200 ORDER ACANTHOPTERYG11. 



Lampris, Retzius. Chrysotosus, Lac. 



Has but a single dorsal, highly elevated before, as is 

 the case with the anal ; and which has but one small 

 spine at the base of its anterior edge. There are ten 

 very long rays to each ventral ; the lobes of their 

 caudal are also very long, but all these prolongations 

 become worn away with age ; sides of the tail cari- 

 nated. 



But one species is known, from the northern seas, 

 (Lampris guttatus, Retz.) 1 ; it attains a large size, is of 

 a violet colour, spotted with white, and has the fins red. 



Equula, Cuv. 



A single dorsal, but with several small spines, the an- 

 terior of which are sometimes very long ; the snout 

 highly protractile ; body compressed ; edges of the 

 back and belly dentated along the fins. They are 

 small fishes, several species of which inhabit the In- 

 dian Ocean 2 . 



1 It is the Zeus regius, Bonnat. Encycl. Icthyol. f. 155; the 

 Z. imperialis, Shaw, Nat. Misc., No. 140; the Z. lima, Gmel. ; the 

 Z. guttatus, Brunnich, Soc. des. Sc. de Copenh. iii. 388 ; the 

 Scomber pclagicus, Gunner. Mem, de Dronth., IV. xii. 1 ; the 

 Chrysotose lune, Lacep. IV. ix. 3 ; the Moon-Jish, Duham., Sect. iv. 

 pi. vi. f. 5 ; the Opah of Pennant, &c. 



The type of this genus is the Scomber equula of Forskal, of which 

 Gmelin has made his Centrogaster equula, and Lacep. hi* Ccesio 

 poulain. Add Eq. cnsifera, Cuv., or Scomber edentulus, Bl. 428, or 

 Leyognathe argent c, Lacep. Eq. car a, Cuv., Russ. 66. Eq. 

 fasciala, Cuv., or Clupeafasciata, Lacep. v. p. 463. Mem. du Mus. 



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