410 SYNOPSIS. 



the same breadth as the anterior part of the body ; anal 

 aperture near the middle, the dorsal with one- third in ad- 

 vance of it ; colour olive-green, sometimes tinged with 

 yellowish brown. Sygnathus ophidion, Linn. Sygnathus 

 lumbriciformis, Jenyns" 1 Brit. Vert., p. 488 ; Yarr. Brit. 

 Fish., ii. 447. 



Sp. 208. A. lumbriciformis. Worm Pipe or Needle-fish. 

 Nose very short and turned a little upwards ; eyes promi- 

 nent ; body nearly cylindrical, tapering at the hinder 

 extremity ; vent beneath the dorsal, about three-fourths 

 of that fin behind it, the dorsal containing about 30 rays ; 

 surface nearly smooth, colour dark olive-green. Sygna- 

 thus lumbriciformis, Yarr. Brit. Fish., ii. 450. Sygna- 

 thus ophidion, Little Pipe-fish, Penn. Biit. Zool., iii. 

 p. 187, pi. 26. 



GEN. XCIX. HIPPOCAMPUS. Snout tubular, with the mouth 

 at the extremity ; body laterally compressed, short, and divided 

 into longitudinal and transverse ridges ; both sexes with pec- 

 toral and dorsal fins ; females with an anal fin. 



Sp. 209. //. bremrostris. Short-nosed Sea-horse. Pale ash- 

 brown, with variable tints of blue over the head and tail. 

 Cuv. Reg. An. ; Jenyns^ Brit. Vert., 452 ; Yarr. Brit. 

 Fish., ii. p. 452. 



ORDER VI. PLECTOGNATHI ; OR FISHES WITH 

 SOLDERED JAWS. 



FAM. XXIV. GymnodontidcB. Fam. with naked Teeth. Both 

 jaws covered with a substance resembling ivory, which Is either 

 entire or divided in the middle by a suture, and serres the purpose 

 of teeth ; maxilfary firmly attached tn the side of tlie intermaxil- 

 lary, which aloi.e forms the jaw ; palatine arch immoreabk. 



GEN. C. TETRODON. Jaws divided in the middle, producing 

 the appearance of four teeth, two above and two below ; body 

 capable of inflation, and beset on the under side with spines. 



Sp. 210. T. Pennantii. Pennant's Globe-fish. Mouth small, 

 back nearly straight, dorsal placed far back, the anal op- 



