270 



GAMMARTD.E. 



very broad in the second. The walking feet are all about 

 the same length. The posterior pair of caudal ap- 

 pendages are double branched, and the central tail-piece 

 is single and squamiform. 



This genus was established by Leach to receive a 

 species discovered by Montagu. But Kroyer and 

 Dana in following him, have certainly mistaken the de- 

 scription of Leach, since the two species which the 

 former has described and figured do not belong to this 

 genus at all, but to that of Montagua. 



The following vignette represents one of the Plymouth 

 fishing-boats denominated locally " Hookers." It is from 

 a small picture by Condy. 



