Collecting site

Llyn Ogwen, Caernarvonshire (Caernarvon, Carnarvonshire, Arfon), North Wales, United Kingdom

latitude: 53.116669     53 07 00 N
longitude: -4     004 00 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 Luther, 1960	Nov 1968 - Oct 1969	littoral		calcium poor lake (0.4 mg/l).
Stenostomum leucops (Duges, 1828)	Nov 1968 - Oct 1969	littoral		calcium poor lake (0.4 mg/l).
Stenostomum unicolor Schmidt, 1848	Nov 1968 - Oct 1969	littoral		calcium poor lake (0.4 mg/l).
Prorhynchus stagnalis Schultze, 1851	Nov 1968 - Oct 1969	littoral		calcium poor lake (0.4 mg/l).
Geocentrophora baltica (Kennel, 1883)	Nov 1968 - Oct 1969	littoral		calcium poor lake (0.4 mg/l).
Geocentrophora sphyrocephala de Man, 1876	Nov 1968 - Oct 1969	littoral		calcium poor lake (0.4 mg/l).
Microdalyellia armigera (Schmidt, 1862)	Nov 1968 - Oct 1969	littoral		calcium poor lake (0.4 mg/l).
Gieysztoria infundibuliformis (Fuhrmann, 1894)	Nov 1968 - Oct 1969	littoral		calcium poor lake (0.4 mg/l).
Castrada (Castrada) luteola Hofsten N, 1907	Nov 1968 - Oct 1969	littoral		calcium poor lake (0.4 mg/l).
Castrada (Castrada) neocomensis Volz, 1898	Nov 1968 - Oct 1969	littoral		calcium poor lake (0.4 mg/l).
Castrada (Castrada) viridis Volz, 1898	Nov 1968 - Oct 1969	littoral		calcium poor lake (0.4 mg/l).
Strongylostoma elongatum Hofsten N, 1907	Nov 1968 - Oct 1969	littoral		calcium poor lake (0.4 mg/l).
Rhynchomesostoma rostratum (Müller, 1774)	Nov 1968 - Oct 1969	littoral		calcium poor lake (0.4 mg/l).
Gyratrix hermaphroditus Ehrenberg, 1831	Nov 1968 - Oct 1969	littoral		calcium poor lake (0.4 mg/l).
Gieysztoria infundibuliformis (Fuhrmann, 1894)	Jul 1969			littoral zone of upland, calcium-poor 'unproductive' lakes in Caernarvonshire, N. Wales.