192 
B. 9; D. 70—74; A. 60—63; P.I. 7—9. V. 6. 
Elongate. Height 7—8, head to gillopening 5'/, to more than 
6, head to occipital process 4—5. Greatest breadth above 
opercles about equal to head. Occipital process triangular. 
Its height about twice in its base. Occipital fontanel con- 
spicuously shorter than the frontal one; Jastnamed extends to the 
frontborder of the eye. Eyes 10—11. Eye distance conspicu- 
ously more than mouthopening, equalling postorbital part of 
head. Nasal barbels extend to occipital process. Maxillary 
barbels reaching pectorals or surpassing them. Mandibulary and 
mental barbels considerably shorter. Distance between origin 
of dorsal and occipital process 2'/, times in the distance from 
lastnamed to snout. Caudal rounded, not united with anal 
and dorsal. Ventrals rounded, extending on anal, ?/, of pec- 
torals. Pectorals rounded, equalling head without snout or a 
little longer, their spine weak, very short, about '/,—?/, of 
pectorals, much shorter than postorbital part of head (to gill- 
opening), their frontborder a little rough. Teeth in the maxil- 
laries in two contiguous quadrangular patches, about twice as 
broad as long, mandibulary teeth in two contiguous quadran- 
cular patches, with the posterior corner laterally produced. 
Vomerine teeth in a crescentic band, its hind border sometimes 
more or less prominent in the middle. About 16 gillrakers, 
shorter than branchial filaments. Dark, underside of head and 
belly lighter. Body and tail with light spots, dorsally arranged 
in transverse rows. Median fins with a lighter border. Length 
more than 200 mm. 
Habitat: Java (Batavia (Brit. mus.) Buitenzorg!, Tjikoppo, 
Pondok gedeh, Kadu); Sumatra (lake Toba!, Indragiri, Lahat) ; 
Singkep!; Borneo (rivers Kapuas, Sambas, Serawak, Riko) !. — 
Malacca, Ceylon. 
5. Clarias leiacanthus Blkr. 
Clarias leiacanthus Bleeker, Nat. Tijdschr. Ned.-Ind. II. 1851, p. 430. — Ichth. 
Arch. Ind. Prodr. I. Siluri, 1858, p. 347. — Atl. Ichth. II. 1862, p. 104. 
Clarias liacanthus Giinther, Cat. Brit. Mus. v. 1864, p. 20. 
Clarias liacanthus Vinciguerra, Ann. Mus. Civ. Genova XVI. 1880, p. 166. 
Clarias liacanthus Steindachner, Abh. Senckenb. Ges. XXV. IgQOI, p. 443. 
Chlarias leiacanthus Fowler, Proc. Acad. Nat. Sci. Philad. (2) LVII. 1905, p. 461. 
Clarias liacanthus Popta, Notes Leyden Mus. XXVII. 1906, p. 18. 
B..9; D. 76=78; A. 60—625.P. 1. 8— os Veo: 
Elongate. Height 6—6%*/,, head (to gillopening) 5'/,—6, to 
