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

(Verrill, 1871)


External appearance
Colonial, with zooids wholly immersed. Colonies consist of upright, flat-topped fleshy lobes which are up to 2 cm in height. Common test grey and semi-transparent, sides and base coated with sand.
The zooids are visible through the test of the colony (A. glabrum close-up).
Larva unknown.

Zooids coloured yellowish to orange; up to 10 mm in length; body divided into thorax, abdomen and post-abdomen. Oral siphon 6-lobed; atrial opening with languet bearing long median and small lateral processes. Branchial sac with 10-12 rows of 16-18 stigmata. Gut abdominal; stomach with continued or interrupted longitudinal folds. Gonads located in post-abdomen; with ovaries in the upper part and the male follicles forming a double row beneath them (A. glabrum zooid).

Attached to hard substrata; from low water line to about 400 metres.

Arctic-Boreal distribution.

Aplidium glabrum