. Bulletin of the British Museum (Natural History). . Figs 27-29 Filisparsa gasteri sp. nov. Fig. 27, BM(NH) D55379, holotype; 21 A, obverse side of branch, x 25; 27B, reverse side of branch, X 23; 27C, gynozooecium, x 70. Fig. 28, BM(NH) D55381, branch obverse, x 18. Fig. 29, BM(NH) D57427, colony base; 29A, encrusting zooecia, x 24; 29B, base of erect stem, x 20. Stomatopora granulata (Milne Edwards), and therefore re- jected the genus Filisparsa. Gynozooecia have apparently not been described in F. neocomiensis, but the occurrence of ovoidal gynozooecia in F. gasteri sp. nov. (sec
. Bulletin of the British Museum (Natural History). . Figs 27-29 Filisparsa gasteri sp. nov. Fig. 27, BM(NH) D55379, holotype; 21 A, obverse side of branch, x 25; 27B, reverse side of branch, X 23; 27C, gynozooecium, x 70. Fig. 28, BM(NH) D55381, branch obverse, x 18. Fig. 29, BM(NH) D57427, colony base; 29A, encrusting zooecia, x 24; 29B, base of erect stem, x 20. Stomatopora granulata (Milne Edwards), and therefore re- jected the genus Filisparsa. Gynozooecia have apparently not been described in F. neocomiensis, but the occurrence of ovoidal gynozooecia in F. gasteri sp. nov. (sec below) and in several Upper Creta- ceous species assigned to Filisparsa by Brood (1972), implies that Filisparsa is not a stomatoporid. Brood (1972) proposed a new family, Filisparsidac, with Filisparsa as type genus. This was necessary because he did not accept the family Oncousoeciidae. The Filisparsidac is here regarded as synony- mous with the Oncousoeciidae. Hinds (1975) described the mode of growth of Filisparsa and similar genera, noting that the diagnosis of the genus is broad and Filisparsa may be polyphyietic. Range. Lower Cretaceous (Ncocomian) to Recent. Filisparsa gasteri Figs 27-29 BM(NH) DSS379. l ittle C\)xwcll Pit. Pitt Colin. Paratyi'i;s. BM(NH) (), Little C\)xvvcli Pit, Thomas Colin; D55383, Little CoxwcU Pit; , , Little Coxwell Pit, Pitt Colin; D55.\S4, D.'S.'=;, Little Coxvvcll Pit, Hlliott Colin; D55386, Little Coxwell Pit, Taylor Colin. Name. For Christopher T. A. Gaster, who presented his large collection of Cretaceous invertebrates, including many Bryozoa, to the BM(NH) in 1938 and 1950. Description. Known specimens are small, the largest observed erect branch being 4-3 mm high and 0-70 mm wide (BM(NH) D55381). Erect branches are compressed and have an obverse surface bearing autozooecial apertures in 3-4 rows, and a flat reverse surface comprising the exterior basal walls of the autozooecia (Fig. 27B
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