Orbinia latreillii
| Orbinia latreillii | ||||||||||||
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| Scientific name | ||||||||||||
| Orbinia latreillii | ||||||||||||
| ( Audouin & Milne-Edwards , 1833) |
Orbinia latreillii is a marine annelid worm from the genus Orbinia within the multi - bristle family of Orbiniidae .
features
Orbinia latreillii has a body up to 40 cm long with up to 400 segments . The prostomium is shaped like a truncated cone. The thorax comprises 30 to 34 bristle-bearing segments. Each of the notopodia sitting on these has a bundle of capillary-like bristles and behind it a single lobe and an acicula, while the associated neuropodia are designed as tori with usually 3 to 4 rows of large, yellow, curved, strong bristles. Up to the 40th to 43rd segment, the neuropodia have 12 to 25 conical papillae behind the bristles. Under the parapodia there are 25 to 30 papillae on the ventral side of the segments, beginning with the 22nd and ending with the 42nd to 55th, and from the 25th to the 36th they touch in the middle of the ventral side, but there are no spines . Each notopodium on the segments of the abdomen has capillary-like and 4 to 5 bifurcated bristles and, behind it, a simple lobe and aciculae, the associated bilobed neuropodium has two aciculae, a few capillary-like bristles and a ventral cirrus . The interramal cirrus is about as long as the neuropodium. There are gills on every segment from the fifth to sixth bristle-bearing segment . The pygidium carries two long cirrus. The thorax is pink to flesh-colored, the abdomen yellowish.
Distribution, habitat and way of life
Orbinia latreillii is common in the northeastern Atlantic Ocean , Mediterranean , Black Sea, and the North Sea .
There are no publications on the way of life and the development cycle of Orbinia latreillii . Other representatives of the Orbiniidae eat substrate or graze bacteria directly from the substrate and develop through free-swimming larvae.
literature
- PJ Hayward, JS Ryland: Handbook of the Marine Fauna of North-West Europe. Oxford University Press, Oxford 1995. p. 213.
Web links
- MJ de Kluijver et al .: Orbinia latreillii (Audouin & Milne-Edwards, 1833). Macrobenthos of the North Sea - Polychaeta, Marine Species Identification Portal