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Eastern
Elliptio (Elliptio complanata)
| Description |
-Shell: 125
mm long, 65 mm high and 40 mm wide
-Periostracum*: brownish or blackish and unrayed exept
in some young specimens
-Nacre**: purple in most specimens, but pinkish or whitish
in some |
| Distribution |
-Southern James
Bay drainages and the St. Lawrence system (except Lake Huron
south of Georgian Bay, Lake Michigan, and most of Lake Erie)
south in the Atlantic drainage to Georgia |
| Ecology |
-Shallow water of
permanent lakes, rivers and medium-sized streams
-Found on gravel, sand, clay, or mud bottoms |
Source: Clark Arthur H. 1981. The Freshwater Molluscs
of Canada. National Museum of Natural Sciences/ National
Museums of Canada
*Periostracum: the outer
parchment-like layer of a mollusc shell
**Nacre: the pearly inner layer characteristic of some
mollusc shells
Eastern Elliptio
in the Petitcodiac River Watershed
- "Common and/or abundant"
in areas of appropriate habitat
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