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Show 5 6 4 MESSRS. C. WARBURTON AND N. D. F. PEARCE ON [Dec. 12, that the present species cannot be safely referred to the genus Fridericia, which is so distinctly characterised by the peculiar paired character of its setae. There remains only Ilenha and Bryodrilus, from which, however, the species described in the present paper differs in several points. With genera described more recently than those included in Michaelsen's comprehensive work just quoted, e.g. Ilydrenchytrceus *, I cannot identify this semiparasitic Enchytraeid from India. It is true that four species, viz., Marionina glandulosa, Enchy-trceus minimus, E. parvulus t, and E. turicensis, possess, as does the species dealt with here, two setae in each lateral, and three in each ventral, bundle ; but I do not regard those European species as identical with the present Indian form. In the meantime I place the species in the genus Eenlea, where the characteristic glandular pouches of the gut are occasionally absent (e. g. Hewlea dicksoni), in default of living material and a more exhaustive examination. I propose to name it after Mr. Lefroy, who first directed attention to the species. 10. On new and rare British Mites of the Family Oribatida?. By C e c i l W a r b u r to n , M .A ., F.Z .S ., and N ig e l D. F. P e a r c e , M.A. [Received November 21,1905 .] (Plates XIX. & XX. J) Since the publication of Mr. A. D. Michael's Monograph on British Oribatidae in 1888, only a single new species, so far as we are aware, has been described from these islands. This was a Lohmannia taken in Ireland by Prof. Carpenter and described by Berlese in ‘ Redia,' vol. ii. fasc. i. (1904, Aug. 18), as L. insignis. Curiously enough this mite was in our hands while the Italian arachnologist was describing it, and narrowly escaped another specific name. No doubt the workers in this particular group have been few, but it is a striking testimony to the thoroughness of Mr. Michael's work that so long an interval should have elapsed without substantial addition to the British list of Oribatidae, for the study of which his labours have so admirably paved the way. For twTo years we have searched pretty thoroughly the neighbourhood of Cambridge, and especially of Grantchester, and have examined moss from many other localities, and we have hitherto met with 82 of the species described in the Monograph, and the seven forms, new, we believe, to science, of which the diagnoses are given below. * Bretcher, Rev. Zool. Suisse, ix. p. 208. f This worm is described by Friend (Irish Nat. xi. 1902, p. 110), though no sufficiently to permit of any certainty. J For explanation of the Plates, see p. 569. |