164 
CLASS III.— ORDER I f 
SECTION IV. 
Masses concave, vase , crater, or funnel-shaped . 
ORDINARY. 
57. S pong i A usitatissima. Tough, soft, downy, and 
very porous ; oscules disposed in rayed ranges on 
the sides of the cavity. 
Var. B. Larger and crater-formed ; the ranges of 
oscules running into furrows. 
Var. C. Appendages in the form of lobes, both 
inside and outside. 
American seas. 
N. B. Employed for domestic uses. 
TUBULIFEROUS. 
58. Spongia tuhulifera . Sessile, soft, and very 
porous, extending at the sides in angular and pro- 
jecting lobes, which are tubulous and disposed like 
stars. 
Supposed to originate in the American seas. 
STARRY. 
59. Spongia stellifera. Large, and formed like a 
deep crater ; soft, rather thin, and very porous ; the 
interior osculated ; oscules star-shaped. 
Var. B. Very large, in form resembling an ear. 
Probably America. 
STRIATED. 
60. Spongia striata . Funnel-shaped, slightly 
