408 SYNOPSIS. 



parts marked with reddish brown. Thomp. Proc. Zool. 

 Soc., 1837, p. 55 ; Trans. Zool. Soc., ii. pt. iii., p. 207, 

 pi. 38; Yarr. Brit. Fish,., ii. 417. 



GEN. XCVI. AMMODYTES. Snout pointed, under jaw pro- 

 jecting ; dorsal and anal fins separated from the caudal by a 

 short space ; caudal forked ; gill-openings large. 



Sp. 201. A. Tobianus. Horner Sand-eel. Dorsal fin com- 

 mencing over the hinder extremity of the pectorals ; lower 

 jaw with a hard projection at the tip ; eyes small ; body 

 covered with small scales ; lateral line indented and 

 straight; upper parts of the head, back, and sides light 

 brown with blue and green reflections, most of the other 

 parts silvery. Cuv. Reg. An., Yarr. Brit. Fish., ii. 414 ; 

 Jenyns" 1 Brit. Vert., p. 482. 



Sp. 202. A. lancea,. Common Sand-eel. Dorsal fin com- 

 mencing on a line with the centre of the pectorals ; body 

 rather thicker in proportion tlian A. Tobianus ; in most 

 other respects, except in size, similar to that species. 

 Cuv. Reg. An.; Jenyns* Brit. Vert., p. 483 ; Yarr. Brit. 

 Fish., ii. p. 429. 



ORDER V. LOPHOBRANCHII ; FISHES WITH GILLS 

 IN TUFTS. 



FAM. XXIII. SygnathidcR. Fam. q/ Pipe-fishes. Body slen- 

 der , and covered with transverse angular plates, snout prolonged 

 into a tube, having the mouth placed at the extremity. 



GEN. XCVI I. SYGNATHUS. Mouth cleft nearly vertically ; 

 dorsal fin single ; ventral fins wanting ; caudal pretty large ; 

 male with an elongated pouch under the tail closed by two 

 folding membranes. 



Sp. 203. S. acus. Great Pipe-fish. Body heptangular an- 

 teriorly, tapering from about the middle of the tail ; head 

 and snout about one-seventh and a half of the entire 

 length ; no teeth ; operculum curved with radiating striae ; 

 termination of the dorsal nearly in the centre of the entire 

 length ; pectorals a little behind the gills;, rounded ; anal 



