SYNOPSIS. 409 



immediately behind the vent, small and inconspicuous ; 

 tail fan-shaped ; colour pale brown, with transverse bars 

 of dark brown. — Linn. Perm. Brit. Zool., iiL p. 184, 

 pi. 26 ; Yarr. Brit. Fish., u. p. 432. 



Sp. 204. S. Typhle. Deep-nosed Pipe-fish. Head not raised 

 above the level of the back, snout continued nearly in a 

 line with it, and so deep as to be nearly paralkl in the 

 abdominal line : body hexagonal anteriorly ; caudal fin 

 somewhat pointed ; colour olive-green, mottled and spotted 

 with yellowish brown and yellowish white. — Linn., Don. 

 Brit. Fish., pi. 5Q ; Jenyas' Brit. Vert., p. 485: Yarr. 

 Brit. Fish, ii. 439. 



Gen. XCVIII. Acestra. Pectoral, ventral, anal, and cau- 

 dal fins wanting ; abdomen without a pouch under the taU in 

 both sexes ; in other respects nearly as in Sygnathus. 



Sp. 205. A. cequorea. Equorial Pipe or Ntedle-fish. Fonn 

 tslender and elongated, gradually narrowing behind into a 

 narrow tail ; body compressed, an acute dorsal and ab- 

 dominal ridge, and three others, less strongly marked on 

 the sides ; dorsal and vent near in the middle ; colour 

 yellowish, with transverse pale lines, one on each joint, 

 and another down the middle of each plate. — Sygnathus 

 sequoreus, Linn., Mont. Mem. Worn. Sac, i. p. 85, pi. 4, 

 fig. 1 ; Penn. Brit. Zool, iii. p. 188; Yarr. Bnt. Fish., n. 

 p. 442. 



Sp. 206. A. angidnea. Snake Pipe or Needle-fish. Anterior 

 part of the body slightly octangular, the whole body slen- 

 der, the tail very much produced and very narrow ; angles 

 on the surface and a series of transverse plates almost ob- 

 solete \ dorsal entirely before the middle ; colour olive- 

 green ; irides red ; pupil black. — Ya')'r. Brit. Fish., ii. 

 p. 445. Sygnathus ophidion, Sha%o''s Gen. Zool, v. p. 453, 

 ph 179. 



Sp. 207. A. ophidion. Straight-nosed Pipe or Needle-fish. 

 Body long, slender, and cylindrical> slightly compressed 

 antenotly, tail round and gradually tapering to a fine point ; 

 Bnout short and nearly as broad as the head, the latter of 



