. Annali del Museo civico di storia naturale Giacomo Doria. Natural history. WEST INDIAN DEMOSPONGIAE 181 surface is conulose, the fibres protruding conspicuously from the conules. The consistency is flaccid, easy to tear. The dendritic fibres are irre- gular, 40-120 [xm in diameter, abundantly cored by foreign material. They branch and anastomose rather frequently, even forming here and there a few meshes. At their distal end, protruding from the surface, they may bifurcate, the two branches being connected by transversal fibres. The colour of the fibres is indicated by van Soest as dark purp
. Annali del Museo civico di storia naturale Giacomo Doria. Natural history. WEST INDIAN DEMOSPONGIAE 181 surface is conulose, the fibres protruding conspicuously from the conules. The consistency is flaccid, easy to tear. The dendritic fibres are irre- gular, 40-120 [xm in diameter, abundantly cored by foreign material. They branch and anastomose rather frequently, even forming here and there a few meshes. At their distal end, protruding from the surface, they may bifurcate, the two branches being connected by transversal fibres. The colour of the fibres is indicated by van Soest as dark purple ; it is pale yellow in my specimens, the same colour which is observed in the fibres of Pleraplysilla minchini and P. spinifera. DiCTYODENDRILLIDAE Igernella notabilis (Duchassaing & Michelotti) (Fig. 87) Euryades notabilis Duchassaing & Michelotti, 1864: 106 Occurrence: Duncans (Jamaica), drop-off, depth 40-45 m, 30 March 1964. NCI. La Parguera (Puerto Rico), depth 5 m, 9 May 1964. Off La Parguera (Puerto Rico), depth 35 m, 12 May 1964. Each specimen consists of several hollow cylinders about 4 cm high, 1-2 cm in diameter, partly coalescing. The colour in life was cherry-. Fig. 87 - The paralectotype of Euryades notabilis D. & M. at the Turin 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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