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Show 526 DR. J. E. GRAY O N SPONGES. [May 9, 4. SAPLINE. Spicules of two kinds:-1. Pin-shaped, elongate, smooth. 2. Fusiform, smooth. SAPLINE GRANTII. B.M. Vioa grantii, O. Schmidt, p. 78, t. 7. f. 15. Hab. Adriatic. 5. IDOMON. Spicules of two kinds, angularly bent in the centre:-1. Pin-shaped, head small. 2. Needle-shaped, one end truncate. IDOMON ALDERI. Cliona alderi, Hancock, I. c. 6. JASPIS. Spicules of two kinds :-1. Fusiform. 2. Stellate. JASPIS JOHNSTONII. Vioa johnstonii, O. Schmidt, p. 78, t. 7. f. 17. B.M. Hab. Adriatic Sea. 7. PRONAX. Spicules of two kinds:-1. Pin-shaped, head subterminal. 2. Cylindrical, bent or sinuous, smooth or spinose. PRONAX LOBATA. Cliona lobata, Hancock, I. c. p. 239, t. 7. f. 6 (bent spicules spinose). Hab. Newcastle-ou-Tyne. See also, with bent spicules smooth- Cliona vermifera, Hancock, I. c. t. 8. f. 2. C. alderi, Hancock, p. 239. 8. SAMUS. Spicules of one kind, thick, stellate, many-rayed; rays in several series. S A M U S A N O N Y M A , Bowerb. B. S. p. 234, t. 2. f. 41, 42. See Axus clifftoni (Bowerb. B. S. f. 197) in Tethyidce. See also- Vioa duvernoyii, Duchass. Anim. Badiat. p. 27; Spong. Mer Caraibe, p. 11/, t. 25. f. 4. V. dissociata, Duchass. ib. p. 27; Sp. Mer Car. p. 117, *" t. 22. f. 5, 6" (t. 25. f. 5, 6?). V V. strombi, Duchass. Sp. Mer Car. p. 113. Also the genus Euryphylle, which perforates the substance of madrepores, forms irregular galleries with granules and spicules. |