Charles Wachsmuth was a German-American paleontologist and businessman. After emigrating to the United States, he became a renowned expert on the Paleozoic fossil animals known as crinoids. He and his collaborator, Frank Springer, published numerous articles on the subject and built an exceptional collection of crinoid fossils. The culmination of his work was the two-volume "Monograph of the North American Crinoidea Camerata", coauthored with Springer and published posthumously in 1897.
Myosotella myosotis, common name the mouse ear snail, is a European species of small salt marsh snail, a terrestrial pulmonate gastropod mollusk in the family Ellobiidae.
Nemertodermatida is a class of Acoelomorpha, comprising 18 species of millimetre-sized turbellariform, mostly interstitial worms.
Catenulida is an order of flatworms in the classical classification, or a class of flatworms in a phylogenetic approach. They are relatively small free-living flatworms, inhabiting freshwater and marine environments. There are about 100 species described worldwide, but the simple anatomy makes species distinction problematic.
Childia is a genus of acoels in the family Mecynostomidae.
Jujubinus dispar is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Jujubinus guanchus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Jujubinus poppei is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Jujubinus vexationis is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Jujubinus is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails.
Nemertodermatidae is a family of wormlike animals in the phylum Acoelomorpha. They are similar to the flatworms of the phylum Platyhelminthes, and were traditionally classified as such.
Isodiametridae is a family of acoels.
Chaetonotidae is a family of gastrotrichs in the order Chaetonotida. It is the largest family of gastrotrichs with almost 400 species, some of which are marine and some freshwater. Current classification is largely based on shape and external structures but these are highly variable. Molecular studies show a high level of support for a clade containing Dasydytidae nested within Chaetonotidae.
Rhabditophora is a subphylum of flatworms. It includes all parasitic flatworms and most free-living species that were previously grouped in the now obsolete class Turbellaria. Therefore, it contains the majority of the species in the phylum Platyhelminthes, excluding only the catenulids, to which they appear to be the sister group.
Proseriata is an order of free-living flatworms in the class Rhabditophora with over 400 species described worldwide.
Sabussowia is a genus of flatworms belonging to the family Cercyridae.
Monocelididae is family of marine turbellarian flatworms in the order Proseriata, sub order Lithophora.
Gyratrix hermaphroditus is a species of rhabdocoel flatworm in the family Polycystididae.
Monocelis is a genus of flatworms belonging to the family Monocelididae.
Nemertinoides is a genus of worms belonging to the family Nemertodermatidae.
