1905.] NATURAL SCIENCES OF PHILADELPHIA. 501 



64. Ambassis gymnooephalus (Lacepfede). 



Head 2|; depth 2f ; D. i, VII, I,, 9; A. Ill, 9; scales 27 in a lateral 

 series to base of caudal: 14 tubes in fii'st part of lateral line, and 14 in 

 lower or caudal portion; 4 scales between origin of spinous dorsal and 

 lateral line obliquely back; 8 scales obliquely forward from origin of 

 spinous anal to lateral line ; about 13 scales before spinous dorsal ; snout 

 4^ in head, from tip of upper jaw; eye 3; maxillary 2|-; interorbital 

 space 3|-. Rakers small, thin, longer than filaments and numerous. 

 Color faded plain or uniform brownish, fins whitish. Length 2h inches. 

 Two examples. 



SCI^NID^.«=' 



65. Sciaena novae-hoUandise Steindachner. 



Head 3^ ; depth 3| ; D. X, 26, i ; A. II, 6, i ; scales 45 in lateral line'to 

 base of caudal; snout 3f in head; eye 5^; end of maxillary to tip of 

 snout 2; interorbital space 3f ; pectoral 1^; ventral l^-; least depth 

 of caudal peduncle 4. One example, 4| inches, agreeing with Bleeker's 

 figure.^^ 



POLYNEMIDiB. 

 TRICHIDIONTIN.^."" 

 Rayed dorsal and anal of equal size. Preopercle serrated. 



66. Trichidion indicus (Shaw). 



Head 3i; depth 4f; D. VIII-I, 13; A. Ill, 12; P. ii, 11; pectoral 

 filaments 5; V. I, 5; scales 70 in lateral line to base of caudal; about 

 36? scales (squamation damaged) before spinous dorsal; 7 scales be- 

 tw^een origin of spinous dorsal and lateral line; 8 scales between 

 origin of soft dorsal and lateral line; 10 scales between origin of 

 anal and lateral line; width of head 1| in its length; depth of head 

 If; snout 4f; eye 8; m^axillary 22-V; mandible 2^; width of mouth 2f ; 

 interorbital space 4; first dorsal spine 1^; first dorsal ray If; first anal 

 ray 2; third anal spine 3y; upper caudal lobe a little less than head; 

 least depth of caudal peduncle 3-|-; pectoral 1^; ventral about 2^. 

 Uppermost pectoral filament reaching origin of anal. I^ength 21^ 

 inches. One example from the mouth of the Baram. 



^^Scicena macroptera Fowler,. Journ. Acad. Nat. Set. Phila.. XII (2), 1904, p. 

 530, is an Umhriiia. 



^Kitlas Ichth., IX, 1877, PI. (4) 3S7, fig. 2. 



"* Tills is opposed to the Poltnemix.'e or those species witli the anal basis about 

 twice the length of the second dorsal and an entire preopercle. Typified by Poly- 

 nemus Linnseus. Trichidion Klein, in Walbaum, Pet. Arted. Pise, III, 1792, p. 

 585, is the earliest reference for that genus, thus having priority over Polydactylus 

 Lacep6de. 



