Annals of the South African MuseumAnnale van die Suid-Afrikaanse Museum . Fig. 18. Alcyoniwn moriferum (Tixier-Durivault, 1954). A. Entire colony with anthocodiae retracted into basal portions of polyps; total colony length 15 mm. B. Entire colony with polyps completely retracted into polyparium; total length of colony 20 mm. C. Coenenchymal sclerites; scale bar = 0,1 mm. 288 ANNALS OF THE SOUTH AFRICAN MUSEUM ~cC<\\ i;-:-:;V-v^;.;.A^. Fig. 19. Alcyonium mutabiliforme Williams, 1988. A. Entire colony, contracted, preserved, 12 mm in height. B. Single polyp showing placement of sclerit
Annals of the South African MuseumAnnale van die Suid-Afrikaanse Museum . Fig. 18. Alcyoniwn moriferum (Tixier-Durivault, 1954). A. Entire colony with anthocodiae retracted into basal portions of polyps; total colony length 15 mm. B. Entire colony with polyps completely retracted into polyparium; total length of colony 20 mm. C. Coenenchymal sclerites; scale bar = 0,1 mm. 288 ANNALS OF THE SOUTH AFRICAN MUSEUM ~cC<\\ i;-:-:;V-v^;.;.A^. Fig. 19. Alcyonium mutabiliforme Williams, 1988. A. Entire colony, contracted, preserved, 12 mm in height. B. Single polyp showing placement of sclerites, length of polyp 1,5 mm. C. Entire colony, expanded in life, 25 mm in height. D. Polyp sclerites; scale bar = 0,2 mm. SOFT CORALS OF SOUTHERN AFRICA 289 surrounding polyps; usually sparsely scattered. Colour of colonies rust-orange inlife, reddish-brown in alcohol. Distribution Presently known only from the Atlantic coast of the Cape of Good HopePeninsula, 15-21 m depth (Williams 1988, in press a). Remarks See Williams (1988) for a discussion of material identified by Thomson(1921) as Metalcyonium molle Burchardt, 1903. Alcyonium mutabiliforme differs from other southern African species in thegenus by having only a few thin rod-like sclerites restricted to the regions of theanthocodiae. Alcyonium planiceps Williams, 1986a Figs IF, 20E-J, 21 Alcyonium planiceps Williams, 1986a: 53-63, figs 1-7. Material SAM-H3280, off Llandudno, Atlan
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