THE ANNALS AND MAGAZINE OF NATURAL HISTOEY. [FIFTH SERIES.] No. 46. OCTOBER 1881. X.^N .-^—Contributions to our Knowledge of the Spongida^— -Order I. Carnosa. By H. J. Cartee, F.R.S. &c. In the first part of this contribution I propose to enumerate with short commentary all the species of the order Carnosa that have been made known, tabulating them afterwards as they might be arranged with reference to my Classification (No. 23*); and in the second p£trt I propose giving a descrip-* Publications to which reference is made in the following communi-cation : — â– 1. — 1838. DujARDiN, F. " Observations sur les Eponges et en particiilier sur la Spongille ou £ponge d'eau douce," Ann. d. Sc. Nat. Zool. ser. 2, tome x. 2. — 1842. Johnston, G. A History of British Sponges and Litho-phytes. 3. — 1847. Nabdo, D. " Osservazioni anatomiche sopra I'animale ma-riuo detto volgarmente Rognone di mare," Atti dell' Institute Veneto, vol. vi. 4. — 1862. Schmidt, 0. Die Spongien des adriatischen Meeres. 5. — 1864. Schmidt, O. Die Spongien &c. Erstes Supplement. 6. — 1866. BowERBANK, J. S. A Monograph of the British Spongiadse, vols. i. and ii. 7. — 1866. Schmidt, 0. Die Spongien des adriatischen Meeres. Zweites Supplement. 8. — 1867. SelEnka, E. "Ueber einige neue Schwamme aus der Siidsee,'' Zeitschrift f . wisa. Zoologie, Bd. xvii. Aim. & Mag. N. Hist. Ser. 5. Vol. viii. 17