220 FISHES FOR THE MARINE AQUARIUM. 



fish." The most singular feature about these pretty 

 creatures, however, is that the male fish is provided 

 with a pouch, formed by an infolding of the skin of 

 the lower surface of its body. Into this pouch the 

 female deposits her eggs, which are there fecundated 

 by the male and carried about by him, kangaroo- 

 fashion, until they are hatched ! It is not true, how- 

 Fig. 149. 



Head and Finless Tail of Oceanic Pipe-fish (Syngnathus czquoreus}, 

 nat. size. 



Fig. 150. 



Head and Finless Tail of Syngnathus anguineus. 



ever, that the young fish return to this pouch for 

 shelter, as has been stated ; the analogy to the 

 marsupial animals being there carried too far. The 

 one species of sea-horse rarely found in British seas is 

 usually to be seen in the same tanks as the foregoing, 

 in company with a Mediterranean species. Their 

 popular name is derived from the striking resemblance 

 of the outline of the head and neck to those of a 



