Typical crustacean
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- Anatomy of crustacean
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Prawn
The common names ‘prawn’ and ‘shrimp’ are often used synonymously for the same crustaceans in different parts of the world. This field guide uses the terms as most commonly used in Australia. Where Australia has susceptible species, they are referred to as prawns. However, where the susceptible species referred to is exotic to Australia, it is referred to as shrimp.
Source: Illustration © State of Queensland, Department of Primary Industries and Fisheries, 2008 (illustrator: R Bowater)
Black tiger prawn (Penaeus monodon).
Source: I East
Crab
External anatomy of a crab.
A = antenna. AB = abdomen (underneath). C = claw. CA = carapace. E = eye. SL = swimming leg. WL = walking leg.
Source: Illustration © State of Queensland, Department of Primary Industries and Fisheries, 2008 (illustrator: R Bowater)
Internal anatomy of a crab (cut down the centre and looking side on). AG = antennal gland. DG = digestive gland. E = eye. H = heart. HG = hindgut. M = midgut. O = oesophagus. S = stomach. SG = supraoesophageal ganglion. TG = thoracic ganglion. VNC= ventral nerve cord.
Source: Illustration © State of Queensland, Department of Primary Industries and Fisheries, 2008 (illustrator: R Bowater)
Blue swimmer crab (Callinectes sapidus) with carapace removed revealing internal structure.
Source: O Zmora
Freshwater crayfish
External anatomy of a freshwater crayfish.
Source: Aquatic Animal Health, Product Integrity, Animal and Plant Health, DAFF
Internal organs in section.
Source: Aquatic Animal Health, Product Integrity, Animal and Plant Health, DAFF
Redclaw crayfish (Cherax quadricarinatus).
Source: C Jones
Redclaw crayfish with section of carapace removed, revealing location of the gills.
Source: C Jones
06 Oct 2009