Annals of the South African MuseumAnnale van die Suid-Afrikaanse Museum . ion Hydrothecae borne singly on the summit of pedicels of variable increasing in diameter from base to distal end; with thicker perisarc atthe base and thinner distally; annulated irregularly, with 2-7 distinct annulationsat base and above this smooth or with faintly corrugated areas or with groups ofannulations, distal end always smooth. Hydrotheca deep-campanulate, rounded at base, narrowed above this andwidening again at margin. A definite diaphragm present. Operculum of abouteight triangular segments c
Annals of the South African MuseumAnnale van die Suid-Afrikaanse Museum . ion Hydrothecae borne singly on the summit of pedicels of variable increasing in diameter from base to distal end; with thicker perisarc atthe base and thinner distally; annulated irregularly, with 2-7 distinct annulationsat base and above this smooth or with faintly corrugated areas or with groups ofannulations, distal end always smooth. Hydrotheca deep-campanulate, rounded at base, narrowed above this andwidening again at margin. A definite diaphragm present. Operculum of abouteight triangular segments clearly demarcated from thecal wall. Nematothecae scattered on hydrorhiza, one-chambered, obovate toglobular, sessile, containing a cluster of large nematocysts. Hydranth with 15-18 tentacles in the few extended individuals present, withno intertentacular web. Measurements (mm) Pedicel, lengthdiameter at base Hydrotheca, depthdiameter at margin Nematotheca, depth .maximum diameter. 0,14-0,710,03-0,050,20-0,330,08-0,110,04-0,050,02-0,04 ANNALS OF THE SOUTH AFRICAN MUSEUM.
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Keywords: ., bookauthorsouthafr, bookcentury1800, bookdecade1890, bookyear1898
