| Dendrocoelopsis americana | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Order: | Tricladida |
| Family: | Dendrocoelidae |
| Genus: | Dendrocoelopsis |
| Species: | D. americana |
| Binomial name | |
| Dendrocoelopsis americana (Hyman, 1939) | |
| Synonyms | |
Sorocelis americanaHyman, 1939 | |
Dendrocoelopsis americana is a species of triclad belonging to the family Dendrocoelidae. [2] It has been found in the South Central United States. [1]
Dendrocoelopsis americana can reach up to eighteen millimeters long and around 1.5–2 millimeters wide. [3] It has several eyes, arranged in two arclike bands on each side of its head. These bands have been recorded to have, individually, as few as eight eyes [4] or as many as twenty. [5] Its head is truncate. Its mouth and pharynx are in the middle of the body; the genital pore is located slightly below the mouth and pharynx. It is unpigmented, seen as a white or creamy color.
Dendrocoelopsis americana was first described in 1939 by Libbie Hyman, placed in the genus Sorocelis as Sorocelis americana. Though not explicitly stated in the original publication by Hyman, the specific epithet is almost certainly referring to its type locality of the Americas; Hyman remarked that the species was the first of the genus Sorocelis to be found on the American continents. [5] It was later placed into the genus Dendrocoelopsis by Roman Kenk. [3]
The species has been found in various parts of the Ozark Plateau, within the states of Oklahoma, Arkansas, and Missouri, as well as in other parts of the southern United States such as Texas. [1] It has been found near-exclusively in aquatic sites within caves.
Libbie Henrietta Hyman, was an American zoologist. She wrote numerous works on invertebrate zoology and the widely used A Laboratory Manual for Comparative Vertebrate Anatomy.
The Ozark cavefish, Amblyopsis rosae, is a small subterranean freshwater fish endemic to the United States. It has been listed as a threatened species in the US since 1984; the IUCN currently lists the species as Near Threatened, though it was previously listed as Vulnerable between 1986 and 1996. It is listed as Endangered and Threatened by the Missouri Department of Conservation.
Pseudocerotidae is a family of flatworms which includes the Bedford's flatworm. Pseudocerotidae are simple organisms categorized by their oval bodies and tentacles and bright colors. They use the cilia to glide along surfaces. Most commonly referred to as marine flatworms, closely related to the orders Macrostomorpha and Lecithoepitheliata. These organisms have very complex reproductive systems, no blood systems or organs for gas exchange, a simple brain and are hermaphroditic.
Pseudoceros is a genus of the flatworms Platyhelminthes.
The western grotto salamander, also called the Ozark blind salamander and previously known as just the grotto salamander, is a species of salamander in the family Plethodontidae. It is endemic to the United States. Its natural habitats are freshwater springs, inland karsts, and caves. It is not currently threatened, but vulnerable to changes in groundwater quality and reduction in bat population.
Typhlichthys subterraneus, the southern cavefish, is a species of cavefish in the family Amblyopsidae endemic to karst regions of the eastern United States.
Cambarus aculabrum is a rare species of cave-dwelling crayfish known by the common name Benton county cave crayfish. It is native to Arkansas in the United States, where it is known from only four locations. It is a federally listed endangered species of the United States.
Geoplanidae is a family of flatworms known commonly as land planarians or land flatworms.
Bipalium is a genus of large predatory land planarians. They are often loosely called "hammerhead worms" or "broadhead planarians" because of the distinctive shape of their head region. Land planarians are unique in that they possess a "creeping sole", a highly ciliated region on the ventral epidermis that helps them to creep over the substrate. Native to Asia, several species are invasive to the United States, Canada, and Europe. Some studies have begun the investigation of the evolutionary ecology of these invasive planarians.
The Ozark minnow is a species of ray-finned fish in the genus Notropis.
Bipalium adventitium, the wandering broadhead planarian, is a land planarian in the subfamily Bipaliinae. It has been accidentally introduced in the United States, where it is considered invasive.
Girardia is a genus of freshwater planarians belonging to the family Dugesiidae.
Kenkiidae is a family of freshwater triclads. Their species can be found sporadically in caves, groundwater, and deep lakes in Central Asia, Far East and North America.
Dendrocoelopsis alaskensis is a species of freshwater triclad in the family Dendrocoelidae. It is found in the White Mountains in Alaska.
Dendrocoelopsis piriformis is a species of freshwater triclad in the family Dendrocoelidae. It is found in Alaska.
Cura foremanii is a species of freshwater planarian belonging to the family Dugesiidae. It is found in freshwater habitats within North America.
Roman Kenk was a Slovenian, later American, zoologist.
Pseudoceros canadensis, commonly known as the Puget flatworm, is a species of free-living flatworm in the genus Pseudoceros, belonging to the family Pseudocerotidae.
Hymanella is a genus of triclad belonging to the family Planariidae. Species have been found in North America.
Anandroplana is a genus of flatworms belonging to the family Ilyplanidae.
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