| Notholca Temporal range: | |
|---|---|
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Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Rotifera |
| Class: | Monogononta |
| Order: | Ploima |
| Family: | Brachionidae |
| Genus: | Notholca Gosse, 1886 |
| Species | |
See text | |
Notholca is a genus of rotifers known from Holocene lake deposits as well as the present day. [1]
Notholca longispina is a synonym of Kellicottia longispina(Kellicott, 1879).
The rotifers, commonly called wheel animals or wheel animalcules, make up a phylum of microscopic and near-microscopic pseudocoelomate animals.
Euglena is a genus of single cell flagellate eukaryotes. It is the best known and most widely studied member of the class Euglenoidea, a diverse group containing some 54 genera and at least 800 species. Species of Euglena are found in fresh water and salt water. They are often abundant in quiet inland waters where they may bloom in numbers sufficient to color the surface of ponds and ditches green (E. viridis) or red (E. sanguinea).
The synurids (Synurales) are a small group of heterokont algae, found mostly in fresh water.
In evolutionary genetics, Muller's ratchet is a process through which, in the absence of recombination, an accumulation of irreversible deleterious mutations results. This happens due to the fact that in the absence of recombination, and assuming reverse mutations are rare, offspring bear at least as much mutational load as their parents. Muller proposed this mechanism as one reason why sexual reproduction may be favored over asexual reproduction, as sexual organisms benefit from recombination and consequent elimination of deleterious mutations. The negative effect of accumulating irreversible deleterious mutations may not be prevalent in organisms which, while they reproduce asexually, also undergo other forms of recombination. This effect has also been observed in those regions of the genomes of sexual organisms that do not undergo recombination.
The Kröller-Müller Museum is a national art museum and sculpture garden, located in the Hoge Veluwe National Park in Otterlo in the Netherlands. The museum, founded by art collector Helene Kröller-Müller within the extensive grounds of her and her husband's former estate, opened in 1938. It has the second-largest collection of paintings by Vincent van Gogh, after the Van Gogh Museum. The museum had 380,000 visitors in 2015.
The Vestfold Hills are rounded, rocky, coastal hills, 411 square kilometres (159 sq mi) in extent, on the north side of Sorsdal Glacier on the Ingrid Christensen Coast of Princess Elizabeth Land, Antarctica. The hills are subdivided by three west-trending peninsulas bounded by narrow fjords. Most of the hills range between 30 and 90 metres in height, with the highest summit reaching nearly 160 metres (520 ft).
Amoeba proteus , of which Chaos diffluens is one of many synonyms, is a large amoeba related to another genus of giant amoebae, Chaos. It can be bought at science supply stores.
Vorticella is a genus of bell-shaped ciliates that have stalks to attach themselves to substrates. The stalks have contractile myonemes, allowing them to pull the cell body against substrates. The formation of the stalk happens after the free-swimming stage.
Brachionus is a genus of planktonic rotifers occurring in freshwater, alkaline and brackish water.
Testate amoebae are a polyphyletic group of unicellular amoeboid protists, which differ from naked amoebae in the presence of a test that partially encloses the cell, with an aperture from which the pseudopodia emerge, that provides the amoeba with shelter from predators and environmental conditions.
Doris is a genus of sea slugs, specifically dorid nudibranchs. These animals are marine gastropod molluscs in the family Dorididae.
Lacrymaria is a genus of ciliates. Its best known species is the "Tear of Swan", Lacrymaria olor.
Henricia is a large genus of slender-armed sea stars belonging to the family Echinasteridae. It contains about fifty species.
Pseudomonilicaryon anser is a species of unicellular ciliates in the family Dileptidae, also known under the names Dileptus anser and Dileptus cygnus. The species is common in fresh water ponds, stagnant pools, mosses and soils.
Cephalodella is a genus of rotifers in the family Notommatidae.
Filinia is a genus of rotifers belonging to the family Trochosphaeridae.
Mesostoma ehrenbergii is a species of rhabdocoel flatworms in the family Typhloplanidae.
Epiphanes is a genus of rotifers belonging to the family Epiphanidae.
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