. Annual report of the Regents. New York State Museum; Science. NIAGARA FALLS AND VICINITY 171 non-celluliferous side oblong, quadrangular, rarely oval; branches finely striate. Found in the Bryozoa bed of the Rochester shale at Niagara. Also in the same rock at Lockport and elsewhere (Hall). Genus semicoscinium Prout [Ety.: semi, half (somewhat like); ?/.6(;, sieve; C o s c i n - i u m , a genus of Bryozoa] (1859. St Louis acad. sci. Trans, i 443) Zoarium funnel-shaped, celluliferous on the outer side; dissepi- ments wide, very short, the branches appearing to anastomose on the non-p
. Annual report of the Regents. New York State Museum; Science. NIAGARA FALLS AND VICINITY 171 non-celluliferous side oblong, quadrangular, rarely oval; branches finely striate. Found in the Bryozoa bed of the Rochester shale at Niagara. Also in the same rock at Lockport and elsewhere (Hall). Genus semicoscinium Prout [Ety.: semi, half (somewhat like); ?/.6(;, sieve; C o s c i n - i u m , a genus of Bryozoa] (1859. St Louis acad. sci. Trans, i 443) Zoarium funnel-shaped, celluliferous on the outer side; dissepi- ments wide, very short, the branches appearing to anastomose on the non-poriferous face, where the fenestrules are subrhomboidal or rounded. Apertures in two rows, with a very high median keel, which is expanded at the summit. Semicoscinium tenuiceps (Hall) (Fig. 71, y2). Fenestella tenuiceps Hall (1852. Pal. N. Y. 2:165, pl- 4oD, fig. 2a-h) Fenestella prisca? Hall (1852. Fal. N. Y. 2 :^o, pi. 19, fig. 4a-m) Distinguishing characters. Carina sharp and thin; transverse dis- sepiments not extending as high as the branches, sometimes scarcely. Fig. 71 Senfiicoscinlum tenuiceps, Clinton. With enlargements. 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 New York State Museum; University of the State of New York. Board of Regents. Albany : J. B. Lyon, State Printer
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Keywords: ., bookauthorne, bookcentury1800, bookdecade1880, booksubjectscience
