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Juday, Chancey (ed.) / Transactions of the Wisconsin Academy of Sciences, Arts and Letters
volume XXI (1924)

Baker, Frank Collins
The fauna of the Lake Winnebago region,   pp. [109]-146 PDF (11.3 MB)


Page 134


134    Wisconsin Academy of Sciences, Arts, and Letters.
  Pisidium minusculum St. Lake Butte des Morts, rare. Types of this species
were from the Fox River.
  Pisidium, sargenti St. Lakes Winnebago and Butte des Morts, not common.
  Pisidium adamsi aine St. Lakes Winnebago and Butte des Morts, rare.
  Pisidium, strengi St. Same localities as above, not common. Pond in Ter-
rel's gravel pit.
  Pisidium decorum St. Lake Butte des Morts, rare.
  Pisidium griseolum St. MS. Lake Winnebago, very rare.
  Pisidium milium Held. Lake Winnebago, rare.
  Pisidium walkeri St. Lake Winnebago, not common.
  Pisidum tenuissimum St. Lakes Winnebago and Butte des Morts, common.
  Pisidium scutellatum cristatum St. Lake Winnebago, not common.
  Pisidium vesiculare St. Lake Winnebago, not common..
  Pisidium medianum St. Lake Winnebago, common.
  Pisidium, clavatum St. MS. Lake Winnebago, not common.
  Pisidium splendidulum Sterki. Lake Winnebago, rare.
                             PLEUROCERIDAE
  Pleurocera acuta Raf. Very abundant in Lake Winnebago.
                              AMNICOLIDAE
  Somatogyrus subglobosus (Say). Omro, Fox River, rare. Lakes Winnebago
and Butte des Morts, common.
Amnicola limosa (Say). Omro, Fox River, common.      Lake Butte des
Morts, common.
Amnicola limosa porata (Say). Lake Winnebago, very abundant and the
dominant form.
Amnicola judayi Baker. Lakes Winnebago and Butte des Morts. Not com-
mon.
Amnicola walkeri Pilsbry. Lakes Winnebago and Butte des Morts. Common.
Amnicola lustrica Pilsbr5y. Lake Winnebago, rare.
Amnicola emarginata Kiister. Common in Lakes Butte des Morts and Win-
nebago.
  Bythinia tenaculata (Lin.) Lakes Winnebago and Butte des Morts, very
common, especially in vegetation.
                              VALVATIDAE
  Valvata tricarinata (Say). Lakes Winnebago and Butte des Morts. One of
the most abundant mollusks in these lakes. Five varieties have been noted
in
the lake material; their relative abundance is shown in table 1.
  V. tricarinata simplex Gould         V. tricarinata supracarinata Baker
  V. tricarinata basalis Vanatta       V. tricarinata perconfusa Walker
  V. tricarinata unicarinata DeKay


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