The Relation of Mollusks to Fish in Oneida Lake 187 
1 Valvata bicarinata normalis, 4 mill. 
3 Planorbis exacuous, 2 mill. 
2 Planorbis antrosus, 5-6 mill. 
1 Pisidium species, 1% mill. 
1 Spherium vermontanum, 4 mill. 
Many fragments of shells. 
Crustacea. 2 Amphipods, Hyalella knickerbockert. 
Insecta. Caddis-fly, Helicopsyche borealis. 
Many fragments. 
Plants. Wild celery, Vallisneria spiralis, 1 piece 25 
mill. long, 1 piece 6 mill. long. 
Total intestine contents: 
WIG) PIRES A SSS PRS SES SAAL Se 60.00 per cent. 
CURLEY CET ARS USHA a 5 aie ges .05 per cent. 
TMS bE ass iciss sressuokte eke soko Meck oees 34.00 per cent. 
1 SATO Sa ares GAN Is Rt ns « 5.05 per cent. 
Tota yee ee Be aR ene Ves ec 100.00 per cent. 
No. 15. 170 mill. long. 
Stomach empty, food in intestine. 
Insecta. 1 beetle. 
3 Odonata nymphs (fragments)...... 30 per cent. 
Plants» -Leprecer of- leat. es... 5. eee eae 10 per cent. 
Indistinguishable matter (22.2... stestiess >= «= 60 per cent. 
No. 16. 150 mill. long. 
Stomach empty, intestine filled with macerated material. 
No. 17. 155 mill. long. 
Insecta. Odonata nymphs, legs and fragments.. 15 per cent. 
Dicestedy materials 557}. 22)be ee eos ee 85 per cent. 
GROUP 2. YOUNG. 
No. 13 (309). 93 mill. long. 
Mollusea. 16 Ammicola lustrica ...... 50 per cent. 
4 Planorbis species ...... 
Mass of shell iragments.... \ Bey use bee 
No. 14 (309). 110 mill. long. 
Mollusea. Fragments of shells........ 5 per cent. 
Crustacea. Hyalella knickerbockeri, legs, 
SO EES COROT MG CO eee 45 per cent. 
Plants. PMT ey oe Qo te DO EPS SOE 50 per cent. 
No. 
9 (309). 80 mill. long. 
Mollusca. 30 Amnicola lustrica, %-2 mill. long. 
1 Physa ancillaria warreniana, 2 mill. long. 
14 Planorbis, ¢c. f., campanulatus. 
Plants. Alge. 
