652 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



a^ Ilisha. Scales more than 46 in medial lateral series; preventral scutes 

 20 to 28. 



e^. Anal origin below front half of dorsal. 

 f. Depth 3% to 3%. 

 g^. Anal origin below first dorsal ray; maxillary not reaching % 



in eye pristigastroides 



ff. Anal origin below first third of dorsal ; maxillary reaches I2 in 



eye or beyond amblyuroptera 



f. Depth 4 to 4% sladeni 



e'. Anal origin below hind half of dorsal. 

 h\ Depth 3 to 3%. 

 i\ A. 42; dorsal origin nearer caudal base than snout tip. 



novacula 

 f. A. 45 to 50; dorsal origin equidistant from snout tip and 

 caudal base or nearer former. 

 j\ Ventral scutes not prominent. 

 fc\ Ventral inserted little nearer pectoral base than anal 

 origin. 

 Z\ Lower gill rakers 18 or 19; abdominal scutes 22+10 



or 11 filigera 



f. Lower gill rakers 21 to 23; abdominal scutes 24 to 



27+10 to 13 xanthoptera 



7l:^ Ventral inserted midway between pectoral base and anal 

 origin ; lower gill rakers 19 to 21 ; abdominal scutes 



20 to 23+8 to 10 nielastoma 



f. Ventral scutes prominent macrog'aster 



h\ Depth 31/2 to 4; A. 44 to 52 elongata 



Subgenus Euplatygaster Fowler 



Scales less than 46 in medial lateral series. Preventral scutes 16 

 to 20. 



ILISHA INDICA (Swainson) 



Playgaster indicus Swainson, Nat. Hist. Animals, vol. 2, p. 294, 1839 [on 

 Ditchoee Russell, Fishes of Coromandel, vol. 2, p. 74, pi. 192, upper fig., 1803 

 (type locality: Vizagapatam)]. 



Pellona indica Jebdon, Madras Journ. Lit. Sci., vol. 17, p. 145, 1851. — Day, Fishes 

 of India, pt. 4, p. 644, pi. 164, fig. 4, 1878 ; Fauna British India, Fishes, vol. 

 1, p. 381, 1889.— Pfeffer, Fische Ost-Afrikas, p. 69, 1896.— Lloyd, Rec. Indian 

 Mus., vol. 1, p. 220, 1907 (Akyab).— Vincigueeea, Ann. Mus. Civ. Stor. Nat. 

 Genova, ser. 3, vol. 10, p. 618, 1926 (Sarawak). 



IlisJia indica Bleeker, Atlas Ichth. Ind. Neerland., vol. 6, p. 118, pi. (1) 259, 

 fig. 4, 1866-72 (Java, Sumatra, Singapore, Banka). — Bean and Weed, Proc. 

 U. S. Nat. Mus., vol. 42, p. 591, pi. 75, fig. 3, 1912 (scale) (Batavia; 

 Pelaboean Ra toe). —Norman, Ann. Mag. Nat. Hist., ser. 9, vol. 11, p. 4, 1923 

 (India, Malay Peninsula, China). — Fowler, Journ. Bombay Soc. Nat. Hist., 

 vol. 30, No. 1, p. 38, 1924 (Calicut) ; vol. 30, No. 4, p. 3, 1926 (Bombay).— 

 TiRANT, Service Oc^anogr. Peches Indo-Chine, 6° note, pp. 121, 174, 1929 

 (Cochin China). — Fowle3{, Proc. Acad. Nat. Sci. Philadelphia, vol. 85, Jan. 

 20, p. 246, 1934 (reference) ; vol. 86, p. 86, 1934 (Bangkok) ; vol. 87, p. 94, 

 fig. 13, 1935 (Bangkok) ; vol. 89, p. 131, 1937 (Tachin) ; List Fish. Malaya, 

 p. 29, 1938 (reference). 



Cliipea melastoma (part) Cuvieb, Rdgne Animal, ed. 2, vol. 2, p. 319, 1829 (on 

 Ditchoee Russell). 



