MSBIAS source details
Mann, K. H. (1959). On Trocheta bykowskii Gedroyc, 1913, a leech new to the British fauna, with notes on the taxonomy and ecology of other Erpobdellidae. Proceedings of the Zoological Society of London. 132(3): 369-379.
489137
10.1111/j.1469-7998.1959.tb05527.x [view]
Mann, K. H.
1959
On Trocheta bykowskii Gedroyc, 1913, a leech new to the British fauna, with notes on the taxonomy and ecology of other Erpobdellidae
Proceedings of the Zoological Society of London
132(3): 369-379
Publication
Annelidabase.
Available for editors 
1. Trocheta bykowskii, a leech new to Britain, has been found in Windermere (English Lake District) and in Belfast, Northern Ireland. The author considers that it is a valid species.
2. Previous records of this leech are chiefly from the Polish Carpathian mountains, where it occupies the upper reaches of mountain streams. It has also been recorded from Austria, Switzerland and the Netherlands.
3. In Windermere it is apparently in the process of colonizing the inflowing streams on the eastern side of the lake.
4. The taxonomy and the habitat preferences of the other British erpobdellid leeches are also discussed.
British Islands
Systematics, Taxonomy
Trocheta bykowskii Gedroyc, 1913 (taxonomy source)