General Description
Rostrum (extension of carapace between eyes) trilobed, medial lobe with up to 10 tubercles each side; lateral lobes half as long as medial lobe, separated by broad U. Fourth segment (merus) of first leg (pereopod 1) spinose on lower edge; distal margin of fifth segment (carpus) with strong lower spine, shorter upper spines; sixth segment (propodus) with denticles on lower margin and small upper spine distally; fixed finger one-fifth length of last segment (dactylus). Tail fan (telson) wider than long, smooth, margin concave. Carapace up to 4 cm long.
Biology
Very little is known of the biology of this family of animals but they are thought to be sediment feeders. They can only be found by destroying their habitats so are rarely seen.
Distribution
Southern temperate oceans, including eastern Australia.
Habitat
Intertidal to high subtidal, to depth of 9 m.
More Information
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Animal Type
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Animal SubType
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Brief Id
Mud shrimp with trilobed rostrum, lateral lobes half as long as medial lobe, separated by broad U.
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Maximum Size
4 cm
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Habitats
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Diet
Organic matter
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Hazards
Small claws but unlikely to nip.
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Endemicity
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Commercial
No
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Conservation Statuses
DSE Advisory List: Not listed, EPBC Act 1999: Not listed, IUCN Red List: Not listed
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Depths
Shore (0-1 m), Shallow (1-30 m)
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Water Column Locations
On or near seafloor
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Taxon Name
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Scientific Author
(Thomson, 1893)
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Common Name
Spiny Mud Shrimp
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Other Names
Sand-borer , Sponge Shrimp
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Phylum
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Subphylum
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Superclass
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Class
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Subclass
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Superorder
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Order
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Suborder
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Infraorder
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Family
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Genus
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Species Name
simsoni