114 CLASS XIV. 



granular, round in sphenoid bone. Brancliiostegous membrane with 

 11 — 13 rays. 



Sp. Bidyrinus Plamieri, Alhula macrocephala Valenc, Alhida Plumieri 

 Bloch, Sijst. Ichth. Tab. 86, Lacep. Poiss. v. PI. 14, fig. i ; West Indian 

 Sea. — Butyrinus hananus, Argentina fjlossodonta FoKSK., Lackp. Poiss, 

 v. PI. 8, fig. 2 ; in the Indian and Red Seas^. 



Hyodon Lesueur. Body compressed, with belly carinate. 

 Scales moderate. Teeth in jaws conical, with a single row in 

 upper, a double row in lower. Teeth in vomer, in palate and 

 pterygoid bone ; teeth of tongue large, subulate, recurved. Bran- 

 chiostegous membrane with 9 — 10 rays. Dorsal fin small, placed 

 over the beginning of longer anal fin. 



Sp. Hyodon tergisus Lesueur, Cuv. et Val. Poiss. xix. PI. 572, &c. ; fresh- 

 water fishes of North America. 



JElops L. Body elongate, with abdomen prominent, round, com- 

 pressed towards the tail, covered with moderate scales. Gape of 

 mouth ample. Teeth very small, crowded in jaws, vomer, sphenoid, 

 palatine and pterygoid bones. Branchial apertm-e ample ; brancliios- 

 tegous membrane with 25 — 35 rays. Acute lamella at the base 

 of pectoral and ventral fins, as well as above and below caudal 

 fin. 



Sp. Elops saurus L. (and Argentina Carolina cjusd.), in the Western and 

 Eastern hemispheres, in the Atlantic Ocean, the Red Sea, tlie Indian 

 Ocean, &c. — Elops lacerta Valenc, Cuv. et Val. Poiss. xix. Pi. 575, 

 Western Coast of Africa. 



Megalops Lac. 



This genus almost agrees with the preceding, but is distinguished by a 

 smaller number of gill-rays (22 — 25) and by the elongation of the last ray 

 of the dorsal fin, which as a long thread reaches nearly to the caudal fin, 

 also by larger scales and large eyes. Sp. Megalops atlanticus Valenc, 

 Canieripuguacu Makcgr. Hist. Brasil. p. 179 {Clupea gigantca Shaw), 

 which attains a length of 3' — 12'; — Megalops indicus Valenc, Clupea 

 cyprinoides Broussonet, Icldli., Decas i. 1782, Tab. 9, Cuv. et Val., 

 Poiss. XIX. PI. 576 ; this species, which is often confounded with the pre- 

 ceding, appears to continue always much smaller. 



^ To this genus, beyond doubt, belong the description and figure of eenen zeldza- 

 men visch, Conorhynchus of C. Nozeman in the Uitgez. Verliand. iii. p. 381, PL 25. — 

 N. says that the fish was a native of the Mediterranean. Hitherto, however, no 

 species of the genus from that sea is found in collections. 



