Great Lakes Water Life Photo Gallery

Image Link	Scientific Name	Lake Superior	Lake Michigan	Lake Huron	Lake Erie	Lake Ontario	Habitat
	Collotheca spp.						Littoral.
	Collotheca algicola
	Collotheca ambigua				x
	Collotheca campanulata				x
	Collotheca cornuta				x
	Collotheca edentata				x
	Collotheca mutabilis		x	x	x	x	Commonly occurs in the plankton late summer through early fall.
	Collotheca ornata				x
	Collotheca pelagica	x	x	x			Commonly occurs in the plankton.
	Cupelopagis vorax				x
	Stephanoceros spp.
	Stephanoceros fimbriatus	x	x	x	x		Probable benthic species occassionally found in the limnetic zone. Normally attached to a substrate. Reported only in summer.
	Stephanoceros millsi				x

Based on: A Guide to the Rotifers of the Laurentian Great Lakes. RS Stemberger. 1979. U.S. EPA. EPA-600.
with additions from:
A Lakewide Comparison of Zooplankton Biomass and Its Species Composition in Lake Erie, 1983-87. Makarewicz, Joseph C.J. Great Lakes Res. 19(2):275-290. 1993.
A Decade of Predatory Control of Zooplankton Species Composition of Lake Michigan. Makarewicz, Joseph C., Bertram, Paul, Lewis, Theodore, and Brown, Jr., Edward H. J. Great Lakes Res. 21(4):620-640. 1995.
Feasibility of Shoreside Monitoring of the Great Lakes. Makarewicz, Joseph C. J. Great Lakes Res. 17(3):344-360. 1991.
Lake Huron Rotifer and Crustacean Zooplankton, APRIL-JULY, 1980. Evans, Marlene S. J. Great Lakes Res. 12(4):281-292. 1986.
Seasonal Abundance of Planktonic Rotifers in a Nearshore Area of Central Lake Michigan. Duffy, Walter G., and Liston, Charles R. J. Great Lakes Res. 4(1):46-49. 1978.
Lake Superior: an invasion coldspot? 2003. Igor A. Grigorovich, Alexei V. Korniushin, Derek K. Gray, Ian C. Duggan, Robert I. Colautti& Hugh J. MacIsaac. Hydrobiologia 499: 191-210.

Collotheca algicola

Alternative Names: Collotheca = Floscularia Profile: Have specialized funnel-like corona studded with bristles to trap prey such as protozoans and rotifers.

Collotheca ambigua

Alternative Names: Collotheca = Floscularia Profile: Have specialized funnel-like corona studded with bristles to trap prey such as protozoans and rotifers.

Collotheca campanulata

C. campanulata

Information provided with permission of The Academy of Natural Sciences, Philadelphia, PA

Alternative Names: Collotheca = Floscularia Profile: Have specialized funnel-like corona studded with bristles to trap prey such as protozoans and rotifers.

Collotheca cornuta

Q-T Movie of a feeding Collotheca

The Homepage of Ruediger Rudolf

Alternative Names: Collotheca = Floscularia, Collotheca ornata cornuta

Profile: Have specialized funnel-like corona studded with bristles to trap prey such as protozoans and rotifers.

Collotheca edentata

Alternative Names: Collotheca = Floscularia Profile: Have specialized funnel-like corona studded with bristles to trap prey such as protozoans and rotifers.