205 
separated. Gillrakers 12 (those of S. dorneensis unknown), 
closely set, a little shorter than branchial filaments. Branchioste- 
gals g—11. Gillmembranes free from each other and from 
isthmus. 
Fig. 80. Sidurodes eugeneiatus (Vaill.). 
Sy NoOpsis Of tke speci és. 
Pen FOO. Cote eS na ee wld eh) eos" elise GS st S. hypophthaimus p. 205. 
II. Anal 53—509. 
A, Anal connected with caudal, mandibulary barbels 
Ee) CHUL Psu tie Oto. tan le befecchp sts. aahalTaié S. borneensis p. 206. 
&, Anal free from caudal, mandibulary barbels sur- 
prs aiees ainGbill A. 6 ole seneeoecnan tind ONGC. Ha S. eugenciatus p. 207. 
1. Silurodes hypophthalmus (Blkr.). 
Silurus hypophthalmus Bleeker, Verh. Bat. Gen. XXI. I. 1847, p. 15. 
Silurus macronema Bleeker, Nat. ‘Tijdschr. Ned. Indié II. 1851, p. 203. 
Silurodes hypophthalmus Bleeker, Ichth. Arch. Ind. Prodr. I Siluri, 1858, 
p- 272. — Atl Ichth. II. 1862, p. 83. 
Silurodes macronema Bleeker, Ichth. Arch. Ind. Prodr. I. Siluri, 1858, p. 273. — 
Atl. Ichth. II. 1862, p. 83. 
Callichrous hypophthalmus Giinther, Cat. Brit. Mus. V. 1864, p. 48. 
Callichrous macronema Giinther, Cat. Brit. Mus. V. 1864, p. 49. 
B. 11; D. 3—4; A. 76—82; P. 1. 12—14; V. 7—8. 
Height 4'/, to about 5, head 5'/,—6, eye 4—5, visible from 
below, situated behind the corner of the mouth, about 3'/, 
times in the convexity of the interorbital space. Lower jaw 
more or less prominent. Upper profile with elevated neck, 
concave on the head. Maxillary barbels extending to about 
the middle of the anal, by exception even farther, mandi- 
bulary barbels shorter than the head. Height of very short 
dorsal equals about the length of head without snout. Anal 
