258 THE CANADIAN NATURALIST. [Vol. vii. 



FORAJMIMFERA. — Mnrgimdiiid ffp'Uiosa ,M. S.-ir8; n Inrse Tri- 

 locuJfna allied to j\ fj {carina fa. perhaps T. rri/]>fcU(i D"Orb. ; 

 curious arenaceous forms, new to me, some of wliich are simple 

 and unbranched, others widely triradiate, while a third series is 

 irrep;ularly cruciform, and even five and six rayed. The}' are 

 all, most likely, forms of jne species ; but whether they are the 

 Asferorhi za limrcola 0^ ^undnhl or not, I have at present no 

 means of ascertaining. 



Sponges. — One specimen of Trichoffemma Itprnhphariciim 

 M. Sars; one of Cladorhiza ahi/ssicola M. Sars ; and about a 

 dozen of the Ili/alonema lovgissimum^ of the same author, were 

 taken in 220 fathoms. With these occurred another species, 

 TS'hicli is either a true Tethea, or belongs to a closely allied genus. 

 In shape it is more or less pyriform, somewhat triangular in sec- 

 tion, and with a flattened base. There are three orifices, corres- 

 ponding to the three angles, of which two are basal. These are 

 connected on two sides by a perforated canal or tube. The front 

 basal orifice is partly closed by an outer fine open network and 

 an inner and coarser one of siliceous spicules, the latter not very 

 unlike those at the apex of Evplectella ; and this opening seems 

 to be the point of attachment to small stones, etc. The whole 

 sponge is densely hispid with projecting spicules, which are some- 

 times of considerable length. These are mostly very attenuate; 

 some of them are simple, and these are either straight or flexu- 

 ous; others are simply ternate or biternate at one end; some 

 ao-ain are anchorate at the extremity, with three or four slender 

 flukes. In its canal connecting the three external and larger 

 openings, and in its beautiful open network of spicules, it seems 

 to diff'er generically from Tetliea. In the shape of its spicules, 

 but not in some other respects, it resembles the DorvilUa agarici- 

 formis of Mr. W. S. Kent, and the Tetliea mxiricata of Bower- 

 bank. As the Canadian sponge may possibly be the same as Dr. 

 Bowerbank's imperfectly characterized species, I refrain for the 

 present from giving it a name. It is only fair to add that before 

 I had dredged this species in a living state, my friend Mr. G. T. 

 Kennedy, M.A., had found specimens in the Post-Pliocene clays 

 of Montreal, which are undoubtedly conspecific with it. 



AcTiNOZOA. — A few individuals o? Pennatula ocuJeafa Dan., 

 yar., and of Virgidaria Ljiingmanii Koll, were taken in the 

 deep-sea mud, t* gether with large tubes apparently belonging to 

 Ccrianthus honalis Verrill, though the animal of this latter 



