^•««^ 



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% 





09 



Fig. 36. Invertebrate animals from approximately 768 square inches on mud bottom, 

 Habitat No. cxiviii, Field No. 1049, water 10 feet deep. Chironomid larvae antl 

 Hcxagcnia nymphs are the principal live animals. The large number of 

 caddis-fly cases (mostly Molanna and Icptocerids, all empty and not used in 

 the valuation tables) and the small number of mollusks is noteworthy. The 

 mussels collected are not figured. 



