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 0.15 mm long by 0.09 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 
9 
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 Tuff 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, ?Tetrocycloecia sp., NHM BZ 4778, detail of branch surface showing autozooidal and 
kenozooidal apertures with thick intervening walls, x 170. 
