PORT PHILLIP BAY


Weed Shrimp 

Hippolyte australiensis Stimpson, 1860

View scientific description and taxonomy

Scientific Details

Rostrum prominent, broad at base, without dorsal teeth and with 2-6 ventral teeth. Supraorbital spine present. Pereopod 2 carpus with 3 articles. Mandible without palp, with incisor process. Maxilliped 3 with exopod. Pereopods without arthrobranchs. Abdominal somite 6 without articulating posterolateral corner.

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:
Caridea
Family:
Hippolytidae
Genus:
Hippolyte
Species:
australiensis

General Description

Rostrum prominent, broad at base, without dorsal teeth and with 2-6 ventral teeth. Carapace with small spine above orbit of eye. Fifth segment of second leg with 3 articles. Legs without gills (arthrobranchs). Abdominal somite 6 without articulating posterolateral corner. Up to 2.5 cm long.

Biology

The Weed Shrimp is common but its coloration is an effective disguise. The colour varies depending upon the seaweed on which it lives; solidly bright green on green algae and deep red on red algae. They are probably algal browsers freely moving among their habitat. They usually walk on their legs but can use the strong muscular abdomen and tail fan combined to reverse the shrimp quickly out of danger. This behaviour is common to most caridean shrimps.

Habitat

Subtidal to 124 m depth.

Soft substrates

Seagrass meadows

Reefs

Distribution guide

Southern temperate oceans, including southern Australia.

Species Group

Prawns, shrimps, lobsters Shrimps

Depth

Shallow (1-30 m)
Deep ( > 30 m)

Water Column

On or near sea floor

Max Size

25 mm

Diet

Organic matter

Harmful

Small claws but unlikely to nip.

Commercial Species

No

Global Dispersal

Recorded in Australia

Species Code

MoV 1674

Conservation Status

  • DSE Advisory List : Not listed
  • 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, Weed Shrimp, Hippolyte australiensis, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 17 Aug 2017, http://portphillipmarinelife.net.au:8098/species/5514

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