Taxa named by William Stimpson

species of crustacean

Hydrobiidae, commonly known as mud snails, is a large cosmopolitan family of very small freshwater and brackish water snails with an operculum, in the order Littorinimorpha.

Geoplanidae is a family of flatworms known commonly as land planarians or land flatworms.

Callinectes (from Ancient Greek κάλλος (kállos), meaning "beautiful", and νήκτης (nḗktēs), meaning "swimmer") is a genus of crabs containing species such as the Atlantic blue crab C. sapidus.

species of echinoderm

Planariidae is a family of freshwater planarians.

Liocarcinus is an extinct genus of crabs in the family Polybiidae.

species of crustacean

species of crustacean

genus of crustaceans

species of crustacean

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.

Tryonia is a genus of freshwater snails in the family Hydrobiidae. This genus is sometimes placed in the family Cochliopidae.

Petrolisthes is a genus of marine porcelain crabs, containing these extant species:

species of crustacean

species of echinoderm

species of annelid

Polyonyx is a genus of porcelain crabs in the family Porcellanidae. There are at least 42 described species in Polyonyx.

Loxorhynchus is a genus of crabs of the eastern Pacific Ocean in the family Epialtidae.

species of crustacean

Cystiscidae is a taxonomic family of small sea snails, marine gastropod mollusks or micromollusks.

Acaulis is a genus of hydrozoans that typically lives in polar environments but is known to have been observed in subtropical and boreal regions. Its only species is Acaulis primarius. They are said to range in depth from below sea level, and also reproduce asexually.

Potamopyrgus is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Tateidae.

Pachycheles is a genus of porcelain crabs in the family Porcellanidae. There are more than 40 described species in Pachycheles.

species of crustacean in the Porcelain crab family (Porcellanidae)

genus of molluscs

species of king crab

Cronius is a genus of crabs containing the two species Cronius ruber and Cronius tumidulus.

species of crustacean

Osachila is a genus of crabs in the family Aethridae, containing three fossil species, and the following extant species: Osachila acuta Stimpson, 1871 Osachila antillensis Rathbun, 1916 Osachila expansa Takeda, 1977 Osachila galapagensis Rathbun, 1935 Osachila kaiserae Zimmerman & Martin, 1999 Osachila lata Faxon, 1893 Osachila levis Rathbun, 1898 Osachila semilevis Rathbun, 1916 Osachila sona Garth, 1940 Osachila stimpsonii Studer, 1883 Osachila tuberosa Stimpson, 1871

species of crab

species of crustacean

species of land hermit crab

Cochliopa is a genus of freshwater snails, specifically cave snails, aquatic gastropod mollusks in the family Cochliopidae.

species of hermit crab

Petrochirus is a genus of hermit crabs of the family Diogenidae. There are seven described species of the genus. The genus was described by William Stimpson in 1858.

species of crustacean

species of sea cucumber

species of crustacean

Epilobocera is a genus of crabs in the family Epiloboceridae (formerly Pseudothelphusidae). It is the only genus in its family; this taxonomic arrangement follows the revision of the family Pseudothelphusidae by Álvarez and colleagues.