122 



Sintang!, Sampit, Banjermassiii, Brunai, Sandakan); Madura; 

 Celebes (Makassar!, Lagusi) ; Ambon; New Guinea (Miniika 

 river). — Thursday Island, North Australia, Philippines, For- 

 mosa, Tonkin, Cochin-China, Siam, Burma, British India and 

 Ceylon. 



In ^sea and estuaries. 



Note. GUNTHER separated (loc. supra cit.) some specimens 

 from Ambon and Australia from this species under the name 

 of B. caudiniacvlata, on account of their larger eye, longer 

 head and somewhat longer pectoral fins. Among the numerous 

 specimens from the Indo-australian Archipelago, examined by 

 us, we find only one in which the eye goes less than 3 times 

 in the postorbital part of the head, what would be in accor- 

 dance with Gunther's B. caudiuiaculata. But in this specimen 

 the head and the pectoral fins are not longer than in the 

 other ones. The length of the pectoral fin seems to be rather 

 variable, being sometimes shorter, sometimes even longer than 

 the postorbital part of the head, without being accompanied 

 by other constant differences. We see therefore no reason to 

 follow GuNTHER and have included B. caiidimacidata Gunther 

 in the synonymy of T. strongylurus. 



2. Tylosurus macrolepis (Blkr.). 



}Beloiie Urvillii Ciivier ^; Valenciennes, Hist. nat. Poissons XVIII. 1846, p. 444. 

 Belonc macrolepis Bleelver, Nat. Tijdschr. Ned. Indie XII. 1856, p. 225; ibid. 



XIII. 1857, p. 374- 

 Masiacembebis macrolepis Bleeker, Ned. Tijdschr. Dierk. III. 1866, p. 221; — 



Atl. ichth. VI. 1866— 1872, p. 45. 

 Bclone macrolepis Gunther, Cat. Brit. Miis. VI. 1866, p. 246. 

 Belotie macrolepis A. B. Meyer, Anal. Soc. Esp. Hist. Nat. XIV. 1885, p. 38. 



D. 2.II; A. 2.14; P. i.io; V. 1.5; L.l. circa 132. 



Cylindrical, the height being about equal to the breadth. 

 Free portion of the tail compressed. Height 10, about 1 1 in 

 total length. Head 2.3, 2.5 in length with caudal. Eye thrice 

 in postorbital part of head and 1 "2 in interorbital space and 

 9 times in snout. Upper surface of head flat, with a rather 

 shallow median groove of moderate width; supraorbital region 

 indistinctly striated. Two thirds of maxillary hidden by the 

 praeorbital. Operculum scaly. Canines rather small, slightly 

 directed backwards. Tongue smooth. Pectorals a little more 



