298 



COLLEGE ZOOLOGY 



Fig. 221. — Order Amphipoda. A, Gammarus fasciatus, a fresh- water species 

 B, Caprella geometrica, a marine species. (From Paulmier.) 



^ 



Fig. 222. 



Fig. 222. — Order Stomatopoda. 

 (From Davenport, after Rathbun.) 



Fig. 223. — Order Decapoda. A, 

 (From Paulmier, after Rathbun.) 

 crab. (From Paulmier.) 



B 



Fig. 223. 

 Squilla empusa, the mantis shrimp. 



Callinectes hastatus, edible or blue crab. 

 B, Gelasimus minax, fiddler or soldier 



10! 



