402 NEW YORK STATE MUSEUM 



caddis fly (teneral imago; undeterminable); i water skater, Hygro- 

 trechus sp.?, and fragments of a number of others; i small bullfrog 

 tadpole; considerable sand intermixed with fragments of Potamoge- 

 ton leaves; i Entomostracan (undetermined) 



3 grown bullfrog tadpoles 



I young green frog, Rana clamata Daud. The stomachs of the 

 tadpoles and of this frog were empty 



I small salamander, probably an Amblystoma 



I long-eared sunfish, Lepomis auritus Linn., whose stomach con- 

 tained : 34 little snails, the largest not over 1.5 mm long, apparently of 

 the genera P h y s a and Limnaea; 12 larvae of gnats (Chironomidae), 

 2 Chironomus sp.? and 10 Ceratopogon sp.? ; i larva of C h a u - 



1 i o d e s sp.? in fragments 



Mollusks 



305 snails, retained by our nets, not counting innumerable smaller ones, 

 which fairly covered some of the plants. The 305 were : 

 292 Physa heterostropha Say 

 13 Limnaea desidiosa Say 

 35 small clams, Sphaerium similis Say 



Leeches 



6 specimens 2-4 inches long of Haemopis (Semiscolex) 

 g r a n d i s Verrill 



A large number of minute glossiphonids, the counting of which was 

 not undertaken 



Insects 



The following were taken with a sweeping net from aDove the surface 

 of the water 



DRAGON FLIES 



I Aeschna sp.?, probably constricta Say, found transforming 

 I Ischnura verticalis Say $ 



1 Lestes unguiculata Hagen ^ 



2 Argia violacea Hagen ^ and $ 



1 Nehallennia irene Hagen $ 



BUGS 



43 water skaters, Hygrotrechus sp.? (A greater number got 

 away) 



2 Helochara communis Fitch 

 20 Cicadula sexnotata Fall 



