. Bulletin. Natural history; Natuurlijke historie. DISTRIBUTION BY HABITAT 77 Genus CORTICIUM Schmidt Corticium tetralophum n. sp, (Text-fig. 15) HoLOTYPE. YPM 5047. Maiden Cay, Aug. 12, 1961. Habitat. The single specimen was collected at Maiden Cay. Shape. A small incrustation with a maximum thickness of mm. Color. The sponge was a dull yellow in life and is a grayish-beige in alcohol. Consistency. Compressible. Surface. The thin detachable ectosome contains numerous tetraloph spicules. A few triradiates are also present. No ostia could be found. Endosome. Tetralophs and a few triradiates


. Bulletin. Natural history; Natuurlijke historie. DISTRIBUTION BY HABITAT 77 Genus CORTICIUM Schmidt Corticium tetralophum n. sp, (Text-fig. 15) HoLOTYPE. YPM 5047. Maiden Cay, Aug. 12, 1961. Habitat. The single specimen was collected at Maiden Cay. Shape. A small incrustation with a maximum thickness of mm. Color. The sponge was a dull yellow in life and is a grayish-beige in alcohol. Consistency. Compressible. Surface. The thin detachable ectosome contains numerous tetraloph spicules. A few triradiates are also present. No ostia could be found. Endosome. Tetralophs and a few triradiates are sparsely scattered in the flesh. The ovoid flagellated chambers are 35-50 jx in maximum diameter. Convoluted embryos (proper to the sponge?) are present in the specimen collected in early 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 Peabody Museum of Natural History. New Haven : The Museum


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