Forskal's sea roller
| Forskal's sea roller | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Forskal's sea roller ( Holothuria forskali ) |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Holothuria forskali | ||||||||||||
| Delle Chiaje , 1823 |
Forskal's sea roller ( Holothuria forskali ) occurs in the Mediterranean and the northeastern Atlantic from the coasts of Portugal to Scotland . It is often very numerous and lives on muddy or hard floors and in sea grass meadows .
features
It becomes 15 to 40 centimeters long. The cross-section of the body is almost round, the skin is thick, soft and sticky. It easily comes off the body in tatters. The basic color is brown. On the back there are numerous conical papillae that have brown or black tips. Some are outlined in white. On the underside it has three rows of tubular feet, the end caps of which are white. Their mouth tentacles end in star-shaped discs.
Forskal's sea roller feeds on organic particles and small animals of the meiofauna , which it ingests from the ground with its mouth tentacles. It has white Cuvier tubes that it easily ejects. In addition, it can, for. B. to defend against the parasitic needle fish ( Carapus acus ) expel their intestinal tract, which is newly formed within a few weeks.
literature
- Harry Erhardt, Horst Moosleitner: Mergus Sea Water Atlas, Volume 3: Wibellose Animals . Mergus-Verlag, Melle, ISBN 3-88244-103-8
- Matthias Bergbauer, Bernd Humberg: What lives in the Mediterranean? 1999, Franckh-Kosmos Verlag, ISBN 3-440-07733-0
Web links
- Holothuria forskali inthe IUCN Red List of Endangered Species 2013.2. Posted by: Mercier, A. & Hamel, J.-F., 2010. Retrieved February 12, 2014.