FISHERY BULLETIN: VOL. 71, NO. 1 



CRUSTACEANS 



Remains of two groups of crustaceans — cir- 

 ripedes and decapods-^were present in the sam- 

 ples. Cirriped (barnacle) remains consisted of 

 calcareous plates, primarily compartments (wall 

 plates) plus a moderate proportion of opercular 



valves. Only balanomorph types were present, 

 and generally the thicker, more durable portions 

 were most numerous. Examples are illustrated 

 in Figure 23. None of the chitinous parts of the 

 skeleton, such as the covering of the appendages, 

 was present. Decapod crustaceans were repre- 

 sented by anomuran (hermit) crabs and brachy- 



B 



LirTrt-iiirrSi 



ii'rrniiiiriirrwnwi ^ 



tmi f HI II mill 



D 



Figure 23. — Skeletal remains of crustaceans and coelenterates. A - cirripedes, scutum and compartments; B - 

 anomuran and brachyuran, chelipod remains; C - Flabellum, corallite fragments; D - Acanella (?), axial skel- 

 eton remains. Each scale bar is 5 inm. 



34 



