GAMMARID^. 141 



Podocerus (Leach) . First and second feet fanged ; 

 fang one-jointed; inferior antennae without lashes. 



P. variegatus. 



pulchellus. Fig. 254; mag. -f-. 



CoropMum (Latr.). Second feet not fanged; 



inferior antennas without lashes. 



C. longicorne. Fig. 255 ; mag. -f-. 



Unciola (Say). First and second feet fanged; 

 all the antennas tipped with many-jointed lashes ; 

 superior pair furnished with a minute appendage at 

 the base of the lash. 



U. irrorata. Fig. 256 ; mag. -f-. 



Family II. Gammaeidjs. 



Gammarus (Fabr.). Superior antennas slender 

 at the base, and furnished with a filament; first 

 and second feet fanged; fang of first feet one- 

 jointed. 



G. locusta. Fig. 257 ; head mag. y. G. longimanus. 

 marinus. Cranchii. 



camptolops. punctatus. 



pulex. carinatus. 



grossimanus. maculatus. 



Amphithoe (Leach). As Gammarus, but the 

 superior antennae are without an accessory fila- 

 ment. 



A. punctata. A. rubricata. Fig. 258 ; mag. \. 

 fucicola. dubia. 



obtusata. spinosa. Fig. 266 ; n. s.)=De.vamine 



Moggridgei. carino-spinosa. j (Leach). 



Leucotlioe (Leach). Fang of first feet two- 

 jointed ; superior antennae without a filament. 



L. articulosa. Fig. 259 ; mag. -f-. 



