Genus is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses, in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.
Monogononta is a class of rotifers, found mostly in freshwater but also in soil and marine environments. They include both free-swimming and sessile forms. Monogononts generally have a reduced corona, and each individual has a single gonad, which gives the group its name. Males are generally smaller than females, and are produced only during certain times of the year, with females otherwise reproducing through parthenogenesis.
The rasptooth dogfish is a dogfish, found on the Kyushu–Palau Ridge in the northwest Pacific Ocean at depths of 360 m. Its maximum length is unknown. This species was originally described as Centroscyllium sheikoi, and subsequently allocated to the newly named genus Miroscyllium based on anatomical features not shared with other Centroscyllium. More recent molecular data suggest this species belongs to the genus Etmopterus, but as of June 2014 Miroscyllium sheikoi remains the valid name recognized by FishBase, the Catalog of Fishes World Register of Marine Species, and the IUCN
Brachionus is a genus of planktonic rotifers occurring in freshwater, alkaline and brackish water.
Atlanta is a genus of pelagic marine gastropod molluscs in the family Atlantidae. They are sometimes called heteropods.
Skenea is a genus of small to minute sea snails, marine gastropod mollusks in the family Skeneidae.
Putzeysia is a genus of sea snails, marine gastropod molluscs in the family Eucyclidae,
Litiopa is a genus of sea snails, marine gastropod mollusks in the family Litiopidae.
Seila is a genus of minute sea snails, marine gastropod molluscs or micromolluscs in the family Cerithiopsidae.
Rissoella is a genus of minute sea snails, marine gastropods, in the family Rissoellidae.
Dorymenia is a genus of solenogasters, a kind of shell-less, worm-like mollusk.
Alora is a genus of predatory sea snails, marine prosobranch gastropod mollusks in the family Epitoniidae, commonly known as wentletraps.
Favorinus is a genus of small sea slugs, aeolid nudibranchs, marine gastropod mollusks in the family Facelinidae.
Brookesena is a genus of sea snails, marine gastropod mollusks in the family Mathildidae,
Batheulima abbreviata is a species of sea snail, a marine gastropod mollusk in the genus Batheulima, a minor genus within the family Eulimidae.
Notommatidae is a family of rotifers in the order Ploima.
Cephalodella is a genus of rotifers in the family Notommatidae.
Cylindriscala is a genus of predatory sea snails, marine prosobranch gastropod mollusks in the family Epitoniidae, commonly known as wentletraps.
Gastropus is a genus of rotifers belonging to the family Gastropodidae.
Gastropodidae is a family of rotifers belonging to the order Ploima.
