PORT PHILLIP BAY


Sydney Comb Shrimp 

Leptochela sydniensis Dakin & Colefax, 1940

View scientific description and taxonomy

Scientific Details

Rostrum a short anteriorly-directed prolongation of the carapace, dorsally without teeth. Ventral margin of orbit and suborbital angle unarmed. Antennal scale half as long as carapace. Mandibular palp present. Pereopods 1 and 2 similar, with long slender pectinate fingers (bearing rows of fine closely spaced spines along cutting edge). Pereopod 1 dactylus with 20-44 spines. Pereopod 4 shorter than pereopod 3, longer than pereopod 5. Abdominal somite 5 with dorsal margin convex in lateral view, unarmed; abdominal somite 6 without dorsal lobe. Telson with 1 pair of dorsolateral spines set well posterior to pair of mesial spines.

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:
Pasiphaeidae
Genus:
Leptochela
Subgenus:
Leptochela
Species:
sydniensis

General Description

Ventral margin of orbit and suborbital angle unarmed. Antennal scale half as long as carapace. First and second legs (pereopods 1-2) similar, with long slender pectinate fingers (bearing rows of fine closely spaced spines along cutting edge). Last segment (dactylus) of first leg (pereopod 1) with 20-44 spines. Abdominal somite 5 with dorsal margin convex in lateral view, unarmed; abdominal somite 6 without dorsal lobe. Tail fan (telson) with 1 pair of dorsolateral spines set well posterior to pair of mesial spines. Carapace length up to 5 mm.

Biology

The Sydney Comb Shrimp lives on the seafloor from the subtidal down to about 400 m depth and is common across the entire southern Australian coast. The family Pasiphaeidae, to which this species belongs, is noted for the opposing rows of fine spine-like teeth on the fingers of the chelipeds. These would seem to make the shrimp a fierce predator but nothing is known of its behaviour.

Habitat

Subtidal, 16-400 m depth.

Reefs

Soft substrates

Distribution guide

Indo-west Pacific, including Australia.

Species Group

Prawns, shrimps, lobsters Shrimps

Depth

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

Water Column

On or near sea floor

Max Size

5 mm

Diet

Organic matter

Commercial Species

No

Global Dispersal

Recorded in Australia

Species Code

MoV 723

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, Sydney Comb Shrimp, Leptochela sydniensis, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 23 Oct 2017, http://portphillipmarinelife.net.au:8098/species/5521

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