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Show 186/.] DR. J. E. GRAY ON SPONGES. 541 I. Sponge subgiobose, with tricurvate internal, spicules supporting the outer surface. * Sponge with stellate spicules on the skin or sarcode. 1. DONATIA (part.), Nardo, Isis, 1833, p. 522. Sponge fleshy, subgiobose, warty. Spicules of three kinds: - 1. Stellate. 2. Subulate or fusiform, simple. 3. Club-shaped; club conical, truncated, with a conical process on one of the sides. Tethya, Schmidt, Suppl. p. 43. DONATIA AURANTIUM, Nardo, Isis, 1833, p. 522. B.M. Alcyonium aurantium, Pallas ; Esper, t. 19. f. 4-8. A. lyncurium, Gmelin, S. N . p. 1295. Spongia verrucosa, Mont. W . Tr. ii. p. 117, t. 13. f. 45. Tethea lyncurium, Lamk. A. s. V. ii. p. 592; Blainv. M . A. p. 544, t. 91. f. 3?; Johnst. B. Sp. p. 85, f. 13; Bowerb. B. S. ii. p. 92, f. 342 ; O. Schmidt, S. A. p.44, t.4. f. 1-9 ; Suppl. ii. 1.1. f. 15. Tethya verrucosa, Gray, B. P. i. p. 362. T. spheerica, Fleming, B. A. p. 520. Hab. Coast of England. See also- Tetheya lacunosa, Lamk., Schw. Beob. t. 2. f. 17, 18. Tetheum pulvinatum, Blainv. Man. d'Actinol. p. 544. Tethia cavernosa, Lamk. Ann. du Mus. i. p. 71. Tethya aspestella, Lamk. Ann. du Mus. i. p. 71. Tethya hispida, Bowerb. Canadian Naturalist, p. 304. Tethia globosa, Duchass. & Michelot. Sp. Carai'be, p. 104. Guadeloupe. 2. COLLINRSIA. Sponge massive, depressed, uneven, rugged. Spicules : - 1 . Fusiform. 2. Stellate (attenuato- and cylindrico-stellate). 3. Fusiform, ternate, recurved at the tips. 1. COLLINGSIA SARNIENSIS. Tethea collingsii, Bowerb. B. S. p. 87, f. 48. 2. COLLINGSIA SCHM1DTII. Tethea schmidtii, Bowerb. ib. p. 89. 3. THENEA. Sponge massive. Spicules:-1. Simple, not protruded beyond the surface. 2. Large, furcate, ternate, with expanded long acute rays. 3. Elongate, stellate, projecting beyond the outer surface. THENEA MURICATA. Tethea muricata, Bowerb. ib. i. pp. 25, 108, f. 35, 304, 305. Hab. Norway, Vigten Island. |