. Annali del Museo civico di storia naturale Giacomo Doria. Natural history. WEST INDIAN DEMOSPONGIAE 119 of an extremely loose and irregular reticulation of spongin fibres variously cored by proper spicules. Foreign spicules are not present. Spicules: Styles measuring 400-550 x [zm. POECILOSCLERIDA Mycalidae Mycale laxissima (Duchassaing & Michelotti) (Fig. 39-42) Acamas laxissima Duchassaing & Michelotti, 1864: 95 not Acamasina laxissima: Laubenfels, 1936: 117 Occurrence : Port Royal (Jamaica), on submerged ruins, depth 5-10 m, 27 March 1964. The specimen is tubular
. Annali del Museo civico di storia naturale Giacomo Doria. Natural history. WEST INDIAN DEMOSPONGIAE 119 of an extremely loose and irregular reticulation of spongin fibres variously cored by proper spicules. Foreign spicules are not present. Spicules: Styles measuring 400-550 x [zm. POECILOSCLERIDA Mycalidae Mycale laxissima (Duchassaing & Michelotti) (Fig. 39-42) Acamas laxissima Duchassaing & Michelotti, 1864: 95 not Acamasina laxissima: Laubenfels, 1936: 117 Occurrence : Port Royal (Jamaica), on submerged ruins, depth 5-10 m, 27 March 1964. The specimen is tubular, 8 cm high, cm in diameter. It was violaceous in life, and gave off a large quantity of slime upon collection. Presently in formalin, it is reduced to a resilient skeleton, very pale violet; the soft part has deposited at the bottom of the jar. The main fibres, packed by the megascleres, ascending and directed toward the periphery, are up to 400 [xm thick, 3 to 4 mm apart ; they are connected by thinner secondary ones forming irregularly wide meshes. Spongin is scarce, not Fig. 39 - Mycale laxissima D. & M., specimen Scale: 2 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
