black sea red data book - Department of Biology

Synonyms: None.
Common names: None.
Ophelia bicornis (Savigny, 1820)
Order DRILOMORPHA.
Family OPHELIIDAE.
Taxonomic description. Prostomium small, conical. Anterior part of body
expanded. Abdomen with a ventral groove, beginning on tenth segment; composed of
32 segments. Tenth anterior and seventh posterior segment without branchiae. Last
segments with long setae. Two big anal papillae and 10-15 of smaller size. :Length:
30-45 mm.
IUCN Status
World level:
Black Sea Regional level: EN
Subregion level: EN (Ukrainian sector)
Distribution. Sandy bottom shallow water areas. A boreal form, inhabiting the
Black Sea, English Channel, North Sea, and Chesapeake Bay.
Habitat type, Critical habitats, Limiting factors. In the sandy bottom medio-
littoral. Limiting factors are the pollution of the sand at the sea's edge, man-made
changes in the granulometric composition of the sand, and trampling.
295