44 SPONGES 
bottom, it appears never to recover from the shock, at least those which I have 
so removed and placed directly in pure sea waters never expanded, but died 
in a few days in a contracted state. 
Most Horny Sponges grow firmly attached toa rock or other hard base, 
but an exception to this rule may be foundin the Black Goat Sponge, a spec- 
ies which I have found growing on mud banks in Nassau Harbor, and on a 
bank east of the Current Settlement, Eleuthera. This species has the base 
a 
Filamentous Sponge A, ter- 
mination: B, secticn. 
Creeping Sponge. 
simply embedded in the sandy mud, from which it can be removed without 
any great effort. 
Some sponges are very local in distribution. In this eonnection may be 
mentioned Maynard’s Sponge ( Stelospongos maynardi ) described by Prof. A 
Hyatt in 1876, from a single specimen which I obtained at Key West in 1870 
