. Bulletin of the British Museum (Natural History), Geology. SYSTEMATICS OF MELICERITITID CYCLOSTOME BRYOZOANS 87. Fig. 255 Reptomultelea pegma sp. nov., VH 10430, Lower Cenomanian, Mulheim/Ruhr, Westfalia, Germany; eleozooid with broken hinge line, x 142. Westfalia, Germany. VH 10440, L. Santonian, Lengede- Broistedt, nr Braunschweig, Westfalia, Germany. I Description. Colony multilamellar, layers variable in thick- : ness from about 0-3-0-5 mm. Basal lamina often growing free of substratum, undulose, when weathered revealing septal trace pattern defining long, narrow basal outlines of zooids
. Bulletin of the British Museum (Natural History), Geology. SYSTEMATICS OF MELICERITITID CYCLOSTOME BRYOZOANS 87. Fig. 255 Reptomultelea pegma sp. nov., VH 10430, Lower Cenomanian, Mulheim/Ruhr, Westfalia, Germany; eleozooid with broken hinge line, x 142. Westfalia, Germany. VH 10440, L. Santonian, Lengede- Broistedt, nr Braunschweig, Westfalia, Germany. I Description. Colony multilamellar, layers variable in thick- : ness from about 0-3-0-5 mm. Basal lamina often growing free of substratum, undulose, when weathered revealing septal trace pattern defining long, narrow basal outlines of zooids (about 0-65 mm long by 0-07 mm wide in VH 10453). Overgrowth origins depressed (Fig. 257), sometimes closely- spaced, originating by intrazooecial fission, the parent zooid forming a central pseudoancestrula surrounded by about 6-7 buds; pseudoancestrula an autozooid or a kenozooid, com- mencing a secondary zone of astogenetic change of increasing zooid size. Organization fixed-walled. Zooidal apertures irregularly arranged, especially close to overgrowth origins and anastomoses. Autozooids (Figs 256, 260) small, frontally elongate, about \ twice as long as wide, usually subhexagonal or subrhomboidal in outline, well-rounded distally; frontal wall almost flat, pseudopores subcircular; boundary wall salient. Aperture (Fig. 259) of small size, longitudinally elongate, on average about 1-25 x longer than wide, attaining maximum width between the hinge line and mid-length, well-rounded distally; apertural rim slightly raised; apertural shelf narrow, tapering proximally; hinge line bowed with a short median ridge between hinge teeth. Operculum (Fig. 258) often preserved in-situ, convex; pseudopores numbering about 14, circular or a lttle elongated radially, arranged in a crescent. Terminal diaphragms occasionally present (SEM-studied examples poorly-preserved). Intramural buds not observed. Kenozooids (Figs 256, 260) abundant, scattered among the autozooids and eleozooids mostly in
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