364 SYNOPSIS. 



lowish-green, the whole surface with pretty large distinct 

 yellowish- white spots ; fins bright red. Fin- rays, D. 2 + 



52 : P. 28 : V. 1+9 : A. 1 + 25 : C. 30. Cuv. ^ Vol., 



X. p. 39, pi. 282 ; Yarr. Brit. Fish., i. p. 194. Zeus luna, 



Gmel., Linn. The opah, Penn. Brit. ZooL, iii. p. 299, 



pi. 46 ; Bon. Brit. Fish., pi. 97. 



Fam. VII. Toenioidce. Fam. of Riband-shaped Fishes. Body 



excessively elongated, narrow, and very much compressed; scales 



very small or wanting. 



Gen. XXXII. Lepidopus. Head elongated and pointed, 

 the lower jaw projecting, teeth in a single row in each jaw, cut- 

 ting and pointed; dorsal extending the whole length of the 

 body ; ventrals reduced to two scales ; branchiostegous rays 

 eight. 



Sp. 55. L. argyrem. Scabbard-fish. Body ensiform, eari- 



nated above and below ; dorsal fin commencing at the 



nape, the rays simple and flexible ; pectorals rather long ; 



tail distinct, and forked ; skin quite destitute of scales, the 



colour like burnished silver, slightly glossed with blue. 



Fin-rays, D. 105 : P. 12 : A. 17 : C. 17.— Cm. c& Val, 



viii. p. 223, pi. 223; Yarr. Brit. Fish., i. 198. Xipho- 



theca tetradens, Mont. Mem. Wern. Sac, i. p. 81, and 



623, pi. 2 and 3. Scabbard-fish, Penn. Brit. ZooL, iii, 



p. 210. 



Gen. XXXIII. Trichiurus. Ventrals and caudal wanting ; 



the tail produced into a long tapering compressed filament ; 



branchiostegous rays seven. 



Sp. 56, T. lepturus. Silvery Hair-tail. Body ensiform, be- 

 ginning about the middle to taper gradually to the tip of 

 the tail ; a single row of teeth on each side of each jaw ; 

 vomer without teeth, palatine bones each with a row of 

 very minute teeth : pectoral fin small, no vestige of ven- 

 trals nor any scale in their place ; skin covered with a sil- 

 very film ; the colour of the whole silvery, except the fins, 

 which are greyish- yellow ; edge of the dorsal speckled 

 with black. — Lirm., Cuv, S[ Val., viii. p. 237 ; Yarr. Brit. 

 Fish., i. p. 204. 



