Description: Español: Madracis myriaster, a 150 m de profundidad, en Roatan, Honduras. Los puntos láser en la parte inferior derecha marcan 10 cm. Date: 5 January 2012. Source: https://www.flickr.com/photos/40322276@N04/6641343185/. Author: NOAA.
Description: English: Madracis auretenra (Yellow Pencil Coral). Usually found in spherical mounds, this one was broken revealing the hard growth at the bottom made by the live polyps seen higher up. Date: 2 October 2010. Source: Own work. Author: Nhobgood Nick Hobgood. Camera location19° 47′ 32.1″ N, 72° 19′ 15.56″ WView all coordinates using: OpenStreetMap 19.792250; -72.320989.
Description: English: a closeup photo of Madracis auretenra showing the polyps. photographed in Bonaire at the Tolo dive site. Date: 21 March 2017. Source: Own work. Author: Jessica Rosenkrantz.
Description: English: ((a) and (b)) Growth forms of the scleractinian coral Madracis mirabilis ((a) a low-flow morphology and (b) a growth form from a more exposed location). ((c) and (d)) The sponge Haliclona oculata ((c) a typical thin-branching form and (d) a high-flow morphology). Date: 17 January 2013. Source: Jaap A. Kaandorp. "Macroscopic Modelling of Environmental Influence on Growth and Form of Sponges and Corals Using the Accretive Growth Model ", ISRN Biomathematics doi:10.1155/2013/159170. Author: Jaap A. Kaandorp. Permission(Reusing this file): https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.