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Pl.cell.aph. 2.THALASSI0PHYTiE. 57. Spong. 361
^ jelly.
11. Spongia plumosa. Feathery sponge.
Thalius irregular, rather soft, tough when deprived of its
Spongia plumosa, Montague Wern. Tr. 2, 116.
Sea-shores.
Thalius 3 inches high, 2 inches Isroad, paler than common
sponge, not so compressible or elastic, resembles compressed
tow.
d. Thalius sessile, simple, irregular, creeping ou other lodies.
12. Spongia coriacea. Leathery sponge.
Thalius indefinite, wrinkled, cavernous.
Spongia coriacea, Montague JVern. Tr. 2, 116.
Thalius 4 inches long, 2 broad, not unlike a piece of
burnt leather.
13. Spongia iomentosa. _ Clothlike sponge.
Thalius irregular, soft, brittle, full of pores, interwoven
with minute spines.
Alcyonium ramosum inolle, medullae panis intiis simile, Raii Syn,3\, 1.
Sponf!;ia tomentnsa, Lin. Synl. Nat. I, 1299.
Spongia urens, Ellis Zoop/i. 187.
Spongia panicea, Pall'as Zoop/i. 308.
Sponge like crumb of bread, I'>His Coiall. 80.
Sea-shores and adhering to fuci.
Thalius orange-colour, soft ; when dry white, extremely
light, and brittle; when broken resembles crumb of bread,
and causes a stinging pain like cowage.
14. Sponoia suherosa. ' Corkij sponge.
Thalius crustaceous, compact, tough, without visible
pores externally.
Spongia suberosa, Montague Wern. I'r. 2, 100.
On old univalve shells, covering them and filling up the
aperture.
Thalius indefinite, orauffe-brown turning; brown when
dry.
XXXIII. 58. TETHYA. Lamarck. Tethya.
Thalius tubercular, orbicular, inside fibrous ; Jiires in
bundles, stiffj asbestine, radiating from the centre to the
circumference, scarcely gelatinous.