madreporal

As the Nautilus headed for Clermont-Tonnere, one of the curious islands of the group discovered in 1822 by Captain Bell of the Minerva, I prepared to study the madreporal system that has created these particular isle.

1870, Jules Verne, Twenty Thousand Leagues Under the Sea

Liquid fuel, such as the residues of petrol, etc., is absorbed by some porous incombustible substance, such as pumicestone, tufaceous or madreporal material, or bones from which the grease, gelatine, and moisture have been removed, and the resulting product used as a substitute for coal.

1917, The Petroleum World - Volumes 14-15, page 21

Looking out to sea, the eye rests on a fringe of madreporal shelves over which the blue waves, broken farther out in a line of silvery foam, come lazily.

1926, The Philippine Journal of Science - Volume 31, page 302

Between these vascular rings there is a long muscular heart, which, united to the calcareous pouch or cord, extends from the madreporal plate to the mouth.

1874, Carl Theodor Ernst von Siebold, Anatomy of the Invertebrata

The water-vascular system communicates with the exterior by a separate canal through a single pore or a cluster of pores, the hydropore, situated in the so-called madreporal inter-radius.

1981, Pieter D. Nieuwkoop, Lien A. Sutasurya, Primordial Germ Cells in the Invertebrates, →ISBN

Dorsal view with genital plates and large, sievelike madreporal plate in the center, below which is the large, anal field (periproct), shaded dark.

1993, Otto H. Schindewolf, Wolf-Ernst Reif, Basic Questions in Paleontology