| Hymanella | |
|---|---|
 | |
| Hymanella reteunova | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Order: | Tricladida |
| Family: | Planariidae |
| Genus: | Hymanella Castle, 1941 |
| Species | |
See text | |
Hymanella is a genus of triclad belonging to the family Planariidae. [1] Species have been found in North America.
The generic name was given in honor of Libbie Hyman, for her contributions to knowledge of American triclads. Hyman additionally had given the suggestion that a new genus be designated for the type species, Hymanella reteunova. [2]
There are three species recognized in the genus:
Planaria is a genus of planarians in the family Planariidae.
Sequential hermaphroditism is one of the two types of hermaphroditism, the other type being simultaneous hermaphroditism. It occurs when the organism's sex changes at some point in its life. In particular, a sequential hermaphrodite produces eggs and sperm at different stages in life. Sequential hermaphroditism occurs in many fish, gastropods, and plants. Species that can undergo these changes do so as a normal event within their reproductive cycle, usually cued by either social structure or the achievement of a certain age or size. In some species of fish, sequential hermaphroditism is much more common than simultaneous hermaphroditism.
Dugesia is a genus of dugesiid triclads that contains some common representatives of the class Turbellaria. These common flatworms are found in freshwater habitats of Africa, Eurasia, and Australia. Dugesia is best known to non-specialists because of its regeneration capacities.
Planariidae is a family of freshwater planarians.
Charopidae is a taxonomic family of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Punctoidea.
Helicarionidae is a family of air-breathing land snails or semi-slugs, terrestrial pulmonate gastropod mollusks in the superfamily Helicarionoidea.
Dugesiidae is a family of freshwater planarians distributed worldwide. The type genus is Dugesia Girard, 1850.
Girardia is a genus of freshwater planarians belonging to the family Dugesiidae.
Schmidtea is a genus of freshwater triclads. Species of the genus Schmidtea are widely used in regeneration and developmental studies.
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.
Girardia tigrina, known as the brown planarian or the immigrant triclad flatworm, is a species of dugesiid native to the Americas. It has been accidentally introduced into Europe and Japan.
Cura is a genus of freshwater flatworm (triclads) belonging to the family Dugesiidae.
Spathula is a genus of dugesiid triclad. Its species are found in Australia and New Zealand.
Dimarcusidae is a family of triclads found mostly in freshwater habitats of caves, although at least one species, Rhodax evelinae, occurs in surface waters. Currently the family contains only seven species distributed in five genera, although the total number of species is thought to be much higher.
Neppia is a genus of dugesiid triclad that is found in South America, Subantarctic region, Africa, Tasmania and New Zealand.
Phagocata is a genus of planariid triclad.
Camerata robusta is a species of triclad flatworm found in the shores of Italy. It is the only known species in the genus Camerata. Camerata refers to the chambers present in this genus' penis. The species name robusta refers to the strong muscles present in the copulatory apparatus.
Sphalloplana is a genus of triclads belonging to the family Kenkiidae.
Dendrocoelopsis americana is a species of triclad belonging to the family Dendrocoelidae. It has been found in the South Central United States.
Roman Kenk was a Slovenian, later American, zoologist.
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