FISHES OF BORNEO. 281 



Otolithus orientalis Seale, sp. iiov. Plate IV. 



Head 3.20; depth 4.1; dorsal XI, 28; anal 2.7; scales 51 in lateral 

 line, 7 between origin of anal and lateral line, 6 between origin of dorsal 

 and lateral line; eye 5.45 in head; snout 4.15; maxillary 2.45 ending 

 on a line with posterior margin of pupil; interorbital equal to snout; 

 lower jaw slightly projecting, teeth of up2Der jaw small, sharp, in two 

 or more rows, those of lower jaw similar but in a single row on each side, 

 two very large curved canines in each jaw anteriorly. No teeth on 

 vomer, palatine, or tongue. Gill rakers short, not very sharp, about 12 

 on lower arch, the longest scarcely equal to pupil. 



Body oblong, slightly compressed, the dorsals not completely divided; 

 longest dorsal spine 2 in head; length of caudal peduncle (measured to 

 angle of anal) about 1.35 in head, being slightly less than depth of 

 fish; its depth 3 in its length. Origin of anal very much nearer to end 

 of caudal vertebra than to axil of pectoral, being under the middle of 

 soft dorsal; second anal spine very short, less than one- third of first 

 ray. Origin of ventrals nearer tip of snout than to anal pore ; length of 

 ventrals 1.75 in head; pectorals 1.50 in head; caudal 1.75. 



Color uniform silvery with a slight yello-wish wash above and with 

 indistinct dusky lines following the rows of scales which run obliquely, the 

 lines, extending to below the lateral line ; dorsals and caudal tipped with 

 grayish, a grayish spot in axil of pectoral. 



Characterized by the posterior position of anal and ventral, the number 

 of scales, and the teeth. 



Type, Fo. 2744 in the collection of the Bureau of Science, from 

 Sandakan, Borneo. Lengih, 235 millimeters. 



Family SILLAGINID^. Kisugos.. 

 Sillago sihama (Forskai). 



Head 3.45; depth 5; eye 4 in head. 



Color dull yellowish; a silvery stripe along side, which scarcely shows. 

 Tip of dorsal dusky. Nos. 2492, 2755, and 2769 ; length, 120 to 220 

 millimeters. 



A common food-fish of Borneo ; also found in the Philippines. 



Family LABEID^. Urasse-fishes. 

 Chcerodon oligacanthus (Bleeker). 



Color greenish, a black spot under sixth dorsal spine; just behind and 

 above this is a large whitish area, scarcely showing in some specimens; 

 some indistinct bluish longitudinal streaks on sides, most distinct 

 anteriorly ; the young specimens show, in addition, a black spot below and 

 slightly posterior to axil of soft dorsal; the young, also may have an 

 additional blackish blotch midway between these black spots (see No. 

 2455). The ventrals are quite long, reaching to the soft rays of anal. 



