Browse Gastropod Families
Generally found in flowing water or proximity to flowing water (e.g.,
river mouths). Adults >25mm. Live-bearers - juvenile snails are retained
inside the mantle of the mother for several weeks. Feed primarily on particulate
detritus in soft sediments.
Shell aperture oval - operculum with a concentric
(central) nucleus. Outer shell surface greenish in color with no
banding, shell interior white to light blue. Shoulders of whorls
rounded and distinct from previous whorl - sutures that separate
whorls are indented. Smooth with no sculpturing other than fine
The shell aperture and operculum nearly circular
- operculum with a concentric (central) nucleus. Outer shell surface
brown to tan with 4 bands. Shell interior usually white or
with a purplish hue. Shoulders between shell whorls weak, sutures
are indented. 38mm.
Cipangopaludina chinensis and japonica
Shell aperature round to oval with a reflected,
black pigmented lip. Operculum with a submarginal (located nearer
the outer lip) nucleus. Outer shell surface light to dark olive-green,
without any color bands. Whorls are strongly convex, with a very
slight shoulder, and the suture is deeply indented. Shell sculpture
consists of fine growth lines, spiral lines and fine to moderate
malleations over the entire surface.
C. chinensis - shell with more rounded shoulders
and broader shape
C. japonica - narrower and more turreted
shell - sculpted (carinate). to 65mm.
anatomy - Freshwater Mollusk Conservation Society
- University of Michigan Animal diversity web
|Brown mystery snail
||Widely distributed across the eastern US and Canada. Parthogenetic.
|Chinese mystery snail
|Japanese mystery snail
|Banded mystery snail
Native to southern US but expanding its range northward.
** Reported locations based on a limited literature search.
Codes indicate presence reported but absence of a code should not
be interpreted as a species absence.
M (Lake Michigan) based on combination of:
E (Lake Erie) based on:
among zoobenthos, sediments, and organic matter in littoral zones
of western Lake Erie and Saginaw Bay. 1983. Richard A. Cole and
Diana L. Weigmann. JGLR 9(4)568-581.
macrobenthos of the exposed Canadian shores of the St. Lawrence
Great Lakes. 1978. D.R. Barton and B.N. Hynes. JGLR 4(1)27-45.
of some common benthic invertebrates in nearshore Lake Erie, with
emphasis on depth and type of substratus. 1988. David R. Barton.
and pelagic secondary production in Lake Erie after the invasion
of Dreissena spp. with implications for fish production. 2000.
Ora E. Johannsson, Ron Dermott, Donna M Graham, Julie A. Dahl,
E. Scott Millard, Debra D. Myles, and Jennifer LeBlanc. JGLR 26(1)31-54.
in the benthic macroinvertebrate community of the Cleveland Harbor
area of Lake Erie from 1978 to 1989. 1993. Kenneth A. Krieger
and Lloyd S. Ross. JGLR 19(2) 237-249.
and sublethal effects of sponge overgrowth on introduced dreissenid
mussels in the Great Lakes - St. Lawrence River system. 1995.
A Ricciardi, FL Snyder, DO Kelch and HM Reiswig. CJFAS 52:2695-2703.
to the deepwater benthos of eastern Lake Erie since the invasion
of Dreissena 1979-1993. 1997. R Dermott and D Kerec. CJFAS 54:
Great Lakes Nonindigenous Species List
O (Lake Ontario) based on:
X (Great Lakes coastal wetlands) based on:
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