PORT PHILLIP BAY


Western Port Ghost Shrimp 

Calliax tooradin (Poore & Griffin, 1979)

View scientific description and taxonomy

Scientific Details

Rostrum short. Maxilliped 3 with long exopod. Chelipeds unequal (male not known); merus strongly lobed on lower margin; propodus tapering; fixed finger and dactylus simple. Telson much wider than long, much shorter than uropods.

Source: Poore, G.C.B. (2004) Marine decapod Crustacea of southern Australia. A guide to identification (with chapter on Stomatopoda by Shane Ahyong). CSIRO Publishing, Melbourne, 574 pp.

Taxonomy

Phylum:
Arthropoda
Subphylum:
Crustacea
Class:
Malacostraca
Subclass:
Eumalacostraca
Superorder:
Eucarida
Order:
Decapoda
Suborder:
Pleocyemata
Infraorder:
Axiidea
Family:
Callianassidae
Subfamily:
Eucalliacinae
Genus:
Calliax
Species:
tooradin

General Description

Rostrum short; claws (chelipeds) unequal in size, moveable finger of the smaller claw is longer than the fixed finger; tail fan semicircular in shape, much shorter than the oval branches of the uropod. Body up to 2.5 cm length.

Biology

As the common name would suggest, this ghost shrimp was previously only known from Western Port however there is one record of the species from Swan Bay at the mouth of Port Phillip Bay. As in most ghost shrimps the claws are unequal but in this species alone, the moveable finger of the smaller claw is longer than the fixed finger. The species (as Eucalliax tooradin) was listed as "vulnerable" under IUCN criteria.

Habitat

Intertidal mudflats and down to 3 m depth.

Soft substrates

Distribution guide

Southern temperate oceans.

Species Group

Prawns, shrimps, lobsters Ghost and mud shrimps

Depth

Shore (0-1 m)

Water Column

On or near sea floor

Max Size

25 mm

Diet

Organic matter

Harmful

Not harmful but a nip from large claws could be painful

Commercial Species

No

Global Dispersal

Native to Australia

Species Code

MoV 1595

Conservation Status

  • DSE Advisory List : Vulnerable
  • EPBC Act 1999 : Not listed
  • IUCN Red List : Not listed

Author

article author Taylor, J.

Dr. Jo Taylor is the Sciences Collections Online Coordinator at Museum Victoria.

Author

article author Poore, G.C.B.

Dr. Gary Poore is Principal Curator Emeritus at Museum Victoria.

citation

Cite this page as:
Taylor, J. & Poore, G.C.B., 2011, Western Port Ghost Shrimp, Calliax tooradin, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 29 May 2017, http://portphillipmarinelife.net.au:8098/species/5528

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