Ancylus


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Noun1.Ancylus - type genus of the family Ancylidae: river limpetAncylus - type genus of the family Ancylidae: river limpet
mollusk genus - a genus of mollusks
Ancylidae, family Ancylidae - freshwater gastropod
Ancylus fluviatilis, freshwater limpet, river limpet - minute conical gastropod superficially resembling a limpet but living and feeding on freshwater plants
References in classic literature ?
Sir Charles Lyell also informs me that a Dyticus has been caught with an Ancylus (a fresh-water shell like a limpet) firmly adhering to it; and a water-beetle of the same family, a Colymbetes, once flew on board the 'Beagle,' when forty-five miles distant from the nearest land: how much farther it might have flown with a favouring gale no one can tell.
The energetic physiology or scope for growth (SFG), has been studied in gastropods such as Ancylus fluviatilis (Calow, 1975), Bullia digitalis (Stenton-Dozey & Brown, 1988), Buccinum undatum (Kideys, 1998), Chorus giganteus (Navarro et al., 2002, 2006), Concholepas concholepas (Navarro & Torrijos, 1995), Haliotis tuberculata (Peck et al., 1987), Haliotis midae (Barkai & Griffiths, 1987, 1988), Haliotis fulgens (Farias et al., 2003), Nassarius conoidalis (Liu et al., 2011; Zhang et al., 2015), Nassarius siquijorensis (Liu et al., 2011), Patella vulgata (Davies et al., 1990), Planorbis contortus (Calow, 1975), Polinices duplicatus (Huebner & Edwards, 1981) and Thais lapillus (Stickle & Bayne, 1982).
While Lake Paajarvi was already isolated from the Yoldia Sea (Okko 1969), Lake Vanern became separated slightly later, at about 9500 years BP, just at the transition to the following Baltic freshwater stage, the Ancylus Lake.
In the Early Holocene the palaeogeographical development of the south-western Baltic area was determined by a regression of the freshwater Lake Ancylus followed by the marine Littorina Transgression.
DNA was extracted from six individuals of three freshwater invertebrate species using a modified salt-extraction protocol (Sunnucks and Hales, 1996): one specimen of Ancylus fluviatilis O.
Caddisflies Notidobin cilinris, Ithytrichia lamnllaris, Hydroptila sp., mayflies Heptagenin sulphurea, water beetles Elmis sp., molluscs Ancylus fluviatilis and dipterans Dicranota bimaculata species were absent from the sites in and below dams.
Species belonging to class 3 inhabit pristine conditions, species belonging to class 2 remain indifferent or gain biomass under moderate eutrophication, and species belonging to class 1 may be dominant over other species in heavily eutrophicated conditions Taxon Sensitivity Alderia modesta 3 Ancylus fluviatilis 3 Argulus spp.
To Palmers yard they sailed the tankers Ancylus, Miralda and Macoma, while the Alexia went to Greenwell and Company, at Sunderland.
Along the northern coast of the gulf, the Quaternary deposits are composed of glacial till, lacustrine-glacial deposits from local ice lakes and the Baltic Ice Lake, and Holocene (Ancylus Lake, Litorina and Limnea marine) sand and clays [21,22].
Hausen (1913) mentioned soil below the Ancylus sand and gravel at Piirsalu, Thomson (1933, 1937) described buried peat on the banks of the Parnu and Narva rivers.