FISHES. 383 



1st Tribe. 



Gills in the form of tufts, disposed in pairs along the 

 gill arches. 



This tribe constitutes the Lophohranches of Cuvier. 

 The gill-flap is large, but the opening is very small. The 

 body is angular, with a coat of mail. Air-bag large. Intes- 

 tines Avithout coeca. 



A. Mouth terminal. 



The snout is much produced, and the aperture of the 

 mouth is subvertical. 

 (1). No ventral fins. 



31. Syngnathus. Pipe-fish. Body little tapering and 

 the angles plain. The species of this genus have never 

 been determined in a satisfactory manner. Even the Bri- 

 tish species are in confusion. There are eight species de- 

 scribed, and some varieties; but it is probable that the 

 characters of the sexes have been hastily considered as 

 marks of distinct species. It appears from many observa^ 

 tions, that the species of this genus belong to the ovovivi- 

 parous division of fishes. 



32. Hippocampus. Tail more slender than the body. 

 The angles elevated into spinous ridges. H. vulgaris 

 {^Syngnathus hippocampus, Lin.). 



(2). With ventral fins. 



33. SoLENosTOMUs. Ventral fins united along with the 

 body into an apron, probably connected with the reproduc- 

 tive system, .S. paradoxa. 



B. Mouth under the snout. 



34. Pegasus. Snout depressed. Ventrals large. P. 

 draconis. Bloch. p. 109., f. 1. 



2d Tribe. 



Gills disposed on the arches in continuous pectinated 

 ridges. 



