160 
CLASS IIL— ORDER I. 
tuse and rather flattened; the longitudinal fibres 
stronger than the transversal or diverging ones. 
Var. B. Protuberant* and nearly oval. 
Australasian seas. 
MYROBALAN. 
38. Spongia myrobolanus . Small, pediculated, 
and of an oval form, slightly compressed, more or 
less oblique ; texture fine and closely compacted. 
LION’S FOOT. 
39. Spongia pes-leonis . A very short pedicle, 
supporting an oval or round compressed mass, 
of a soft and porous texture ; the upper border oscu- 
lated. 
Southern seas. 
GOOSE-FOOT. 
40. Spongia anatipes. Wholly fibrous, greyish 
and transparent ; longitudinal fibres stronger than the 
transversal, forming an imperfect net-work with long 
meshes ; pedicule hard and porous. 
Southern seas. 
RED. 
41. Spongia rubra. Simple, tough, nearly round 
or compressed, osculated, and porous ; tubercles pro- 
jecting. 
Red Sea, near Suez. 
FLAT. 
42. Spongia plana. Extended, crustaceous, and 
fan-shaped. 
Sea of Norway. 
