FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 655 



Depth 3%, ventral profile little more convex than dorsal; head 

 34^. Snout equals or little shorter than eye, which 3^ in head; 

 maxillary reaches nearly ^ in eye; lower jaw strongly projecting; 

 ridges on head run parallel posteriorly, greatest interspace Vs of eye. 

 Lower gill rakers 20. 



Scales 43 in medial lateral series; 14 or 15 transversely. Ventral 

 scutes 19+8. 



D. (15)16, origin little nearer snout tip than caudal base; A. 

 40(42), origin below posterior part of dorsal, base length 3 in body; 

 ventral shorter than eye, inserted midway between anal origin and 

 pectoral base. 



Caudal dark edged. Length, 160 mm. (Norman.) 



India, East Indies. 



ILISHA MOTIUS (Buchanan-Hamilton) 



Clupanodon motuis Buchanan-Hamilton, Fishes of Ganges, pp. 251, 383, 1822 

 (type locality: Brahmaputra River). 



Cliipea motius Gray, Illustr. Indian Zool. Hardwicke, vol. 2, pi. 109, figs. 3-4, 

 1832-34. 



Pellona motius Valenciennes, Hist. Nat. Poiss., vol. 20, p. 323, 1847 (Ganges 

 mouth). — Bleekek, Verh. Batav. Genootsch. (Bengal), vol. 25, p. 72, 1853 

 (reference). — Gunthek, Cat. Fish. Brit. Mus., vol. 7, p. 456, 1868 (copied). — 

 Day, Fishes of India, pt. 4, p. 643, pi. 165, tig. 3, 1878 (Assam, Bengal, 

 Orissa) ; Fauna British India, Fishes, vol. 1, p. 381, 1889. 



Ilisha motius Norman, Ann. Mag. Nat. Hist., ser. 9, vol. 11, p. 5, 1923 (Assam; 

 Bengal). — Fowler, Proc. Acad. Nat. Sci. Philadelphia, vol. 85, p. 246, 1934 

 (reference). 



Platygaster parva Swainson, Nat. Hist. Animals, vol. 2, p. 294, 1839 (on 

 Gray). 



Depth S% to 4, ventral profile more convex than dorsal ; head 4l^ 

 to 41/2. Snout shorter than eye, which 2% in head; maxillary 

 reaches 14 in eye; lower jaw a little projecting; ridges on head run 

 parallel posteriorly. Lower gill rakers 22 to 24. 



Scales 45 ? in medial lateral series ; 12 or 13 ? transversely. Ven- 

 tral scutes 16 or 17+7 or 8. 



D. 16 or 17, origin much nearer snout tip than caudal base; A. 40 

 to 43, origin just behind dorsal, base length about 3 in body length; 

 ventrals equal eye, inserted little nearer pectoral base than anal 

 origin. 



A silvery lateral band. Length, 55 mm. (Norman.) 



Bengal, Assam. According to Day it does not exceed much over 

 100 mm. 



Subgenus Ilisha Richardson 



Scales more than 46 in medial lateral series. Preventral scutes 

 20 to 28. 



