88 



Oblong, compressed, ventral profile regularly curved, much 

 more convex than dorsal one. Height 2 l / 2 2 3 / 5 , head 3 ! / 2 3 2 / 3 

 eye 2 ! / 2 2 3 / 4 , longer than snout. Two pairs of diverging lines 

 on surface of head, posterior halves of which run parallel. 

 Maxillary reaches below middle of eye, about 2 in length of 

 head. Oral border of maxillary without supplementary bone 

 (cf. P. hoevenii} but with a ligament instead. Origin of dorsal 

 distinctly nearer to snout than to caudal, behind the origin 

 of ventrals, which are shorter than eye and much nearer to 

 anal than to suboperculum. Pectorals nearly as long as head 

 without snout, nearly reaching to ventrals. Anal 2 2 / 5 2'/ 2 in 

 length, its origin behind the dorsal. Caudal scaly, deeply 

 incised, 3 2 / 5 3'/ 2 in length. Scales generally with vertical lines, 

 convex, hindmargin smooth. 25 26 abdominal scutes. Silvery, 

 back dark. Fins hyaline. Dorsal powdered with brown. Length 

 up to 170 mm. [Not seen by us]. 



Habitat: Java (Batavia) ; Sumatra (Priaman, Padang) ; 

 Singapore. British India. 



In sea. 



4. Pellona ditchoa C. V. 



Platygaster indicus Swainson, Nat. Hist. Fishes II. 1830, p. 294. (Name only). 

 Pellona ditchoa Cuvier & Valenciennes, Hist. Nat. Poissons XX. 1847, ? 3*3' 

 Pellona ditchoa Bleeker, Verb. Bat. Gen. XXIV. 1852, Haringacht., p. 24. 

 Pellona ditchoa Giinther, Cat. Brit. Mus. VII. 1868, p. 455. 

 Ilisha indica Bleeker, Atl. Ichth. VI. livr. 25, 26. 1872, p. 118. 

 Pellona indica Day, Fishes of India 4. 18781888 p. 644. 

 Pellona indica Pfeffer, Die Fische Ost-Afrikas, 1896. p. 69. 



B. 6; D. 1617; A. 37-395 P. 16; V. 7; L.I. 45; L. tr. 

 1415. 



Oblong, compressed, ventral profile much more convex than 

 the dorsal, strongest convexity below ventrals. Height 2*/ 2 2 3 / 5 , 

 head 3'/5 3 4 /s e Y e ^\T~ 3> V 3 longer than snout, nearly 

 equalling postorbital part of the head. Ridges as on head of 

 P. hoevenii, but their posterior half parallel. Maxillary reaches 

 below first half of eye, about 2 times in head. Oral border of 

 maxillary without a supplementary bone (cf. P. hoevenii} but 

 with a ligament instead. Second supplemental bone reaching to 

 hindborder of maxillary. Origin of dorsal nearer to snout than 

 to caudal, about half eye length behind origin of ventrals, 

 which are nearer to anal than to suboperculum. Ventrals 

 shorter than eye. Pectorals as long as head without snout, 



