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Freshwater crayfish are invertebrates, or creatures without back bones. Instead, they have a hard outer shell that is like armour protecting the inside of the body.
One of the largest freshwater crayfish in the world, this hairy-shelled species has jet black pinchers and a paler olive-green to brown body.
: These are the largest of the freshwater crayfish, with males reaching lengths of 20 - 25 cm and females up to 18 cm. They can weigh up to 300 g. They are blue to blue/green in colour, the blue being more intense when the water is clean.
platyceros), California Spiny Lobsters (Panulirus interruptus), Carniverous Chiton (Placiphorella velata), Coon Stripe Shrimp (Pandalus danae) Pandalidae, Coral Banded Shrimp, Decorator Crab (Loxorynchus crispatus), Elbow Crab, Freshwater Crayfish, ...
White-clawed crayfish, Britain's only native freshwater crayfish, are under serious threat from an American invader.
It feeds on annelid worms and insect larvae, freshwater shrimps, and yabbies (freshwater crayfish) that it digs out of the riverbed with its snout or catches while swimming.
The Murray cod is a predator that eats almost anything smaller than itself including crustaceans such as yabbies, shrimp and spiny freshwater crayfish, freshwater musselss and finned fishes such as introduced carp, goldfish, redfin, ...
For variety, offer smelt or cooked shrimp (not too often), but avoid freshwater crayfish. Adult terrapins should be fed daily, while juveniles need to be fed several times a day.
Young or adult Cane Toads are eaten by wolf spiders, freshwater crayfish, Estuarine Crocodile, crows, White-faced Heron, kites, Bush Stone-curlew, Tawny Frogmouth, Water Rat and the Giant White-tailed Rat.
It lives in the mangrove swamps of Northern Australia and has a preference for aquatic food such as fish, freshwater crayfish, frogs, waterworms and small crabs.
It has a call like a barking cough.
in the soil, but the class also includes worms that inhabit wells, marshes, and swamps. Other species live under rocks on the seashore, in the leaves of tropical trees and vines, on the surface of glaciers, or on the gills of freshwater crayfish.
 See also: Crayfish, Shell, Crustacean, Snake, Burro
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