125 



Nom. in dig. : Djulong-djulong (Malay Batavia), Kadjang 

 or Langsar (Malay Bantam), Toda palpia (Riouw). 



Habitat: Pulu Weh ! ; Singapore; Sumatra (Benkulen, Pa- 

 dang, Ulakan, Priaman) ; Nias ! ; Riouw; Biliton; Java (Batavia!, 

 Krawang!, Bantam, Semarang !, Prigi) ; Bali; Flores !; Ambon !; 

 Batjan ; Aru Islands. - - Philippines, Formosa, British India, 

 Ceylon. 



5. Tylosurus incisus (C. V.) 



Bclonc incisa Cuvier & Valenciennes, Hist. nat. Poissons XVIII. 1846, p. 451. 

 Belone leiuroides Bleeker, Nat. Tijdschr. Ned. Indie I. 1851, p. 479; Verband. 



Bat. Genootsch. XXIV. Snoekachtige Visschen, 1852, p. 25. 

 ? Belone brachyrhynchos Bleeker, Nat. Tijdschr. Ned. Indie VI. 1854, p. 61. 

 Mastacembelus leiuroides Bleeker, Ned. Tijdschr. Dierk. III. 1866, p. 233. 

 Belone liur aides Gtinther, Cat. Brit. Mus. VI. 1866, p. 243. 

 ? Mastacembelus bracliyrhynclms Bleeker, Ned. Tijdschr. Dierk. Ill, 1866, p. 232. 



Atl. Ichth. VI. 18661872, p. 49. 



Mastacembelus leiuroides Bleeker, Atl. ichth. VI. 1866 1872, p. 50. 

 ? Belone (Mastacembelus^) litii'oldes Steindachner, Sitzb. Math, naturvv. CI. Akad. 



Wien LX. I. 1870, p. 570. 



? 7y/osttrtts leiuroides Fowler. Proc. Acad. nat. Sc. Philad. (2) LVII. 1905, p. 493. 

 Belone liuroides Giinther, Sudsee-Fische, Heft VIII. 1909, p. 352. 

 Belone incisa Max Weber, Siboga-Exp. Fische, 1913, p. 123. 

 Strongylura leiuroides Fowler, Proc. Acad. Nat. Sc. Philadelphia LXXI. 1919^.5. 



D. 2.17 18; A. 2.20; P. I.IO II ; V. 1.5; L. 1. iSo 190. 



Subcylindrical, the height being equal to or a little more 

 than the breadth of the body. Caudal peduncle as high as 

 broad or somewhat broader than high. Height 15 22, 17 25 

 in length with caudal. Head 2.5 2.7, 2.7 2.9 in length with 

 caudal. Eye 2 2.5 in postorbital part of head, 1.2 or some- 

 what less in interorbital space and 6 8 times in snout. Upper 

 surface of head flat, with a rather shallow scaly median groove, 

 which does not widen anteriorly. Supraorbital region, frontals 

 and parietals densely striated. The upper surface of the beak 

 is also provided with deep longitudinal furrows. Height of 

 mandible below pupil scarcely equal to half diameter of eye. 

 Maxillary only just visible below praeorbital, when the mouth 

 is closed. Operculum scaly. Canines well developed, slender, 

 straight. Tongue smooth. Pectorals somewhat longer than post- 

 orbital part of head. Base of ventrals midway between base 

 of caudal and middle or frontborder of eye. Length of ventrals 

 about 3 /4 f tnat f pectorals. The middle and hinder dorsal 

 and anal rays subequal in length and much shorter than the 



