G. SPONGIA. 
163 
fan-shaped, more or less lobed, and covered with 
small irregular crevices. 
Southern seas. 
LATTICED. 
52. Spongia cancellaria. Pediculated, compressed, 
and fan-shaped ; ramifications incrusted, coalescent, 
and forming a sort of irregular trellis-work ; border 
stuck with points. 
LYRE-SHAPED. 
5*3. Spongia lyrata. Pediculated, upright, and 
composed of tubes united together ; texture fibrous 
and reticulated ; upper border osculated. 
DELTA-SHAPED. 
54. Spongia deltoidea . Pediculated, upright, 
flat, and rather thin; incrusted, delta or fan-shaped, 
and truncated ; small Alcyonic worms incrusted on 
each surface. 
FRYING-PAN. 
55. Spongia sartaginula. Pedicle short ; expan- 
sion in the form of a frying-pan ; surface convex and 
much osculated, and garnished with oblique tufts, in 
undulated series; texture fibrous, finely reticulated 
and incrusted. 
TAILED. 
56. Spongia appendiculata. Nearly pediculated, 
flattened and spatulated, with narrow lobes or appen- 
dages varying in length, nearly cylindrical, digitated, 
and obtuse. 
