402 TELEOSTEI. PlIl'SOSTOMI. 



diam. from eiul of snout, and the same apart. Cleft of mouth 

 oblique ; the maxilla extends to rather behind the posterior margin 





Fig. 125. Etopa saurus. 



of the orbit. Fins anal rather more concave than the dorsal ; 

 caudal deeply lobed. Scales a few fine rows form a sort of sheath 

 to dorsal and anal fins, also some over the root of caudal. Colout 

 silvery; fins yellowish, with a greenish tinge. 



Hob. Tropical and subtropical seas ; attaining a considerable 

 length. 



13. Genus MEGALOPS, Commerson. 



Branchiostegals numerous : pseudobranchise absent. Gill-mem- 

 branes entirely separated. Body oblong and compressed. Mouth 

 anterior, lower jaw prominent. A narrow bony plate adherent to 

 the symphysis of the mandibles, and covering the space inter- 

 mediate between the two bones. Villiform teeth in the jaws, vomer, 

 palatine and pterygoid bones, also on the base of skull and on the 

 tongue. 



Geographical Distribution. All tropical seas and many fresh 

 waters. 



516. (1.) Megalops cyprinoides. (Fig. 126.) 



Clupea cyprinoides, Broussonet, Ich. t. ix. 



Megalops cyprinoides, Day, Fish. India, p. 650, pi. clix, fig. 3 (see 

 synon.). 



Kimdittga, Tel. ; Punnikowu and NaJutrm, Ooriah ; Cunnay, Mai. ; 

 Moran cundai, Tamil ; Nya-tan-youet and Nya Koonya, Burmese. 



B.xxiv-xxvi. D. 19-21. A. 24-27. C. 19. L. 1. 37-42. L.tr. 5-6/6. 

 Length of head 4| to 5, height of body 4| to 5 in the total length. 

 Eyes with narrow adipose lids, diameter 3| to 3 in the length of 

 head, about | a diameter from end of snout and also apart ; the size 

 of the eye in large specimens is frequently comparatively larger than 

 in small ones. Fins dorsal commences opposite the ventral, and 

 is two thirds as high as the body below it, its upper edge concave, and 

 its last ray prolonged. Caudal deeply lobed. Colour back bluish 

 green in the adult, lighter in the immature. Abdomen silvery, 



