Baker—The Fauna of The Lake Winnebago Region, 137 
Zonitoides nitida (Muller). Doemel Point, Roe Point, lake shore near Osh¬ 
kosh, Lake Winnebago, common. 
Endodontidae 
Pyramidula alternata (Say). Doemel Point, Lake Winnebago; woods on 
Plummers Point, Lake Butte des Morts, abundant. 
Pyro/midula cronTchitei anthonyi Pilsbry. Woods on Plummers Point, com¬ 
mon. 
Helicodiscus lineatus (Say). Woods on Plummers Point, common. 
SuCCINEIDAE 
Succinea ovalis Say. Woods on Plummers Point, common. 
Succinea retusa Lea. Swale north of Oshkosh; Par Eockaway Point, shore 
near fish hatchery, Oshkosh; shore of Lake Butte des Morts, north of Oshkosh, 
abundant. 
Succinea avara Say. Common near shores of both lakes. 
Succinea avar major W. G. Binney. Far Eockaway Point, Lake Winnebago, 
specimens 12 mm. in length. 
PUPILLroAE 
Strobilops virgo (Pilsbry). Woods on Plummers Point, Lake Butte des 
Morts. 
StroMlope ajfinis (Pilsbry). Common, associated with above. 
Gastrocopta contracta (Say). Doemel Point, Lake Winnebago; woods on 
Plummers Point. 
Vertigo ovata Say. Doemel Point, Lake Winnebago. 
Auriculidae 
Carychium exiguum canadense Clapp. Common in woods on Plummers Point. 
ANIMALS ASSOCIATED WITH THE MOLLUSCA 
The following list includes the species or genera of the invertebrate animals 
found associated with the Mollusca. The list does not include all species that 
inhabit the territory under consideration, only those taken in dredgings. The 
names of those specialists who determined the groups are given in the intro¬ 
duction. All material is from the lakes. 
Hydrozoa 
Hydra oligactis Pallas 
PORIFERA 
Spongilla fragilis Leidy 
