Annals of the South African MuseumAnnale van die Suid-Afrikaanse Museum . Fig. 24. Alcyonium variabile (Thomson, 1921). A. Entire colony, 40 mm length. B. Single polyp, 12 mm length. C. Sclerites from the capitulum. D. Sclerites from the stalk. E. Sclerites from the anthocodia. C-E. Scale bar = 0,2 mm. SOFT CORALS OF SOUTHERN AFRICA 297. Fig. 25. Scanning electron micrographs. A-E. Alcyonium variabile (Thomson, 1921); scleritesfrom surface of capitulum. A. 0,066 mm. B. 0,055 mm. C 0,072 mm. D. 0,096 0,115 mm. F-I. Alcyonium wilsoni, coenenchymal sclerites. F. 0,21 mm. G. mm. H. 0,15
Annals of the South African MuseumAnnale van die Suid-Afrikaanse Museum . Fig. 24. Alcyonium variabile (Thomson, 1921). A. Entire colony, 40 mm length. B. Single polyp, 12 mm length. C. Sclerites from the capitulum. D. Sclerites from the stalk. E. Sclerites from the anthocodia. C-E. Scale bar = 0,2 mm. SOFT CORALS OF SOUTHERN AFRICA 297. Fig. 25. Scanning electron micrographs. A-E. Alcyonium variabile (Thomson, 1921); scleritesfrom surface of capitulum. A. 0,066 mm. B. 0,055 mm. C 0,072 mm. D. 0,096 0,115 mm. F-I. Alcyonium wilsoni, coenenchymal sclerites. F. 0,21 mm. G. mm. H. 0,15 mm. I. 0,23 mm. 298 ANNALS OF THE SOUTH AFRICAN MUSEUM Description Colonies examined are 20-50 mm in length. Colony mushroom-shaped,unbranched, capitate; a spherical capitulum arises from a conspicuous covering entire surface of capitulum. Stalk and capitulum stronglydelineated. Polyps completely retractile into capitulum. Polyps with proximalregion strongly impregnated with sclerites forming a calyx-like base. Scleritesdense and varied. Polyps with crown and points in neck region, slender spindlesand rods in tentacles, capstans in calyx, tuberculate spindles, clubs, and capstansin coenenchyme of capitulum and stalk. Colour highly variable: red, red-purple,orange, yellow, pink, white, grey or various combinations of
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Keywords: ., bookauthorsouthafr, bookcentury1800, bookdecade1890, bookyear1898
