Figure 5From: Reproductive natural history and successful juvenile propagation of the threatened Caribbean Pillar Coral Dendrogyra cylindrus Settled primary polyps of D. cylindrus . A settled primary polyp 17Â days after spawning (A) extends its characteristically large tentacles during the day, as do adults of this species. The same settler 77Â days after spawning (B) shows growth of the tentacles and skeleton. This represents the first successful settlement and survival of D. cylindrus in the laboratory. Scale bars represent 0.5Â mm.Back to article page