402 



GAMMARID^E. 



the preceding, and have the branches of equal length. 

 The telson is double, the apex of each division 

 being obliquely truncate, and furnished with a single 

 hair. 



The following vignette represents the Mallard Buoy, 

 in Plymouth Sound, near which this species was dredged 

 by us, in company with Dr. Falconer and Professor 

 Kinahan. 



