Keywords: Plate XIII - Report on certain Hydroid, Alcyonarian, and Madreporarian Corals procured during the Voyage of H.M.S -ext7.png Shows the appearance presented under transmitted light by a thin horizontal section of the cnosteum of a species of Millepora from Samboangan Philippines in which the pores and canal-systems have become filled with opaque matter The black streaks thus shown represent the ramifications of the canals of the cnosarc within the tortuous canals in the substance of the coenostuem and show their anastomoses with the pore cavities 2012-04-13 File Plate XIII - Report on certain Hydroid Alcyonarian and Madreporarian Corals procured during the Voyage of H M S Challenger jpg Creator Henry Nottidge Moseley Atelier graphique Custom license marker 2012 04 13 PD-Challenger Report Uploaded with UploadWizard Henry Nottidge Moseley Millepora |