Tryonia is a genus of freshwater snails in the family Hydrobiidae. This genus is sometimes placed in the family Cochliopidae
William Stimpson was an American scientist. He was interested particularly in marine biology. Stimpson became an important early contributor to the work of the Smithsonian Institution and later, director of the Chicago Academy of Sciences.
Rissooidea, originally named Rissoacea by Gray, 1847, is a taxonomic superfamily of small and minute marine snails, belonging to the clade Littorinimorpha.
Littorinimorpha is a large order of snails, gastropods, consisting primarily of sea snails, but also including some freshwater snails and land snails.
Tellina is a widely distributed genus of marine bivalve molluscs, in the family Tellinidae.
Caecum is a genus of minute sea snails, marine gastropod micromolluscs or micromollusks in the family Caecidae or blind shells.
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.
Bipalium kewense, also known as the shovel-headed garden worm, is a species of large predatory land planarian with a cosmopolitan distribution. It is sometimes referred to as a "hammerhead flatworm" due to its half-moon-shaped head, but this name is also used to refer to other species in the subfamily Bipaliinae.
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.
Acotylea is a suborder of free-living marine turbellarian flatworms in the order Polycladida.
Truncatelloidea is a superfamily of snails, gastropod mollusks in the clade Caenogastropoda.
Bipaliinae is a subfamily of land planarians found mainly in Madagascar, the Indian subcontinent and Southeast Asia, although some species have been introduced worldwide.
Geoplana is a genus of land planarians from South America.
Ericthonius is a genus of amphipods in the family Ischyroceridae. There are at least 20 described species in Ericthonius.
Emplectonema is a genus of worms belonging to the family Emplectonematidae.
Valenciniidae is a family of worms belonging to the order Heteronemertea.
Diplopleura is a genus of nemerteans belonging to the family Lineidae.
Atyoida is a genus of freshwater shrimp in the family Atyidae. There are four species in the genus, each endemic to a different island group. The type species, Atyoida bisulcata, is endemic to Hawaiʻi and described by John Witt Randall in 1840.
Bipalium adensameri is a species of predatory land planarian. It has been found on Java in Indonesia as well as in Vietnam.
Chamaemelum fuscatum, commonly known as dusky dogfennel or dark chamomile, is an annual herb in the family Asteraceae, native to Europe and introduced to California and other areas of the continental United States. It is typically found in disturbed sites and grasslands, blooming in March and April.
