FIGURE 18 in Shallow-water black corals (Cnidaria: Anthozoa: Hexacorallia: Antipatharia) from SW Madagascar

FIGURE 18. Cirrhipathes cf. indica Summers, 1910 (a–b) Morphological variations of the species (a—INV.131348, b—INV.131343). (c) Close-up view of the coil in the apical part of the colony INV.131343, with expanded polyps. (d) Detailed view of a growing apical part in INV.131348 where the verticillated spines are found in the bright, narrow part. (e) Detailed view of an apical part lacking the growing skeleton in INV.131343. (f) Section of a basal part in INV.131343 just above the anchorage and measuring 4.2 mm in diameter. (g) Spines of the apical part shown in e). (h) Spine found just above the basal anchorage and showing a few tubercles at the top. (i) Succession of spines near the basal anchorage, where a fully tuberculated one is seen at the top, only 1 mm above the base of the stem.