^^^ PISCES. 



Lampris, Retzius. Chrysotosus, Lacep. 

 Has but a single dorsal, highly elevated before, as is the case with 

 the analj and which has but one small spine at the base of its ante- 

 rior 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 carinated. 



Lamp, guttafus, Retz. Violet spotted with white, and red 

 fins.(l) It attains a large size, and inhabits the Arctic seas; the 

 only species known. 



Equula, Cuv. 



A single dorsal, but with several small spines, the anterior 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 Indian 

 Ocean. (2) 



The snout of some of these species, when in a state of quiescence, 

 is singularly retracted; by suddenly protruding it they are enabled 

 to seize upon such small fishes or insects as may. pass within 

 reach.(3) 



Mene, Lacep. 

 Snout of an Equula, and the entire body more compressed; abdo- 

 men trenchant, and very convex beneath; a circumstance resulting 

 from the development of the bones of the shoulder and pelvis, while 

 the dorsal line is almost straight; which throws the ventrals behind 

 the pectorals. 



But one species is known; the Mene Anne-Caroline, Lacep., 



(1) It is the Zeusregius, 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., Ill, 388; the Scomber pektgicus, Gunner, Mem. de Dronth., 

 IV, xH, 1; the Chrysotose lune, Lacep. IV, ix, 3; the Moon-Fish, Duham., Sect. IV,* 

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



(2) The type of this genus is the Scomber equula of Forskal, of which Gmelin 

 has made his Centrogasier equula, and Lacep. his Caesio poulain. Add, Eq. ensifera, 

 Cuv., or Scomber edentulus, Bl. 428, or Leyognathe argente, Lacep. -.Eq. cara, 

 Cuv., Iluss. 66;Eq.fasciata, Cuv., or Clupea fasciata, Lacep. V, p. 463, Mem. 

 du Mus. I, xxiii, 2t,Eq. splendms, Cuv., Russ. 61; Eq. daura, Cuv., Russ. 65; 

 Eq. totta, Russ. 62; Eg. coma, Russ., et Seb. Ill, xxvii, 4, 63; Eq. ruconius, 

 Buchan, XII, 35; Eq. minuia, Cuv., or Scomber minutus, Bl. 429, 2, which may 

 very possibly be the same as the Zeus argentarius, Forster, IX, Schn. 96. 



(3) Eq. insidiatrix, Cuv., or Zeus imidiator, Bl. 192, f. 2 and 3. 



