. College collection of palaeontology. SPONGI^. 157. No. 495. [1164. Cast]. Brachio- spongia digitata, Oweu. This large and remarkable fossil sponge, with eleven beautifully radiat- ing and recurved hollow branches, is from the Lower Silurian, Franklin Count}^ Ky. According to Mr. Beecher the num- ber of branches or arms in this species vary from 8 to 12, and the specimens range in size from 3^ to 11 inches in diameter. Size of thit, specimen, 11 x 11. No. 496. [1165, Cast]. Coeloptychium agaricoides, Coklf. These mushroom-like Sponges liave the upper surface marked by pores in trans- verse li
. College collection of palaeontology. SPONGI^. 157. No. 495. [1164. Cast]. Brachio- spongia digitata, Oweu. This large and remarkable fossil sponge, with eleven beautifully radiat- ing and recurved hollow branches, is from the Lower Silurian, Franklin Count}^ Ky. According to Mr. Beecher the num- ber of branches or arms in this species vary from 8 to 12, and the specimens range in size from 3^ to 11 inches in diameter. Size of thit, specimen, 11 x 11. No. 496. [1165, Cast]. Coeloptychium agaricoides, Coklf. These mushroom-like Sponges liave the upper surface marked by pores in trans- verse lines, and the lower one rayed. From the Chalk, Haldem, Westphalia, and now in the Ward Collection of the University of Rochester. No. 497. Cryptozoon protiferum, Hall. This sponge was long known as Stromotopora rugosa, and was assigned to the Calciferous Epoch, instead of the Potsdam as at present. Saratoga, N. Y. No. 498. Dictyophyton nodosuni, Hall. Chemung Group, Bath, Steuben County, New York. No. 499. Dictyophyton tuberosum, Hall. This interesting sponge was formerly supposed to be a plant, as the name signifies. It is the internal cast of a sponge which had a network somewhat like the living Euplectella. The genus is known by eight or ten species. In the present species (as also in D. nodosum) the body expands at intervals, and is protruded into tubercles or nodes, with a longitudinal axis and moderate elevation. From the Chemung Group (Upper De- vonian), of Steuben County, N. Y. Size, 7 x 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 Ward's Natural Science Establishment, inc. Rochester
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