Fig. 13. Invertebrate life on mud bottom, water 10 feet deep. Dredged from 

 area of 64 square feet. The principal animals are May-fly larvae (Hexagenia, 1) ; 

 Midge-fly larva; (Chironomus, 2); finger-nail clams (Pisidium, 3); snail shells 

 (Amnicola, 4) ; many empty cases of caddis-fly larvae are present (Molanna, 5, 

 Leptocella, 6). Middle of Short Point Bay. 



