156 



CRUSTACEA. 



with a swimming-tail ; outer antennae very long ; 

 claws large and flattened. 



P. platycheles. Fig. 295 ; n. s. 

 longicornis. 



FAMILY III. 



Dromia (M.-Edw.). Fourth and fifth feet very 

 small, turned so as to lie flat on the back, arid 

 ending in a small double claw. 



D. vulgaris. Fig. 296 ; i n. s. 



296 



297 



FAMILY IV. HOMOLAD^E. 



Lithodes (Latr.). Fifth feet minute, without 

 claws, concealed under the edge of the carapace ; 

 which is triangular, spiny, with a long, forked beak. 



L.Maia. Fig. 297; .*. 



