Pace. 
ACEPHALA,........ 166 
PAIGE 122 sisleteteinisjelisicierel | LL 4 
Achatina flammigera,... 56 
— Salidenwenteyeeieiey (0.0 
oa Sirlatayee mn. sce OO 
—_— vexillum,..... 56 
— virginea,..... 56 
Alasmodon arcuata,..... 197 
—_— corrugata,... 198 
— marginata, .. 196 
a undulata,.... 198 
— tugosa,..... 196 
Amphidesma equalis,... 238 
— flexuosa,... 237 
_ lepida, .... 238 
_ orbiculata, . 237 
— punctata, .. 237 
= radiata, .... 238 
— transversa,. 237 
Amnicola cincinnatensis,. 88 
—  grana,....... 88 
— limosa; 2c... 88 
1) PPLUSHRIGAs arate ere ON 
==) nickJianaye ce ico 
— porata, ...... 88 
Ampullaria depressus,... 124 
— hopetonensis, 124 
[Fauna — Parr 6.] 
INDEX. 
Pace. 
Ampullaria paludosa, ... 124 
Anatina papyracea,..... 235 
ANATINIDA, ...-.2.... 234 
Anatifa anserifera, ...... 254 
— dentata, ...<0.00 255 
—= Jeeky Nees guoae 7st 
sat J AWALT CAs i pjare fae ler ofe OD) 
Anculotus angulatus,.... 102 
— carinatus,.... 101 
— costatus,..... 102 
— dentatus,..... 102 
— melanoides, .. 102 
— _ monodontoides, 102 
— nigrescens,... 102 
— pictus, ...... 103 
_ proerosus,..,. 103 
— plicatus, ..... 103 
—_ pumilus,..... 103 
— subglobosus,.. 103 
_ teniatus,..... 103 
—_ trivittatus,.... 102 
Ancylus calcarius,...... 13 
—  diaphanus,.... 18 
==) «5 Ossie ckten lS 
nb ws WLUISCHS: elesefalics’s) «aeeliS 
= 5, snuttallla seis. 
—  parallelus,..... 13 
35 
Ancylus rivularis, ...... 
== tardusyirerdcyo.s.s s 
Anodon benedictensis, . .. 
—  edentula, ...... 
—  excurvata, ..... 
—  ferussaciana,... 
—  fluviatilis,...... 
—  implicata, ..... 
— _ pavonia,....... 
— plana,......... 
—  subcylindracea, . 
—  unadilla,....... 
Anomia aculeata ....... 
—  ephippium,..... 
AR CAD eletefalet selelelereiete 
Arca incongrua,........ 
—  pexata, cr cecveee 
— ponderosa, ....... 
—  transversa,....... 
Arion hortensis,.......+ 
Ascidea manhattensis, . .. 
—  lobifera,........ 
sy MOVES 0: cictafol state 
—  plicata, ........ 
—  proboscidea, ... 
== » METISLICA SE vote lerele ole 
Astarte castanea, .....0 
Pace. 
12 
12 
204 
201 
202 
200 
203 
202 
203 
201 
200 
199 
168 
168 
176 
177 
176 
177 
177 
23 
259 
259 
259 
259 
259 
259 
220 
