252
T H E ROTIFERA OF
SUFFOLK.
THE ROTIFERA OF PRELIMINARY
SUFFOLK.
LIST.
T H E S E interesting and structurally wonderful Wheel Animalcules are widely distributed in even the smallest pools and ditches, as well as the larger areas of fresh and brackish water ; but hitherto greatly neglected in EAnglia, where Norfolk boasts little over fifty kinds, though both there and in Suffolk a wealth of species certainly awaits discovery. Those already noted are here presented as a mere incentive to future work upon this group of Zoology, now considered of primary rank, of equal dignitv to the Vertebrata, and placed between the Annelid Worms and Crustacea. Mr. H. E. Hurrell believes that " nearly all the kinds that are mentioned in my Yarmouth list (comprising only 51 species, of which 11 are from Suffolk : Trans. Norf. Nat. Soc. vii, p. 383) besides many more, are undoubtedly to be found in Suffolk, where scarcely more than the fringe of the subject is yet touched. I would suggest that some of your younger Members take up this group of Animals, which can be pursued in any district where there is a pond, ditch, lake, river or even fountain in a garden. Collectors could send their captures to me at 60 Albany Road in Yarmouth for names, or to the Quekett Society at British Microscopal Union House, Tavistock Square, W.C. 1, London. There are about a thousand different species in Britain, and no doubt most of them will be discovered in Suffolk, which County is already noted for having added to our indigenous fauna the celebrated Rotifer called Atrochus tentaculatus, found by the late Mr. Henry Goodwin of Stowmarket in a pond at Yaxley and first discovered, new to Science, in Warsaw some twentyodd years ago. Suffolk has the credit of also adding to Science the new Vorticellid Zoothamnium geniculata, which was originallv turned up here by the late Mr. Ayrton of Beccles." We have extracted the appended list from all printed records ; and it was thrown by our late Porifera Recorder last October (1936) into the nomenclature of Harring's 1913 ' Synopsis of the Rotatoria,' pending the publication of D. L. Bryce's new work upon the subject.
PHYLUM
ROTIFERA.
F A M I L Y NOTOMMATW JE. Notommata aurita, Müll. All these six kinds were Pleurotrocha petromvzon, Ehr. I found in brackish dykes at Cephalodella catellina, Müll. Cobholm in Southtown during C. gibba, Ehr. : April 1934 by Hurrell and Encentrum gründe, Western. | named by the late David E. marinum, D u j . L. Bryce.