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Irus reflexus Twisted venus

Irus reflexus is commonly referred to as Twisted venus. Difficulty in the aquarium: There are no reports available yet that this animal has already been kept in captivity successfully. Toxicity: Toxic hazard unknown.

Profilbild Urheber Javier Couper (Predomalpha), New Zealand

Foto: Long Bay marine reserve, North Shore, Auckland, Neuseeland


Courtesy of the author Javier Couper (Predomalpha), New Zealand Photo taken by Javier Couper. Please visit www.inaturalist.org for more information.

Uploaded by AndiV.

Image detail

Profile

lexID:
15062 
AphiaID:
507714 
Scientific:
Irus reflexus 
German:
Venusmuschel 
English:
Twisted Venus 
Category:
Bivalves 
Family tree:
Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family) > Irus (Genus) > reflexus (Species) 
Initial determination:
(Gray, ), 1843 
Occurrence:
Chatham Islands, Endemic species, New Zealand 
Marine Zone:
Subtidal, sublittoral, infralittoral, deep zone of the oceans from the lower limit of the intertidal zone (intertidal) to the shelf edge at about 200 m water depth. neritic. 
Sea depth:
Meter 
Habitats:
Intertidal zone, Tidal Zone, Tide pools / rock pools 
Size:
3,1 cm 
Temperature:
14,6 °F - 21,2 °F (14,6°C - 21,2°C) 
Food:
Filter feeder, Phytoplankton 
Difficulty:
There are no reports available yet that this animal has already been kept in captivity successfully 
Offspring:
Not available as offspring 
Toxicity:
Toxic hazard unknown 
CITES:
Not evaluated 
Red List:
Not evaluated (NE) 
Related species at
Catalog of Life:
  • Irus carditoides
  • Irus crenatus
  • Irus cumingii
  • Irus elegans
  • Irus exoticus
  • Irus interstriatus
  • Irus irus
  • Irus ishibashianus
  • Irus mitis
  • Irus reflexus
    Venusmuschel
 
Author:
Publisher:
Meerwasser-Lexikon.de
Created:
Last edit:
2022-08-03 16:22:11 

Info

Irus reflexus resides in holes in soft rock, which give the snail additional protection against predators.
The mollusks Onchidella nigricans and Zelithophaga truncata also use the empty burrows of Irus reflexus.

The embryos of Irus reflexus develop into free-swimming trocophore larvae, which were followed by bivalve veligers resembling a miniature clam.

Synonyms:
Irus (Notirus) reflexus (Gray, 1843)
Venerupis reflexa Gray, 1843
Venerupis siliqua Deshayes, 1854
Venerupis tumida G. B. Sowerby II, 1854

External links

  1. Flickr Homepage Predomalpha (en). Abgerufen am 02.08.2022.
  2. New Zealand Mollusca (en). Abgerufen am 02.08.2022.
  3. World Register of Marine Species (WoRMS) (en). Abgerufen am 02.08.2022.

Pictures

Commonly

Foto: Whau River, New Lynn, Auckland, Neuseeland
Foto: Long Bay marine reserve, North Shore, Auckland, Neuseeland

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