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Llyn Cwellyn (Quellan), Caernarvonshire (Caernarvon, Carnarvonshire, Arfon), North Wales, United Kingdom
latitude: 53.066666 53 04 00 N
longitude: -4.15 004 09 00 W
Precision of location: Alexandria Digital Library (with NGA GNDB data)
Site Named Here: By name of island, bay, strait, lake, river, or stream, etc., named in source publication
Stenostomum grabbskogense | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Stenostomum leucops | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Macrostomum johni | Dec 1968, Feb 1969, Feb 1970 | littoral | stones, vegetation | vegetational littoral, east shore (O.S. Ref. 23560550). Vegetation: Agropyron repens, Juncus subnodulosus, Littorella lacustris, and Phalaris arundinacea. Phalaris arundinacea (most specimens) |
Stenostomum unicolor | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Microstomum lineare | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Macrostomum johni | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Prorhynchus stagnalis | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Geocentrophora baltica | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Geocentrophora sphyrocephala | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Bothrioplana semperi | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Otomesostoma auditivum | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Gieysztoria infundibuliformis | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Castrella truncata | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Castrada lanceola | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Castrada viridis | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Strongylostoma elongatum | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Rhynchomesostoma rostratum | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Mesostoma lingua | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Gyratrix hermaphroditus | Nov 1968 - Oct 1969 | littoral | calcium poor lake (1.7 mg/l). | |
Gieysztoria infundibuliformis | Jul 1969 | littoral zone of upland, calcium-poor 'unproductive' lakes in Caernarvonshire, N. Wales. | ||
Macrostomum johni | Dec 1968 | littoral zone of upland, calcium-poor 'unproductive' lakes in Caernarvonshire, N. Wales. | ||
Macrostomum johni | Feb 1969 | littoral zone of upland, calcium-poor 'unproductive' lakes in Caernarvonshire, N. Wales. | ||
Castrada lanceola | Feb 1969 | littoral zone of upland, calcium-poor 'unproductive' lakes in Caernarvonshire, N. Wales. |