. Annali del Museo civico di storia naturale Giacomo Doria. Natural history. MEUITERRANIÌAX l)i;M()Sl'ONC;iAt: 539 Tremiti Islands, S. Domino, Cala Tonda, depth 2-3 m, siiperfieial ea\e, di\er, July 1966. R.\. Massa Lubrense, Cala di Mitigliano, depth 10-12 m, cave, July 1980, coll. Dr. M. Tansini. Leuca W., depth m, rocky shore, under led^e, 8 July 1967. Castro Marina, Zinzulusa Bav, depth 1-5 m, rockv shore, in ca\ities and imder ledges, 8 July 1967. , , Holotype (). msng 47172. Paratypes (). msng 47173. Descript
. Annali del Museo civico di storia naturale Giacomo Doria. Natural history. MEUITERRANIÌAX l)i;M()Sl'ONC;iAt: 539 Tremiti Islands, S. Domino, Cala Tonda, depth 2-3 m, siiperfieial ea\e, di\er, July 1966. R.\. Massa Lubrense, Cala di Mitigliano, depth 10-12 m, cave, July 1980, coll. Dr. M. Tansini. Leuca W., depth m, rocky shore, under led^e, 8 July 1967. Castro Marina, Zinzulusa Bav, depth 1-5 m, rockv shore, in ca\ities and imder ledges, 8 July 1967. , , Holotype (). msng 47172. Paratypes (). msng 47173. Description. (Figg. 53, 54) The various specimens have uniform characters: the sponge is recognizable at sight. It is mucous, cushion-shaped, with an irregularly roundish outline, with low de- pressions and elevations. The size is to 6 cm across by a thickness of to cm ( measures 4 x cm). The consistency is fleshy, moderately firm; the colour, in life and after preservation, is cream. The ectosome is not easily separable. Multiple exhalant vents are scarce and sparse. Pores, sparse or more often in clusters, are about 200 [im in diameter. The choanosomal skeleton consists of an irregular but rather dense reticulation of ill-defined spicular tracts bound by clear spongin, with meshes about 350 [ira wide. These tracts are made by the larger oxeas, one to four in front, not well aligned. Scarce smaller oxeas are scattered. The ectosomal skeleton consists of a thick layer of smaller oxeas densely set in confusion. 50 pm. Fig. 54 - Spicules of Rhaphisia spelaea sp. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Museo civico di storia naturale Giacomo Doria (Genoa, Italy). Genova : Stab. tipo-litografico P. Pellas Fu L.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectnaturalhistory, booky
