PORT PHILLIP BAY


Soft-spined Shrimp 

Palaemon dolospina Walker & Poore, 2003

View scientific description and taxonomy

Scientific Details

Carapace smooth, with distinct branchiostegal spine on carapace edge (sometimes set back) and groove usually running back from carapace edge in a shallow arc, or over spine, or, into and over but not past (P. intermedius). Mandibular palp usually of 2 or 3 articles, but may be absent. Propodus of fifth pereopod with several transverse rows of setae on distal part of the posterior margin. First pleopod of male without or with rudimentary appendix interna on endopod.

Walker, T.M. & Poore, G.C.B. (2003) Rediagnosis of Palaemon and differentiation of south-eastern Australian species (Crustacea: Decapoda: Palaemonidae). Memoirs of Museum Victoria, 60, 243-256.

Taxonomy

Phylum:
Arthropoda
Subphylum:
Crustacea
Class:
Malacostraca
Subclass:
Eumalacostraca
Superorder:
Eucarida
Order:
Decapoda
Suborder:
Pleocyemata
Infraorder:
Caridea
Family:
Palaemonidae
Genus:
Palaemon
Species:
dolospina

General Description

Rostrum with 6-9 unevenly spaced dorsal teeth, 2 posterior to orbit of the eye; 3-6 ventral teeth, usually 4. Branchiostegal spine set back from and its tip barely reaching anterior carapace edge, high on branchiostegite. Branchiostegal groove looping over spine. Fifth segment (carpus) of male second leg (pereopod 2) longer than palm (propodus proximal to finger), reaching to tip of scaphocerite. Distinct transverse red and/or occasionally olive stripes across all abdominal somites; less distinct longitudinal and oblique red stripes on carapace; antennule inner flagellum pink with few white flecks; often row of white chromatophores along lateral carina of the rostrum. Up to 1.5 cm long.

Biology

This common species is easily confused with P. intermedius. The two may co-occur on muddy sediments and in seagrasses. This species is common in bays where there is estuarine influence and salinity is low.

Habitat

Low intertidal to 3 m depth.

Soft substrates

Seagrass meadows

Reefs

Coastal shores

Distribution guide

Southern temperate oceans, including south-eastern Australia.

Species Group

Prawns, shrimps, lobsters Shrimps

Depth

Shore (0-1 m)

Water Column

On or near sea floor

Max Size

15 mm

Diet

Organic matter

Commercial Species

No

Global Dispersal

Recorded in Australia

Species Code

MoV 1594

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, Soft-spined Shrimp, Palaemon dolospina, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 23 Nov 2017, http://portphillipmarinelife.net.au:8098/species/5517

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