SOME ONTARIO CRAYFISH

Paintings by Aleta Karstad

[Orconectes propinquus]

Orconectes propinquus, small, stream and lake native



[Orconectes virilis, light individual]

Orconectes virilis, our most widespread native crayfish, light individual



[Orconectes virilis, dark individual]

Orconectes virilis, dark individual



[Orconectes rusticus]

Orconectes rusticus, invasive alien from the Midwest



[Orconectes obscurus]

Orconectes obscurusus, introduced, nearest native populations northern New York



[Orconectes immunis]

Orconectes immunis, burrowing crayfish of ponds and temporary headwaters



Cambarus diogenes, burrow-dwelling crayfish



[Cambarus robustus]

Cambarus robustus, burly southwestern Ontario stream-dweller





Copyright held by Aleta Karstad, images available upon request

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