History of British animals - University of Guam Marine Laboratory

526 ZOOPHYTA. SPONGIAD^. Spongia.their summit ; tne surface granulated."—Mont. Wern. Mem. ii. 84. t. vii.—Deep water, Devonshire.2. S. ramosa" Palmated, and digitated round the top."— ib. 84. t. viii.-ib-3. S. conus.— " With numerous, short, flattish divarications issuing from thesides."— ib. 85. t. x— ib.4. S. lobata " With clustered, ovate divarications."— ib. 85. t. ix.—ib.5. S. " perlcmiis Form indeterminate, texture close, surface covered withobtuse papillae."—ib. 8G. ib.6. S. aurea.—" Broad, flat, and slightly divided at the top. ib—86.7. S. " riffidaWith obtuse spreading, irregular flattish divarications,arising from the same base ; usually a short stalk."—ib. 87. t. xi. f. 1, 2—ib." With a yellowish gelatinous base, supported by inter-8. S. penicellusnal spicula, and having on its surface white flexible spongy tubes."—ib. 93.t. xiii. f. 7-— ib.9. S. laevigata" Soft, compressible and elastic ; texture extremely fine,and reticulated."—ib. 95. t. xvi. f. 4—ib.10. S. ananas.— "Ovate, rugous, tubular, the summit crowned with spinessurrounding the aperture." —ib. 36. t. xvi. f. 1, 2—ib.11. S. limbata" With the fibres formed into larger and smaller circularpores, resembling lace."—ib. iii. t. xv. f. 2, 3.—ib.12. S. "fragilis Fragile, friable, coarsely reticulated ; the fibres rugose,as if covered with minute sand."— ib. 114. t. xiv. f. 1, 2—ib."13. S. plumosa Irregular, rather soft and tough when deprived of its gelatinousflesh, somewhat resembling compressed tow."— ib. 116. — ib.14. S. coriacea.—" Shape indefinite, wrinkled, and cavernous, not unlike apiece of burnt leather." —ib. 116.EXTINCT SPECIES.1. S. ramosa Thinly branched ; nearly cylindrical. — Park. Org. Rem. ii.91. t. vii. f. 12 Mant. Geol. 162. t. xv. f. 11—In Chalk.2. S. lobata.— Irregularly subcylindrical rounded lobes.—Park. Org. Rem.92. t. vii. 6.—In Clialk.3. S. Townsendi.— Cyathiform, containing a conical cavity ; substance porousbase with processes of attachment— Wiltshire, Alcyonite,; enlarged, divergingPark. Org. Rem. ii. 125. front.— Spongus Town. Mant. Geol. 164.t. xv. f. 9.— Chalk.— 4. S. hemisphwrica. Hemispherical turbinated, or subcylindrical; the superiorsurface marked with flexuous depressions ;base perforated— Spongus lab.Mant. Geol. 160. t. xv. f. 7-— In Chalk.5. S. radiatus.— Funnel-form ; externally with cylindrical, diverging, anastomosingfibres ;meshes elongated ; internally with perforated papiflas.— Ventriculitesradiatus, Mant. Geol. 168. t. x.—In Chalk.6. S. alcyonoides.— Conical or disciform ; meshes circular— Alcyonite, Park.Org. Rem. ii. 213. t. x. £ 12.—Ventriculites alcyon. Mant. Geol. 176.7. S. quadrangularis.— Inversely conical cyathiform ; quadrangular the;meshes very minute.—.Ventriculites quad. Mant. Geol. 177. t. xv. f. 6.—InChalk.