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Show 1867.] DR. J. E. GRAY ON SPONGES. 507 with stellate spicules on the dermal surface. The stellate spicules three-rayed ; the rays forked and reforked.-Bowerbank, B. Sp. f. 53. MACANDREWIA AZORICA, Gray, P. Z. S. 1859, p. 438, Rad. pl. xv. B.M. MacAndrewsia azorica, Bowerb. B. Sp. p. 204, t. 15. f. 274 (skeleton). Dactylocalyx bowerbankii, Johnson, P. Z. S. p. 18G ; Bowerb. B. Sp. f. 53. B.M. Dactylocalix bowerbankii, Bowerb. B. Sp. p. 236. f. 53. Hab. Azores: St. Michael (MacAndrew) ; Madeira (Johnson). The specimen which Mr. J. Yate Johnson has described under the name of D. bowerbankii is larger, more orbicular, and expanded than the one I described years before as MacAndrewia azorica; but I cannot see any other difference. ** Network symmetrical. 4. FARREA, Bowerb. B. Sp. i. p. 204, ii. p. 12. Skeleton reticulate, symmetrical ; filaments regular, with a continuous central canal and conical grauulated tubercles on each side of the intersections. Sarcode with many fusiform and slender bihamate scattered spicules. FARREA ORCA, Bowerb. B. Sp. i. p. 201, ii. p. 12. f. 114, 199, 200, 277, 311 (skeletons and sponges); Owen, Trans. Linn. Soc. xxii. t. 21. f. 8,9. LLab. Seychelle Islands (Mus. Dr. Farre). Fam. 2. APHROCALLISTID^:. Sponge tubular ; tubes closed with a reticulated lid ; parietes formed of agglutinated siliceous spicula, with round horizontal lateral pores ; inner surface strengthened with clustered longitudinal bundles of elongated spicula. This family is intermediate between Dactylocalycidce and Euplec-telladce ; it has the distinct agglutinated netted spicula of the former lined within by the bundle of elongated spicula of the latter. APHROCALLISTES, Gray, P. Z. S. 1858, p. 114. Sponge tubular, closed with a lid, with smaller lateral tubular branches, which are generally open at the end. In the description of this sponge in the ' Proceedings of the Society ' above referred to, it is said by a slip of the pen to be calcareous, when it ought to have been siliceous. In all other respects I have nothing to add to the description. APHROCALLISTES BEATRIX, Gray, P. Z. S. 1858, p. 114, Rad. pl. XI. Hab. Malacca (Belcher). B.M. |