72. 
Macrones nigriceps Volz, Revue Suisse Zool. XI. 1904, p. 467. 
Hypselobagrus nigriceps Fowler, Proc. Acad, Nat. Sc. Philad. (2) LVII. 1905, p. 470. 
Hypselobagrus macronemus Jordan & Seale, Proc. U. S. Nat. Mus. XXXIII. 1908, 
p- 526. 
Paes; Wy. 7 Ae 11—12 3) PL G17; V6: 
Oblong, profile behind dorsal convex, before dorsal strongly 
sloping down in a straight line to the rounded snout, which 
is slightly prominent. Head conical, mouthopening slightly 
curved. Height about equal to head, 41/,—4*/,. Head as broad 
as high, its greatest width about 1'/, in its length, vertex 
and occipital process granulated, the latter extending to the 
granulated interspinal bone of dorsal. A median groove ending 
at base of occipital process. Eye 3—4'/,. Nasal barbels exten- 
ding to end of head, maxillary barbels on caudal or to its 
end, mandibulary barbels reaching ventrals, mental ones on 
pectoral. Anterior longest rays of dorsal conspicuously longer 
than head. The osseous part of dorsal spine, slightly serrated 
at the upper part of its hindborder, about equal to head without 
snout. Adipose fin very long, contiguous with the dorsal and 
as high as lowest part of tail. Base of anal more than 4 times 
in base of adipose fin. Ventrals as long as pectorals, rather 
INDO-AUSTRALIAN FISHES II. 22 
