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THE BRYOZOA OF SUFFOLK
Ptygura crystallina, E h r — I n various places to south of Yarmouth 1900-34. Sinantherina socialis, Linn.—In River Waveney at Beccles in 1900-1 (Hurrell). Lacinularia flosculosa, Müll.—Same river, at St. Olaves in Herringfleet. FAMILY COLLOTHECIDJE. Collotheca corntita, Dob.—Southtown ditches (Hurrell) ; great numbers on Myriophylhim spicatum at Cobholm in 1934. C. ornata, Ehr.—With the last kind, on the Myriophvllum in March 1932. " Stephanocerus fimbriatus, Goldf.—In Wavenev at Beccles in 1900, and Carlton Colville (Hurrell). FAMILY ATROCIIID/E. Atrochus tentaculatus, Wierz.—In a pond at Yaxley CH. Goodwin). Rotaria
rotatoria,
FAMILY PHILODINID/E. Pall.—Found at Cobholm in 1934 (Hurrell).
THE BRYOZOA OF SUFFOLK. PREI.IMINARY
LIST.
THE Bryozoa, formerly called Polyzoa, are now considered to constitute a phylum of paramount rank and of dignity equal to the Vertebrata, Standing popularly between the Shell-fish and Seaurchins, Echinodermata. But few of the Freshwater kinds of this group remain to be found here, though a very great number of the Marine ones, of which no less than a hundred and twentyfive species are known to occur at Plymouth, still await discovery in shrimpers' refuse, at the tide-line, and about the artificial bulwarks of our coast towns. T h e present short list of available local kinds was compiled (along with that of the Rotifera, supra) with the object of calling attention of our younger Members to the group and so, it is hoped, of giving a fillip to their study bv our Society. A s f a r a s Freshwater ones are concerned, Hartmeyer's 1909 Bryozoen in ' Die Susswasserfauna Deutschlands' has been followed ; and in most others, to which additions should easily be made, Hincks' 1880 ' British Marine Polyzoa' is adopted. T H E FRESHWATER
SPECIES.
Plumatella repens, Linn.—In Fritton Lake and a pond at Carlton Colville (Hurrell). Fredericella Suitana, Blbch.—Lound Run (Hurrell).