Contributions to the anatomy of anthropoid apes / by Frank E. Beddard.
- Frank Evers Beddard
- Date:
- 1893
Licence: Public Domain Mark
Credit: Contributions to the anatomy of anthropoid apes / by Frank E. Beddard. Source: Wellcome Collection.
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![Species 1. Conescharellina clithridiata, n. sp. Syn. Cellepora, sp., Wetherell, 1837, Trans. Geol. Soc. ser. 2, vol. v. pi. ix. fig. 21; Busk, 1866, Geol. Mag. vol. iii. p. 301. Cellepora sp. (pumicosa?), Vine, 1890, Proc. Yorks. Geol. & Polyt. Soc. xi. p. 164. Diagnosis. Zoarivm a small, thick, globular mass ; base contracted (1 attached). Zocecia few in number and irregularly distributed and not arranged around a central cell. The apertures of the zooecia are clithridiate in shape; they are lai’ge and terminal. The zooecia are tumid and generally hexagonal in outline; the front walls are granular and steep; the zooecia are separated by deep depressions. Ocecia very large in proportion to the size of the zooecia ; globose, tumid, overhanging the aperture. Only rare zoaria show them, but then they are numerous. Distribution. London Clay: Highgate, Sydenham, &c. Type. Brit. Mus. No. B 1357 (Wetherell’s specimen, No. 69554). Dimensions. The largest zoarium is 1 mm. in diameter. Figures. PI. XXXI. fig. 10. A zoarium from the London Clay, Hampstead; Brit. Mus. No. 69554.—Fig. 11. A zoarium from Sydenham with ocecia. Affinities. A charming little figure of a specimen of this species has been given by Wetherell. The species, however, was not named and it has been missed by all subse- quent workers. His specimen is in the British Museum collection, along with a great number from the London Clay at Sydenham. This species belongs to the group of which Cellepora glohularis, Bronn [No. 2, p. 654], was the first described species; as Reuss [No. 9, pp. 113, 114] has, however, pointed out, several distinct forms have come in time to be included under this name. The specimen recently figured by Gioli [No. 1, pp. 263, 264, pi. xiv. fig. 9] appears to be quite distinct. Pergens’s short synonymy [No. 4, p. xvi] shows much discrimination. The nearest ally of this species, C. scrobiculata (Koschinsky) [No. 1, p. 63, pi. vi. figs. 2, 3], has a hemispherical or conical zoarium, the base being expanded instead of contracted as in all the English specimens ; the aperture in the Bavarian species is also circular and surrounded by a rim. The new species differs from C. multiradiata, Reuss [No. 11, p. 265, pi. xxxi. figs. 1-4, and Waters, No. 12, pp. 32, 33], as in that the zocecia are barrel-shaped, the apertures flush with the surface of the zoarium, and it is composed of several layers; the ocecia also are much larger. From the Miocene Conescharellina rosula (Reuss) [No. 1, p. 78, pi. ix. fig. 17, and Manzoni, No. 3, p. 54, pi. ii. fig. 6] the London species differs in its clithridiate aperture and the less elevated zooecia. The same characters also separate it from C. stoliczkai (Reuss) [No. 10, pp. 223-226, pi. ii. figs. 2-4]. In agreement with the zoologists I accept the name Conescharellina in preference to Reuss’s Datopora, which has been adopted by most palaeontologists. There seems little room for doubt as to the identity of the two. D’Orbigny’s genus was diagnosed](https://iiif.wellcomecollection.org/image/b28141386_0100.jp2/full/800%2C/0/default.jpg)
