OCR Text |
Show 1882.] CORALS FROM MADEIRA. 219 are , the costal ornamentation and distribution, the large interseptal loculi, the small columella, and the very marked curved ridges on the sides of the septal laminae. Family OCULINIDA. Subfamily Stylophorina. Genus MADRACIS. M A D R A C I S ASPERULA, Milne-Edwards and Jules Haime, 1850. This well-known Madeiran coral is in the collection; and the speciman shows calices with eight, nine, and ten septa. The range of the species is considerable; for it was found by Pourtales on the other side of the Atlantic. Subfamily Oculinacea. Genus A M P H I H E L I A , Milne-Edwards and Jules Haime, 1849. A M P H I H E L I A OCULATA, Linn. sp. A small fragment of this coral was found with one of a variety of AMPHIHELIA RAMEA, Sars. Family ASTR^IDA Subfamily Cladocoracece. Genus CLADOCORA, Ehrenberg, 1834. CLADOCORA DEBILIS, Milne-Edwards and Jules Haime, 1849. Specimens of this common Madeiran coral were sent by Mr. Johnson, and do not present any new points of interest. Section PERFORATA. Family MADREPORIDJE. Subfamily Eupsammina. Genus BALANOPHYLLIA, Searles Wood. BALANOPHYLLIA BREVIS, sp. nov. (Plate VIII. figs. 9-12.) The corallum is short, compressed in the direction of its length somewhat, with an elliptical deep calice, abroad, flat, attached base, and a small, very deeply-seated, elongate trabecular columella, flat on its surface, and united to the septa by six small processes. Tne epitheca is dense, reaches close up to the calicular margin, and ends there in a definite linear ridge. The septa are in six systems; and in four of them there are five cycles, whilst in the others there are three cycles and one half of the fourth, the septa of the higher order being developed between the primary and tertiary septa only. The lamina? are stout, very granular, and subspmulose, and more ragged, even on the edges, curved above, where they occupy much space on the edge of the calice, and dipping down suddenly on all sides of the large, elongate, and deep axial space. The septa are very |