. Bulletin of the British Museum (Natural History). Figs 95-96 Meliceritites cunningtoni (Gregory), secondary electron images of coated specimens. Fig. 95, BM(NH) D57703, operculate autozooecia, x 52. Fig. 96, BM(NH) D57702, oblique view of autozooecia with fractured opercula showing apparently hollow sclerites, x Fig. 97 Meliceritites transversa Canu & Bassler, USNM 69916b, paralectotype, x 17. (SEM stub), Little Coxweli Pit, Pitt Colin; D55175, D55182- 4 (samples), D55283, D57387, Little Coxweli Pit, Gaster Colin; D55185-7 (samples), D55279 (sample), D57388, Little Coxweli
. Bulletin of the British Museum (Natural History). Figs 95-96 Meliceritites cunningtoni (Gregory), secondary electron images of coated specimens. Fig. 95, BM(NH) D57703, operculate autozooecia, x 52. Fig. 96, BM(NH) D57702, oblique view of autozooecia with fractured opercula showing apparently hollow sclerites, x Fig. 97 Meliceritites transversa Canu & Bassler, USNM 69916b, paralectotype, x 17. (SEM stub), Little Coxweli Pit, Pitt Colin; D55175, D55182- 4 (samples), D55283, D57387, Little Coxweli Pit, Gaster Colin; D55185-7 (samples), D55279 (sample), D57388, Little Coxweli Pit, Thomas Colin; D55191-2, Bowler's Pit, Pitt Colin; D55276-7 (sample). Little Coxweli Pit, Curry Colin; D55278 (sample), D55286, Little Coxweli Pit, Elliott Colin; D55280, Cleevely Colin. Description. Colonies are dendroid with moderately thick (0-9-1-6 mm) vinculariiform branches (Fig. 97) which bifur- cate generally at intervals of 3-6-5 mm and sometimes abruptly become thinner following a bifurcation. Branch growth tips are rounded to conical. Overgrowths are common; some apparently arose from the colony base, but others arose on the surface of the erect branches. Overgrowths form by frontal budding (Fig. 101), successive overgrowths sometimes having their origins directly above one another. The colony base (Fig. 100) is bereniciform, gives rise to a single erect branch, and may have an occluded growth margin (Fig. lOOB) and occasional kenozooecia. Autozooecia are usually arranged in well-defined trans- verse rows, and have a subhexagonal frontal outline with the interzooecial walls standing up slightly above the level of the pseudoporous frontal wall. Autozooecia in overgrowths and on the colony base are longer and narrower than those in erect branches (compare Figs lOOA and 98). Apertures are moderately large, usually slightly broader than high, hemi- elliptical, well-rounded distally, and have a distinct, thickened apertural rim and a hinge line with two prominent tee
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