Collecting site

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]

Collected here:

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.