Dr. J. E. Gray on Anchoring Sponges. 311 
‘ Proceedings’ and * Transactions’ of the Royal Society, under 
the name of Holtenia Carpenter’. This sponge is very like 
the one described by Dr. Leidy, but differs from it in the 
tufts of filaments surrounding the base being very much 
longer, longer than the length of the body of the sponge; and 
the upper surface of the sponge has a series of very fine spines 
round the edge of the oscule, and another, similar series on the 
upper part of the body, at some distance from the former. 
Prot. Barboza du Bocage, the Director of the Museum at 
Lisbon, obtained some specimens, from the coast of Portugal, 
of a sponge which he considered to be a globular variety of 
Holtenia Carpenteri. 
r. Kent, who went out for the purpose of dredging on the 
coast of Portugal in Mr. Marshall-Hall’s yacht ‘ Norna,’ ob- 
tained several specimens of this sponge, which he thought, 
ike M. Bocage, was the same as the one from the North Sea. 
inspecting them in company with him, however, we 
were satisfied that it was a distinct species ; and in the ‘Annals 
and Magazine of Natural History’ for August 1870, p. 182, 
Mr. Kent has described it under the name of Pheronema Grayt ; 
but one very important character he does not seem to have 
recorded (which 1s not extraordinary, as it is not distinetly 
visible in the sponge in the state m which he examined it, 
ut has become much more distinct in the specimen that 
Mr. Gerrard has prepared)—that is to say, that, instead of the 
filiform anchoring-spicules being in tufts at the hinder end of 
the body, they arise separately from all paxts of the surface of 
the body, except from a small broad nude band round the 
Prof. O. Schmidt, in the same work, describes a sponge 
of quite a different structure, but of much the same form, 
divided into several tubercles below, and probably belonging 
