(iii.) The gemmule-spicules are regularly sausage-shaped.
Types in the Indian Museum.
Habitat. Naukuchia Tal (alt. 4200 feet), Kumaon, W. Himalayas (S. W. Kemp).
Genus EPHYDATIA (p. [108]).
After Ephydatia meyeni, p. 108, add:—
Ephydatia fluviatilis, auct.
? Ephydatia fluviatilis, Lamouroux, Encyclop. Méthod. ii, p. 327 (1824). Spongilla fluviatilis, Bowerbank (partim), Proc. Zool. Soc. London, 1863, p. 445, pl. xxxviii, fig. 1. Ephydatia fluviatilis, J. E. Gray (partim), Proc. Zool. Soc. London, 1867, p. 550. Meyenia fluviatilis, Carter (partim), Ann. Nat. Hist. (5) vii, p. 92, pl. vi, fig. 11 a, b (1881). Ephydatia fluviatilis, Vejdovsky, Abh. k. Böhm. Gesellschaft Wiss. xii, p. 24, pl. 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, pl. 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 Süsswasserfauna Deutschlands xix, Süsswasserschwämme, 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 characters:—
(i.) there are no bubble-cells in the parenchyma;