380 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



Depth 3% to 3K; head S% to 3K, width 1%. Snout 3K to Z% in 

 head; eye 4 to 4%, IK in snout, 1^ to 1)^ in interorbital ; maxillary 

 reaches % to ji in eye, length 2)^ to 2?^ in head; teeth villiform, in 

 bands in jaws, only outer 4 or 5 anterior upper shghtly enlarged and 

 Httle exposed as seen from below with closed jaws in larger example, 

 otherwise all teeth uniformly small; interorbital 3K to d% in head, 

 convex. Gill rakers 2 + 7, very short feeble rudiments; gill filaments 

 2% in eye. 



Scales along above lateral line 48 to 50 to caudal base; tubular 

 scales 43 or 44 to caudal base and 7 to 12 more on latter, tubes 

 arborescent; 5 scales above, 6 below, 16 to 18 predorsal, 9 obhquely 

 across cheek to arch of preopercle ridge. Row of 5 pores across front 

 of shout and 5 at lower edge of mandible. Scales with 8 basal 

 radiating striae; 35 to 46 apical denticles, very small, with 6 to 15 

 transverse series of basal elements; circuli very fine. 



D. X, I, 25, 1 or X, I, 26, i, third spine 1% in head, fourth ray 2% to 

 3}^; A. Ill, 7, I, second spine 3K to 3%, third ray 2%; caudal Iji to 1%, 

 rather obtusely cuneate; least depth of caudal peduncle 3 to 3^8; pec- 

 toral 1%; ventral 2. 



Body and upper surface pale brown, under surfaces whitish and 

 whole body with brilhant silvery-white sheen. Iris silvery or very 

 pale yellowish white. Opercle with neutral dusky tint. Spinous 

 dorsal blackish brown, paler basally. All other fins pale, verticals 

 and pectorals grayish terminally. 



India, Ceylon, Singapore. The specimens described above I 

 originally identified with the imperfect description by Cantor, sub- 

 sequently elaborated by Day. Cantor describes the spinous dorsal 

 as "membrane of dorsal spines transparent with black margin; 

 between the anterior six spines dotted throughout, and rather 

 largely with black and brown; between the four posterior spines the 

 central part of the membrane without dots." My specimens show 

 the spinous dorsal blackish brown, largely made up of minute 

 crowded dark dots and affording strong contrast to the fin with the 

 rest of the back. Cantor gives eye 3K in head and the anal spine 

 rather strong and % length of first ray and Day says it equals the 

 length of the postorbital part of the head. Day gives the scales at 

 50 along above lateral line, 48 in lateral line and 45 along below it. 

 From this it would seem Johnius cantori more closely approaches 

 Johnius maculatus. 



A. N. S. P. Nos. 53478 and 53479. Clyde Terrace Market, Singapore. April 2, 

 1931. Department Fisheries, Singapore. W. Birtwistle. Length, 153 to 

 168 mm. 



JOHNIUS MACULATUS Schneider 



Johnius maculatus Schneider, Syst. Ichth. Bloch, p. 75, 1801 (type locality: 

 Tranquebar). — Cantor, Journ. Asiat. Soc. Bengal, vol. 18, pt. 2, p. 1050, 

 1849 (Pinang).— Blyth, Journ. Asiat. Soc. Bengal, vol. 29, p. 141, 1860 



