Home|Search|Identify|Taxonomic tree|Quiz|About this site|Feedback
Developed by ETI BioInformatics
Characteristics, distribution and ecology
Taxonomische classification
Synonyms and common names
Literature references
Images, audio and video
Links to other Web sites

(Grube, 1860)

Prostomium with three lobes, two glandular ridges and two small eyespots. Gills in two groups separated at the middorsum by a distance of about two gill bases; the four gills of each group with their bases fused.
Segment 3 with 20-35 long, weakly bent chaetae. Sixteen thoracic segments with notopodia with capillary chaetae, the posterior 13 also with neuropodia with uncini.
Abdomen with 15-30 uncinigerous segments, some with rudimentary notopodia with small dorsal cirri. Thoracic uncini with one row of 5-6 teeth, abdominal uncini with two rows of 4-6 teeth.
Pygidium with 3-6 small papillae.

Up to 33 mm for 43 chaetigers.

Cylindrical, with sand and detritus; over 60 mm long and 3 mm wide.

Living animal green.

Fresh and brackish water.

Black Sea, Caspian Sea, rivers Wolga, Dnjepr, Bug, Djnestr, Donau and Rhine.

Hypania invalida