. Annali del Museo civico di storia naturale Giacomo Doria. Natural history. WEST INDIAN DEMOSPONGIAE 73 was overgrown partially by Chondrilla nucula. The superficial colour of , under the sediment, was noted in life as dark yellowish or greenish, violaceous at the underside. The colour of the interior was drab, with the cortex darker. The colour of the spirit-preserved spe- cimens is cream to bujflF, with a violaceous tinge; the cortex appears lighter. The latter is clearly differentiated, 1 to 2 mm thick. The con- sistency is that of tough Fig. 7 - Stelletta pudica (Wiedenmayer
. Annali del Museo civico di storia naturale Giacomo Doria. Natural history. WEST INDIAN DEMOSPONGIAE 73 was overgrown partially by Chondrilla nucula. The superficial colour of , under the sediment, was noted in life as dark yellowish or greenish, violaceous at the underside. The colour of the interior was drab, with the cortex darker. The colour of the spirit-preserved spe- cimens is cream to bujflF, with a violaceous tinge; the cortex appears lighter. The latter is clearly differentiated, 1 to 2 mm thick. The con- sistency is that of tough Fig. 7 - Stelletta pudica (Wiedenmayer). Spicules from specimens and Scale a: 20 (xm, scale b: 40 [xm. Spicules: 1) Oxeas straight or very slightly curved, with axial canal apparent, measuring 870-1230 X 6-15 [xm. 2) Triaenes with a rhabdome about as long as the oxeas, 12-15 \xm. thick under the cladome; the latter is rudimentary. These spicules are rare, but are present in both specimens. 3) Tylasters with 4 to 8 rays, 10-17 [xm in diameter, not abundant. No triaenes have been observed by Wiedenmayer in his Jaspis pudica. Indeed, I could not find any in some sections from the paratype which I obtained through the courtesy of Dr. Ruetzler of the National Museum of Natural History. Nevertheless, I have no doubt about the conspecificity of the present material with Wiedenmayer's sponge. Pachastrissa hartmeyeri Uliczka Pachastrissa hartmeyeri Uliczka, 1929: 50 Occurrence : Punta Salinas (Dominican Republic), depth 4 m, 4 April 1964. 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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