Orconectes immunis

Alternative names

 * Paper Shell Crayfish, Soft Shell Crayfish, Calico Crayfish

Origin

 * Maine and Connecticut in the east to Colorado and Wyoming in the west, and from Alabama in the south to Canada in the north. In Canada, it has been recorded from Manitoba, Ontario and Quebec although the populations in Quebec may be the result of introductions by anglers from New York; the Canadian populations are centerd in southern Ontario. It is believed to have been introduced to a number of states in New England, including Massachusetts, Maine, New Hampshire, Rhode Island and Vermont.

Sexing

 * Females have wider pleopods to hold eggs

Tank compatibility

 * Peaceful

Diet

 * Omnivorous; will scavenge, and eats worms, and insects inhabiting the substrate

Feeding regime

 * Daily

Environment Specifics

 * Planted tank

Behaviour

 * Mixes well

Identification

 * A close relation of Orconectes limosus.