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
Distribution map
Links to other Web sites

(Forskål, 1775)

Massive; with central mound bearing 10-50 large irregular warts, surrounded by a moat; only peripheral region of bell flexing. Disc wider than high, to ca. 50 cm; varied in shape from filamentous to thick, in some specimens angular, projections, pointed to rounded; peripheral flexible skirt region without marks, grooved radially. Marginal lappets 50-70, rounded, clefts between shallow, forming crenate edge; rhopalia 8, set in from margin. Mouth-arms 4, each forking basally making 8 main groups of branches; much branched, extending slightly beyond disc margin; mouthlets numerous, 10-50 short clubs and long filaments between the branches, filaments up to 2-3 times disc diameter. Radial canals 32 (8 main plus 8 groups of 3), joined peripherally by anastomosing network; no ring canal.
Coloration: exumbrella blue through lilac to mauve, translucent peripherally; mouth-arms brown, short clubs white, filaments colorless. Variation: proportional extent of central exumbrellar region, and shape, size and number of the warts, greatly varied. Related Cotylorhiza (Mediterranean; ? Canaries, possibly Africa south of the equator) lacks exumbrellar projections, dominant coloration yellow.

(After Mayer, 1910; P.F.S. Cornelius, pers. obs.).

Cephea cephea