. Bulletin of the Natural Histort Museum. Geology series. BRYOZOANS FROM CHATHAM ISLAND 'Berenicea' sp. Material. NHM BZ 4774. Figs 12, 13 Description. Colony encrusting, multiserial, sheet-like, multi- layered with superimposed discoidal subcolonies; maximum colony diameter 9 mm. Distal fringe of basal lamina broad, extending well beyond budding zone. Autozooids with gently convex frontal walls; apertures longitudinally elongate, about mm long by mm wide. Gonozooids not observed. Remarks. The only specimen is poorly-preserved, with a heavily corroded colony surface. In the absence o
. Bulletin of the Natural Histort Museum. Geology series. BRYOZOANS FROM CHATHAM ISLAND 'Berenicea' sp. Material. NHM BZ 4774. Figs 12, 13 Description. Colony encrusting, multiserial, sheet-like, multi- layered with superimposed discoidal subcolonies; maximum colony diameter 9 mm. Distal fringe of basal lamina broad, extending well beyond budding zone. Autozooids with gently convex frontal walls; apertures longitudinally elongate, about mm long by mm wide. Gonozooids not observed. Remarks. The only specimen is poorly-preserved, with a heavily corroded colony surface. In the absence of gonozooids the correct genus cannot be determined, nor can any useful comparisons be made with other species having the same general morphology. The multilamellar colony appears to result from eruptive budding of new subcolonies which grew as radial discs, covering the older zooids from previous layers, and prompting comparison with such species as 'Berenicea' sowerbyi (Lonsdale) (see Pitt & Taylor 1990). Genus INCERTAE SEDIS Remarks. The Red Bluff TXiif collection contains two examples of the encrusting basal parts of erect tubuliporine species. In both. Figs 14-17 Miscellaneous cyclostomes. 14-15, Erect tubuliporine base sp. 1, NHM BZ 4775; 14, extensive, ramifying basal encrustation with broken stump of erect branch arrowed, x 13; 15, autozooids flanked by kenozooids forming branch edges, x 54. 16, Erect tubuliporine base .sp. 2, NHM BZ 4776, encrusting zooids and stump of erect branch (top), x 52. 17, ITetrocycloecia sp., NHM BZ 4778, detail of branch surface showing autozooidal and kenozooidal apertures with thick intervening walls, 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 Natural History Museum (London). Andover : Intercept
Size: 1624px × 1539px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bhlconsortium, bookc, bookcentury1900, bookcollectionbiodiversity
