SYNOPSIS. 365 



GEN. XXXIV. TRACHYPTERUS. Body long and compressed ; 

 dorsal fin extending the whole length of the back, the anterior 

 rays elongated ; anal wanting ; caudal rising obliquely from the 

 extremity of the tail ; lateral line with a row of scales ; bran- 

 chiostegous rays six. 



Sp. 57. T. Bogmarus. Deal-fish, or Vaagmaer. Body silvery 

 white ; head dark grey, and two remote rounded spots of 

 the same colour on each side ; dorsal and caudal fins light 

 red ; lateral line below the middle throughout the greatest 

 part of its course, and covered with a series of oblong 

 scales, from each of which springs a small spine directed 

 forwards. Cuv. & Vol., x. p. 346 ; Yarr. Brit. Fish., i. 

 210. Gymnetrus arcticus, Cuv. Reg. An., Flem. Mag. 

 Nat. Hist., iv. p. 215, fig. 34. 



GEN. XXXV. GYMNETRUS. Dorsal extending the whole 

 length of the back ; anal wanting ; ventrals consisting each of a 

 single ray, long and filiform, and dilated at the tip. 



Sp. 58. G. HawTcenii. Hawkens' Gymnetrus. Front and mouth 

 nearly vertical ; back and belly dusky green, sides whitish, 

 varied with darker shades ; fins crimson, Block, pt. xii. 

 pi. 423 ; Cuv. $ Vol., x. p. 372 ; Yarr. Brit. Fish., i. 221. 

 GEN. XXXVI. CEPOLA. Body elongated and somewhat 

 compressed, gradually tapering from the vent to the hinder ex- 

 tremity ; dorsal the whole length of the back, anal nearly the 

 whole length of the belly, and both united to the caudal ; head 

 rounded, gape oblique ; branchiostegous rays six. 



Sp. 59. C. rubescens. Colour carmine or pale red, the upper 

 parts darkest, the sides with silvery undulating transverse 

 lines ; ventrals nearly white ; caudal ending in a point. 

 Linn., Cuv. & Vol., x. p. 388. Red Band-fish, Perm. Brit. 

 Zool, iii. p. 285; Don. Brit. Fish., pi. 105; Yarr. Brit. 

 Fish., i. 224. 



FAM. VIII. Mugilidce. Mullet Family. Body sub- cylindrical 

 covered with large scales; two dorsals, widely separate, the fir & 

 with only four spiny rays; ventrals attached a little behind tfa 

 pectorals; lower jaw with an eminence in the middle fitting into 

 a corresponding hollow in the upper; teeth very minute. 



