8 4 



lary reaches somewhat beyond frontmargin of eye, about 2 

 times in length of head. 3 5 diverging postfrontal striae. 

 Operculum more than twice as high as broad, suboperculum 

 rectangular, lower posterior corner rounded, hindmargin of 

 praeoperculum straight. Dorsal about half the diameter of the 

 eye nearer to caudal than to snout, its origin one eye-diameter 

 nearer to snout than to caudal. Length and height of dorsal 

 both equal to snout and eye. Anal as long as dorsal. Pectorals 

 longer than head without snout. Ventrals nearly under the 

 middle of the dorsal. Caudal 6'/ 3 in total length. Teeth on 

 the tongue only. Gillrakers 32, the longest about half length 

 of eye. Scales very thin, feebly crenulated. Praedorsal scales 

 about 14 15; 17 praeventral, 13 postventral scutes. Silvery, 

 back dark bluish. Fins hyaline. Length about 100 mm. 

 Habitat: Bali; Ambon!; Batjan! In sea. 



4. Pellona C. V. 



(CuviER & VALENCIENNES. Hist. Nat. Poissons XX, 1847, p. 300). 



Platygaster Swainson (name preoccupied). 

 Ilisha (Gray) Richardson (no description). 



Oblong, much compressed, convex, ventral profile strongly 

 serrated by thoracal and abdominal scutes. Scales of moderate 

 size, thin, deciduous. Lower jaw prominent, cleft of mouth 

 oblique, of moderate width. Oral border of upper jaw with a 

 ligament between lateral end of intermaxillary and prominent 

 middle of maxillary, which ligament may be replaced by a 

 small toothed supplementary bone. Two other supplemental 

 bones along the dorsal border of the maxillary. Minute teeth 

 on the jaws, in rasp-like bands on palatines, pterygoids and 

 tongue, none on vomer. Ventral fins very small. Upper pectoral 

 ray strong and broad. Anal fin long, 2 ! / 2 3 in length, with 

 33 54 rays. Its origin below or just behind dorsal, the origin 

 of which is behind ventrals. Caudal fin deeply forked. Gill- 

 rakers stout, not numerous (about 20), spinulous all round. 



Nomen indig. : Mata besar, Bulan bulan (Malay.). 



Synopsis of the species. 



A. Oral border of upper jaw with a supplemental bone 

 situated between lateral end of intermaxillary and pro- 

 minent middle of maxillary P. hocvenii p. 86. 



