770 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



TACHYSURUS LEIOTETOCEPHALUS (Bleeker) 



Aritis leiotetocephalus Bleekeb, Nat. Geneesk. Arch. Nederl.-Indie, vol. 3, pt. 



2, p. 292, 1846 (type locality: Batavia). — Webeb and Beaufort, Fishes 



Indo-Australian Archipelago, vol. 2, p. 282, fig. 112 (upper teeth), 1913 



(north of Rio Straits). — Herbe, Philippine Journ. Sci., vol. 31, p. 379, pi. 



1, fig. 3 (dentition), 1926 (San Miguel Bay; Tacloban; Manila market). — 



RoxAS and Mabtin, Dept. Agr. Comm. Manila Tech. Bull. 6, p. 45, 1937 



(reference). 

 Ariodes leiocephalus Bleekeb, Ichth. Arch. Ind. Prodr., vol. 1, Siluri, p. 88, 



1858; Versl. Meded. Akad. Wet. Amsterdam, vol. 12, p. 64, 1861 (Pinang) ; 



Atlas Ichth. Ind. N^erland., vol. 2, p. 40, pi. (12) 60, fig. 2, 1862 (Java, 



Singapore, Celebes). 

 Arius Uocephalus GiJNTHER, Cat. Fish. Brit. Mus., vol. 5, p. 165, 1864 (no 



locality). — DiJNOKEE, Mitt. Naturhist, Mus. Hamburg, vol. 21, p. 174, 1904 



(Kuala Pahang; Muar River). 

 Tachysurus leiotetocephalus Sxjvatti, Index Fish. Siam, p. 62, 1937 (Gulf of 



Siam; Bang Plasoi; Sriracha ) .—Fowler, List Fish. Malaya, p. 49, 1938 



(reference). 

 Bagrus (Ariodes) meyenii Mxjllek and Trosohel, Horae Ichth., pt. 3, p. 9, 1849 



(type locality: "Unbekannt" ) . 



Depth 4%; head 3, width li^. Broad snout expanded laterally 

 and upward between eyes and nostrils, blunt tip broadly rounded, 

 projects; eye TVs iii head, 34/^ in interorbital ; maxillary barbel 

 reaches nearly or quite to hind opercle edge, mandibular barbel % 

 maxillary, mental little over % maxillary; inner edge of upper lip 

 crenate-lobulate, lower lip covered with transverse corrugations; 

 upper curved villiform band of jaw teeth very sharp; lower band 

 narrower, sharp; 2 small, widely separated, oval patches on palate 

 and posteriorly 2 additional elongate patches narrowing posteriorly; 

 occipital process large, ovate, elevated centrally and in front, surface 

 rough with convoluted ridges, width 1^^ its length; top of head 

 smooth, with long median fontanel from snout nearly to occipital 

 process ; humeral plate smooth, triangular. Gill rakers 8 or 9, short, 

 stiff. 



Dorsal nearly equals depth, stout spine 1^2 in head, stout spine 

 with coarse granulations anteriorly, hind side nearly or quite smooth ; 

 small adipose fin with base 3 in anal base ; A. 15 to 17 ; caudal deeply 

 lobate; pectoral 1% in head, flattened spine equals dorsal spine, ser- 

 rated before and behind, rays 12 or 13. 



Reddish brown, with metallic silvery sheen, underside cream to 

 bluish white. Belly thickly sprinkled with minute violet brown 

 ocellated specks. Fins dusky yellowish. Length, 370 mm. (Herre.) 



Malacca, Pinang, Singapore, East Indies, Philippines. 



TACHYSURUS GONIASPIS (Bleeker) 



Arius goniaspis Bleekeb, Act. Soc. Sci. Ind.-N^erl., vol. 3, No. 9, p. 4, 1858 (type 

 locality: Trussan, Sumatra); p. (5) 44, 1857-58 (Priaman). — Guntheb, 

 Cat. Fish. Brit. Mus., vol. 5, p. 166, 1864 (tyne). — Bartlett, Sarawak 



