283 
Habitat: Java (Batavia, Surabaya); North of Rio straits!; 
Singapore; Celebes (Macassar). — Malacca, 
In sea and estuaries. 
6. Arius goniaspis Blkr. 
Arius goniaspis Bleeker, Act. Soc. Indo-Neerl. III. 1858, Vischfauna Sumatra, p. 44. 
Ariodes goniaspis Bleeker, Ichth. Arch. Ind, Prodr. I. Siluri, 1858, p. 91. — 
Atl. Ichth. II. 1862, p. 42. 
Arius goniaspis Giinther, Cat. Brit. Mus. V. 1864, p. 166. 
Deora Ny TO 17 Peet. Pas WO! 
Elongate. Height about 5, head 3%/,—3°/,, broader than 
high, its width 1'/,—1'/, in its length, depressed, crown con- 
vex, granulated above. Occipital process triangular, with the 
lateral margins straight, broader than long, subradially granu- 
lated, with its obtuse, emarginated hindborder touching the 
short, rugose basal bone of the dorsal spine. The long median 
fontanel extends nearly to the base of the occipital process. 
Dorsal profile ascending nearly in a straight line from the 
acute, convex snout, to the anterior part of the vertex, the 
posterior part being gibbous. Humeral process rather small, 
sharp, very rugose. Axillary pore conspicuous. Eye 37/,—4, 
superior, situated in the middle of the head, about twice in 
the interorbital space. Maxillary barbels reaching nearly to 
end of pectorals, mandibulary ones farther than base of pectorals, 
mental ones shorter. Dorsal slightly higher than body, about twice 
higher than long, its spine is of moderate strength, 1'/,—17/, 
in head, with the hindborder slightly denticulated, anteriorly 
only near its tip. Adipose fin small, its base about 5 times 
in its distance from the dorsal. Anal acute, emarginate, longer 
than high, about twice longer than adipose fin. Pectorals 
1'/,—1'/, in head, their spine nearly equal to that of the dorsal, 
but more slender, with similar denticulation. Ventrals about 
twice shorter than head. Caudal deeply incised, the superior 
of the acute lobes is the longer. Teeth in the jaws in a villi- 
form band, slightly curved in the upper jaw and about 4 times 
longer than broad; in the lower jaw in a nearly semilunar 
band, slightly longer but more slender. Teeth on the palate 
conical, granular, arranged in four groups: a small ovate patch 
on each side of the vomer, and a flat elongate patch along 
