| Dalyellia viridis | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Order: | Rhabdocoela |
| Family: | Dalyelliidae |
| Genus: | Dalyellia |
| Species: | D. viridis |
| Binomial name | |
| Dalyellia viridis (Shaw, 1791) | |
Dalyellia viridis is a species of rhabdocoel flatworm in the family Dalyelliidae. [1]
The animal is usually colored intensively green due to zoochlorellae. [2] It is 2.5 to 4 mm long [3] with a rounded anterior and pointed posterior end. It possesses a pair of kidney-shaped eyes. [2] Mature animals carry many eggs in their body. [3]
It was described in 1791 by George Shaw as Hirudo viridis. [1]
It occurs in freshwater in stagnant waterbodies. It is most frequently found in temporary pools. [3]
The animal harbors symbiotic green algae (zoochlorellae) of the species Chlorella vulgaris in its body. It feeds on algae and animals, including microturbellarians. [3]
Chlorophyta is a division of green algae informally called chlorophytes.
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 200 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).
An aquatic animal is any animal, whether vertebrate or invertebrate, that lives in bodies of water for all or most of its lifetime. Aquatic animals generally conduct gas exchange in water by extracting dissolved oxygen via specialised respiratory organs called gills, through the skin or across enteral mucosae, although some are evolved from terrestrial ancestors that re-adapted to aquatic environments, in which case they actually use lungs to breathe air and are essentially holding their breath when living in water. Some species of gastropod mollusc, such as the eastern emerald sea slug, are even capable of kleptoplastic photosynthesis via endosymbiosis with ingested yellow-green algae.
The aggregating anemone, or clonal anemone, is the most abundant species of sea anemone found on rocky, tide swept shores along the Pacific coast of North America. This cnidarian hosts endosymbiotic algae called zooxanthellae that contribute substantially to primary productivity in the intertidal zone. The aggregating anemone has become a model organism for the study of temperate cnidarian-algal symbioses. They are most well known for the ability to clone themselves.
Zoochlorella is a coloquial term for any green algae that lives symbiotically within the body of an aquatic invertebrate animal or a protozoan.
Algae eater or algivore is a common name for any bottom-dwelling or filter-feeding aquatic animal species that specialize in feeding on algae and phytoplanktons. Algae eaters are important for the fishkeeping hobby and many are commonly kept by aquarium hobbyists to improve water quality. They are also important primary consumers that relay the biomass and energy from photosynthetic autotrophes up into the food web, as well as protecting the aquatic ecosystem against algae blooms.
Spongilla is a genus of freshwater sponges containing over 200 different species. Spongilla was first publicly recognized in 1696 by Leonard Plukenet and can be found in lakes, ponds and slow streams.Spongilla have a leuconoid body form with a skeleton composed of siliceous spicules. They are sessile organisms, attaching themselves to hard substrate like rocks, logs and sometimes to ground. Using their ostia and osculum these sponges filter the water for various small aquatic organisms such as protozoans, bacteria, and other free-floating pond life. Sponges of the genus Spongilla partake in symbiotic relationships with green algae, zoochlorellae. The symbiotic zoochlorellae give the sponges a green appearance and without them they would appear white.
The Mary River turtle is an endangered species of short-necked turtle in the family Chelidae. The species is endemic to the Mary River in south-east Queensland, Australia. Although this turtle was known to inhabit the Mary River for nearly 30 years, it was not until 1994 that it was recognised as a new species. There has been a dramatic decrease in its population due to low reproduction rates and an increase of depredation on nests.
The snakelocks anemone is a sea anemone found in the eastern Atlantic Ocean and the Mediterranean Sea. The latter population is however sometimes considered a separate species, the Mediterranean Snakelocks anemone.
Bonellia viridis, the green spoonworm, is a marine worm noted for displaying exceptional sexual dimorphism and for the biocidal properties of a pigment in its skin.
Anheteromeyenia argyrosperma is a freshwater sponge found across North America.
Sea anemones are a group of predatory marine invertebrates constituting the order Actiniaria. Because of their colourful appearance, they are named after the Anemone, a terrestrial flowering plant. Sea anemones are classified in the phylum Cnidaria, class Anthozoa, subclass Hexacorallia. As cnidarians, sea anemones are related to corals, jellyfish, tube-dwelling anemones, and Hydra. Unlike jellyfish, sea anemones do not have a medusa stage in their life cycle.
Macrostomidae is a family of small basal free-living flatworms, and are found in marine, brackish, and freshwater environments. There are currently about 180 named species in this family.
Eulalia viridis is a species of bright-green polychaete worm in the family Phyllodocidae. It can range from 5 to 15 cm in length and is usually found in shallow north Atlantic water under rocks or in mussel beds.
Euglena viridis is a freshwater, single cell, mixotroph microalgae bearing a secondary chloroplast. Their chloroplast is bounded by three layers of membrane without a nucleomorph. Normally, it is 40–65 μm long, slightly bigger than other well-known Euglena species: Euglena gracilis.
Chlorovirus, also known as Chlorella virus, is a genus of giant double-stranded DNA viruses, in the family Phycodnaviridae. This genus is found globally in freshwater environments where freshwater microscopic algae serve as natural hosts. There are 19 species in this genus.
Dalyellia is a genus of rhabdocoel flatworms belonging to the family Dalyelliidae.
Mesostoma ehrenbergii is a species of rhabdocoel flatworms in the family Typhloplanidae.
Gyratrix hermaphroditus is a species of rhabdocoel flatworm in the family Polycystididae.
Opistomum pallidum is a species of rhabdocoel flatworm in the family Typhloplanidae.
{{cite book}}: CS1 maint: multiple names: authors list (link)