324 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



behind; least depth of caudal peduncle 3i^; pectoral 2; ventral 

 IYq, with filament. 



Red or rosy. Iris red. Eight broad, deep brown or blackish 

 bands transversely; first from occiput to eye and then obliquely 

 down posteriorly over cheek; second from predorsal vertically to 

 side of breast before pectoral; third from front dorsal spines to 

 belly; fourth from middle dorsal spines till just before anal or- 

 igin; fifth from last dorsal spines to middle of anal; sixth from 

 middle of soft dorsal base down over front of caudal peduncle and 

 bar vertically across outer portions of last anal rays; seventh as 

 pair at caudal with anterior on caudal peduncle and narrower 

 posterior at caudal base. Ventral dusky brown terminally. Length 

 202 mm. (Bleeker.) 



Siam, East Indies. 



DATNIOIDES POLOTA (Bnchanan-Hamilton) 



Coins polota Buchanan-Hamilton, Fishes of Ganges, 1822, pp. 95, 370, pi. 

 38, fig. 31. Ganges estuaries. — Schlegel, Fauna Japon., Poiss., pt. 1, 1842, 

 p. 17. — RicHAKDSON, Zool. Voy. Sulphur, Fish, 1844, p. 83 (note). — Cantob, 

 Journ. Asiat. Soc. Bengal, vol. 18, pt. 2, 1849, p. 998 (note in passing). 



Datnioides polota GUnther, Cat. Fish. Brit. Mus., vol. 1, 1859, p. 339 (Borneo, 

 India). — Knek, Raise Novara, Fische, 1865, p. 50 (Java). — Bleekek, Atlas 

 Ichth. Ind. N6erland., vol. 7, 1873-1876, pi. (27)305, fig. 1.— Day, Fishes 

 of India, pt. 1, 1875, p. 96, pi. 24, fig. 6 (Calcutta).— Martens, Preuss. Exp. 

 Ost Asien, 1876, p. 387 (Bangkok). — Kaeolj, Termesz. Fiizetek, Buda- 

 pest, vol. 5, 1881, p. 154 (Matang, Borneo). — Day, Fauna Brit. India, 

 Fishes, vol. 1, 1889, p. 534, fig. 162. — Vinciguekra, Ann. Mus. Civico Stor. 

 Nat. Genova, series 2, vol. 9, 1889-90, p. 162 (Rangoon). — Lloyd, Rec. In- 

 dian Mus., vol. 1, 1907, p. 227 (Akyab). — Vinciguekra, Ann. Mus. Civico 

 Stor. Nat. Genova, series 3, vol. 10, 1926, p. 587 (Sarawak). — Tikant, 

 Service Oc§anogr. P§ches Indo Chine, 6' Note, 1929, p. 168 (Thudaumot). 



Chaetodon quadtifasciatus (not Schneider 1801) Sevastianov, M6m. Acad. Sci. 

 St. Petersbourg, vol. 1, 1809, p. 448, pi. 18. 



Datnioides quadrifa^ciatus Bleekek, Atlas Ichth. Ind. Neerland., vol. 8, 1877. 

 p. 32 (Sumatra, Borneo).— Day, Fishes of India, Suppl., 1888, p. 786 

 (note). — Weber, Nova Guineae, vol. 9, pt. 4, 1913, p. 570 (Bivak Island, 

 Lorentz River, Rivierkamp and Alkmaar). — Hosa, Journ. Nat. Hist. Soc. 

 Siam, vol. 6, No. 2, 1923, p. 176 (Montaburi) ; Mem. Asiat. Soc. Bengal, 

 VOL 6, pt. 9, 1924, p. 486 (Patalung River mouth). — Fowler, Mem. Bishop 

 Mus., vol. 10, 1928, p. 212 (compiled). 



Coius quadrifasGlatns Hora, Mem. Indian Mus., vol. 5, 1923, p. 767 (Chilka 

 Lake). 



(Joins binotatus Gray, Illustrations Indian Zool. Hardwicke, vol. 3, 1833-1834, 

 pi. 89, fij.rs. 2-2a. India. — Schleigel, Fauna Japonica. Poiss., pt. 1, 1842, 

 p. 17 (note). 



Lobotcs hexagona Bleetker, Nat. Tijds. Nederland. Indie, vol. 1, 1850, p. 9. 

 Bandjermassing, in rivers; vol. 2, 1851, p. 165 (note). 



Depth 21/5 to 21/2 ; head 2% to 21/2, width 21/8. Snout 3% to 3% 

 in head from snout tip; eye 4% to 4:%, lyg to 1% in snout, greater 

 than interorbital ; maxillary to or 14 ^^ ^ye, expansion 2, length 2% 



