Mictacean (Mictocaris halope)

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Mictacean, Mictocaris halope
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Mictacean fact file

Mictacean description

KingdomAnimalia
PhylumArthropoda
ClassCrustacea
OrderMictacea
FamilyMictocarididae
GenusMictocaris (1)

This mictacean is a small, blind, unpigmented crustacean. The first thoracic segment is fused with the head, while the remaining seven are free, and there is a down-curved rostrum between the eyestalks, which lack visual elements (2).

Size
Total body length: 3 - 3.5 mm (2)
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Mictacean biology

Very little is known about the biology of this mictacean.

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Mictacean range

Recorded from the following caves in Bermuda: Crystal, Green Bay (South Harrington Sound Passage and North Shore Passage), Roadside and Tucker’s Town Caves (2).

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Mictacean habitat

Found in anchialine limestone caves. Observed generally in mid-water at depths of 0 to 20 m, only in those parts of the underwater caves well isolated from the sea and away from daylight (2).

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Mictacean status

Classified as Critically Endangered (CR) on the IUCN Red List 2006 (1).

IUCN Red List species status – Critically Endangered

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Mictacean threats

The threats to this species are unknown.

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Mictacean conservation

There are currently no conservation measures underway targeting this species.

View information on this species at the UNEP World Conservation Monitoring Centre.
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Find out more

For more information on this mictacean see:

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Authentication

This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact: arkive@wildscreen.org.uk
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Glossary

Anchialine
Coastal bodies of standing waters that have no surface connections to the ocean but display both tidal fluctuations and salinity ranges characteristic of fresh and brackish waters, indicating the presence of subsurface connections to the watertable and ocean.
Rostrum
Central, forward-projecting and occasionally long spine between the eyes of crustaceans.
Thorax
Part of the body located near the head in animals.
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References

  1. IUCN Red List (January, 2007)
    http://www.iucnredlist.org
  2. Anchialine Caves and Cave Fauna of the World (February, 2007)
    http://www.tamug.edu/cavebiology/fauna/mictaceans/M_halope.html
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Image credit

Mictacean, Mictocaris halope  
Mictacean, Mictocaris halope

© Dr. Thomas M. Iliffe

Dr. Thomas M. Iliffe
Department of Marine Biology
Texas A&M University at Galveston
5007 Ave. U
Galveston
TX
77551
United States of America
iliffe@cavebiology.com
http://www.cavebiology.com

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