The Fauna of British India, including Ceylon and Burma / edited by A.E. Shipley. Freshwater sponges, Hydroids & Polyzoa / by N. Annandale.

Date:
1911
Catalogue details

Licence: In copyright

Credit: The Fauna of British India, including Ceylon and Burma / edited by A.E. Shipley. Freshwater sponges, Hydroids & Polyzoa / by N. Annandale. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.

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    In one specimen it takes the form of an elegant cup attached, only at the base, to a slender twig. (ii.) The gemmules are covered, outside the spicules, by a thick pneumatic coat of irregular formation and with comparatively large air-spaces. (iii.) The gemmule-spicules are regularly sausage-shaped. Types in the Indian Museum. Habitat. Naukuchia Tal (alt. 4200 feet), Kumaon, W. Hima- layas (S. W. Kemp). Genus EPHYDATIA (p. 108). After Epliydatia meyeni, p. 108, add :— Epliydatia fluviatilis, ciuct. ? Ephydatia fluviatilis, Lamouroux, Encyclop. Method, ii, p. 327 (1824). Spongilla fluviatilis, Bowerbank (partim), Proc. Zool. Soc. London, 1863, p. 445, pi. xxxviii, fig. 1. Ephydatia fluviatilis, J. E. Gray {partim), Proc. Zool. Soc. London, 1867, p. 550. Meyeniafluviatilis, Carter (partim), Ami. Nat. Hist. (5) vii, p. 92, pi. vi, fig. 11 a, h (1881). Ephydatia fluviatilis, Vejdovskv, Abli. k. Bohin. Gesellscliaft M iss. xi'i, p. 24, pi. i, figs. 1, 2, 7, 10, 14, 19 (1883). Ephydatia fluviatilis, id., P. Ac. Philad. 1887, p. 178. Meyenia fluviatilis var. gracilis, Potts, ibid., p. 224. Meyenia robusta, id., ibid., p. 225, pi. ix, fig. 5. Ephydatia fluviatilis, Weltner, Arch. Naturg. Berlin, 1895 (i) p.' 122. Ephydatia robusta, Annandale, Journ. As. Soc. Bengal, 1907, p. 24, fig. 7. Ephydatia fluviatilis, Weltner, in Brauer’s Susswasserfauna Deutsch- lands xix, Susswasserschwamme, p. 185, figs. 316, 317 (1909). Ephydatia fluviatilis, Annandale, P. U. S. Mus. xxxviii, p. 649 (1910). [Many more references to this common species might be cited, but those given above will be sufficient.] This species only differs from E. meyeni in the following charac- ters :— (i.) there are no bubble-cells in the parenchyma; (ii.) there is less spongin in the skeleton, which is less compact; (iii.) the gemmule-spicules are longer, the shafts being as a rule longer than the diameter of the rotulae ;