MR. C. W. PEACH ON BEITISH POLTZOA. 483 



pitted with small hexagonal depressions. The other parts of the 

 specimen, where the ridges run, have also these hexagonal de- 

 pressions, but larger, with, basin-like depressions, and at the 

 bottom are perforated with a central opening ; the ridges are 

 also larger and higher : the mouths of the cells are much raised, 

 with a long pointed mucro, the point often hollow and bending 

 over a little, like the tip of the beak of a bird (fig. 7) ; these cells are 

 in the centre of the ridges, aiid when denuded of the mucro form a 

 chain of elongated cells (fig. 8) ; they are not in stra,ight lines, but 

 meander over the face of the specimen, accommodating themselves 

 to the irregularities of the elevations and depressions by longer 

 or shorter ridges. 



It is pale cream-colour on the ridges, nearly white in the de- 

 pressed spaces.. I may remark that the mucro on the raised cells 

 is never bifid or trifid, the rows of cells always meandering from 

 its earliest state ; nor does it rise into a dome shape, nor are the 

 pores at the bottom stellate as in D. liispida. There is another 

 peculiarity in it — that of repairing injuries and of laying a new 

 layer of cells over the lowest series (specimen exhibited at the 

 Society's Meeting). I have carefully examined the works of John- 

 ston, Busk, Alder, Couch, Hincks, Smith, &c., and find nothing 

 altogether like it ; in fact the difference between it and D. hispida 

 is so great that I feel justified in making it anew species. After 

 all, should it be thought that I am wrong, I shall still consider it a 

 good variety, and thus then it will be D. hispida, var. meandrina. 



Domopora truncata, Jameson. — This is, I believe, the true D. 

 truncata of Jameson and Porbes, but not of Fleming nor Busk. 

 My specimens were brought up by the fisher's lines from about 

 80 to 100 fathoms, in the Out Haaf, Shetland, in 1864; they are 

 on rather large rounded stones, and from the same locality as 

 those got by Jameson and Forbes. Fleming describes his as 

 " about 1 inch in height . . . the head stellate." Busk says, " Zoa- 

 rium simple or lobed (proliferous) ; cells disposed in twelve to 

 fourteen elevated hiserial rays on the rounded extremity of the 

 trunk or lobes," and in his pi. xxxi. of the ' Catalogue of Marine 

 Polyzoa,' part iii. 1875, in several figures has shown the " proli- 

 ferous " state and elevated truncate biserial rays. The figure of 

 Forbes's specimen given in vol. ii. of the second edition of John- 

 ston's ' British Zoophytes,' plate xxxiii. figs. 1, 2, and the descrip- 

 tion given in vol. i. p. 271, of the same work, help to confirm my 



