ZOOPH Y T A. SPONGI ADiE . 
526 
Spongia. 
their Summit ; tne surface granulated.” — Mont. Wern. Mem. ii. 84. t. vii.— 
Deep water, Devonshire. 
2. S. mmosa — “ Palmated, and digitated round the top.” — ib. 84. t. viii—ib* 
3. S. conus.’’—^^ With numerous, short, flattish divarications issuing from the 
sides.” — ^ib. 85. t. x. — ib. 
4. S. /oicrto.— With clustered, ovate divarications.” — ib. 85. t. ix. — ib. 
5. S. pericsvis . — “ Form indeterminate, texture close, surface covered with 
obtuse papillae.”— ib. 86. ib. 
6. S. aurea.—'-'- Broad, flat, and slightly divided at the top. ib. — 86. 
7. S. rigida.—~^^ With obtuse spreading, irregular flattish divarications, 
arising from the same base ; usually a short stalk.” — ib. 87* t. xi. f. 1, 2 ib. 
8. S. penicellus..-J-‘ With a yellowish gelatinous base, supported by inter- 
nal spicula, and having on its surface white flexible spongy tubes.” — ^ib. 93. 
t. xiii. f. 7— ib. 
9. S. IcBvigata “ Soft, compressible and elastic ; texture extremely fine, 
ancFreticulated.” — ib. 95. t. xvi. f. 4.— ib. 
1 0. S. ananas. — “ Ovate, rugous, tubular, the summit crowned with spines 
surrounding the aperture.” — ib. 36. t. xvi. f. 1, 2 ib. 
11. S. limhata. — “ With the fibres formed into larger and smaller circular 
pores, resembling lace.” — ib. iii. t. xv. f. 2, 3 ib. 
12. ^.fragilis. — “Fragile, friable, coarsely reticulated ; the fibres rugose, 
as if covered with minute sand.” — ib. 114. t. xiv. f. 1, 2 — ib. 
13. S. _p/wmosa— “ Irregular, rather soft and tough when deprived of its ge- 
latinous flesh, somewhat resembling compressed tow.” — ib. 116. — ib. 
14. S. coriacea — “ Shape’ indefinite, wrinkled, and cavernous, not unlike a 
piece of burnt leather.” — ^ib. 116. 
EXTINCT SPECIES. 
1. S. ramosa.- — Thinly branched ; nearly cylindrical.— ParA:. Org. Bern. ii. 
91. t. vii. f. \2.~^Mant. Geol. 162. t. xv. f. 11. — In Chalk. 
2. S. hhata. — Irregularly subcylindrical rounded lobes. — Park. Org. Rem. 
92. t. vii. 6. — In Chalk. 
3. S. Townsendi. — Cyathiform, containing a conical cavity ; substance po- 
rous; base enlarged, with diverging processes of attachment— Wiltshire, Al- 
cyonite. Park. Org. Rem. ii. 125, front. — Spongus Town. Mant. Geol. 164. 
t. XV. f. 9. — Chalk. 
4. S. hemisphoerica. — Hemispherical turbinated, or subcylindrical ; the supe- 
rior surface marked with flexuous depressions ; base perforated.— Spongus lab. 
Mant. Geol. 160. t. xv. f. 7-— In Chalk. 
5. S. Funnel-form ; externally with cylindrical, diverging, anas- 
tomosing fibres ; meshes elongated ; internally with perforated papillae. — Ven- 
triculites radiatus, Mant. Geol. 168. t. x — In Chalk. 
6. S. alcymoides. — Conical or disciform ; meshes circular— Alcyonite, Park. 
Org. Rem. ii. 213. t. x. f. 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.— In 
Chalk. 
