154 POND COMMUNITIES 
TABLE XXX 
SNAILS 
; | Pond Numbers 
Name = 
r | 5¢ 7a | 14b 30 52 93 95 
Amnicola— | 
Amnicola limosa Say.......... * * * * 
Amnicola cincinnatiensis Lea....  * * * a | 
Amnicola limosa parva Lea..... | * * 
Physa— | 
(PUA S@ ONIN SAN eee eee Bei Cc C c 
Physa heterostropha? Say....... * 
Lymnaeidae— | 
Lymnaea reflexa exilis Lea...... Ite 
Planorbis bicarinatus Say....... F F 
Lymnaea humilis modicella Say..)  * _ id 
Lymnaea obrussa Say.......... |, + = 
Planorbis parvus Say.......... * “2 > 
Planorbis campanulatus Say......  * “3 = s | 
Planorbis hirsutus Gld......... 3 2 *: » od * 
Planorbis exacuosus Say........ * od 
Lymnaea reflexa Say........... F F Cc Ay iA * z 
Planorbis deflectus Say......... ae | 
Planorbis trivolvis Say......... | | Cock a . 
Segmentina armigera Say....... | rib a a * ? 
TABLE XXXI 
Crustacea 
Pond Numbers 
Name pen Ee 
I 5¢ 7a 14) 30 52 93 95 
Hyalella knickerbockeri Bate...... (G c c 1 a 
Eucrangonyx gracilis Smith....... F Cc A A A A F 
Mancasellus danielsi Rich........ 2 * * 
Asellus communis Say........... | - = = 
Cambarus immunis Hagen........ F 1 ye Cc c 3 “3 = 
Cambarus blandingi acutus Girard. . ‘F F ? “p 
