Gargantua area, campsite facing the Devil's Chair, Lake Superior Provincial Park, Algoma District, Ontario, Canada.
Very big for C. bartonii so I thought it might be robustus but it only has one row of tubercles on the inner palm. Habitat was small stream flowing through culvert
Small olive-coloured crayfish, orange-tipped claws. Found on a riverside path after flooding.
in minnow trap in 30 cm deep water in flowing Layton River
in minnow trap in 30 cm deep water in flowing Layton River
Small crayfish collected from under a rock in the Maitland River
On land 1 m from water