A revision of the British leeches of the family Erpobdellidae, with a description of Dina lineata (O. F. Müller, 1774), a leech new to British fauna
Article first published online: 20 AUG 2009
1952 The Zoological Society of London
Proceedings of the Zoological Society of London
Volume 122, Issue 2, pages 395–406, August 1952
How to Cite
Mann, K. H. (1952), A revision of the British leeches of the family Erpobdellidae, with a description of Dina lineata (O. F. Müller, 1774), a leech new to British fauna. Proceedings of the Zoological Society of London, 122: 395–406. doi: 10.1111/j.1096-3642.1952.tb00317.x
- Issue published online: 30 OCT 2009
- Article first published online: 20 AUG 2009
- November 8, 1951
- 1Revised descriptions of the British leeches of the family Erpobdellidae are given, together with accounts of their principal variations.
- 2Since the British Erpobdellidae cannot with certainty be identified by examination of external characters, a technique is described for separating the genera and species by the shape of the genital atrium.
- 3The leech Dina lineata (O. F. Müller, 1774) is recorded in Britain for the first time. It was collected in a roadside pond rich in calcium and in organic matter. It is an isolated occurrence, probably an example of recent colonization.
- 4Erpobdella testacea cannot establish itself in an environment favourable to E. octoculata, but in conditions of sewage pollution, or low total alkalinity, E. testacea becomes dominant.
- 5The division of E. octoculata into var. vulgaris and var. atomaria is of no taxonomic significance, and should be discontinued.
- 6Trocheta subviridis has been found most frequently in London and the Home Counties, but also occurs in Manchester, Gloucester, Glamorgan and Oxford. It is frequently associated with sewage works.