Taxa described in 1851

The four-toothed whales or giant beaked whales are beaked whales in the genus Berardius. They include Arnoux's beaked whale (Berardius arnuxii) in cold Southern Hemispheric waters, and Baird's beaked whale (Berardius bairdii) in the cold temperate waters of the North Pacific. A third species, Sato's beaked whale (Berardius minimus), was distinguished from B. bairdii in the 2010s.

Clionaidae is a family of ectoparasitic demosponges which are found worldwide. This group of sponges are well known for boring holes in calcareous material such as mollusc shells and coral skeletons, using both chemical and mechanical processes.

Necyria is a Neotropical metalmark butterfly genus.

Lyropteryx is a genus of butterflies of the family Riodinidae. Species of this genus are widespread in the tropical areas of the South America.

Riodina is a Neotropical metalmark butterfly genus.

Aricoris is a genus in the butterfly family Riodinidae present in the Neotropical realm.

Themone is a genus in the butterfly family Riodinidae present only in the Neotropical realm.

Crepidomanes is a genus of ferns in the family Hymenophyllaceae. It is mostly distributed through the Old World but has one species, Crepidomanes intricatum, in North America.

Myriotrochus is a genus of sea cucumbers in the family Myriotrochidae.

Sericinus is a genus of swallowtail butterflies placed in the subfamily Parnassiinae. The genus has a complex history and a multiplicity of names have been applied to its single species.

Candidae is a family of gymnolaematan bryozoans (sea mats).

Phyllactinia is a genus of plant pathogenic fungi in the family Erysiphaceae (powdery mildews).

genus of plants

Chilicola is a genus of bee comprising 15 subgenera.

Linguatulidae is a family of crustaceans belonging to the order Porocephalida.

Pronephrium is a genus of ferns in the family Thelypteridaceae, subfamily Thelypteridoideae, in the Pteridophyte Phylogeny Group classification of 2016 (PPG I). Other sources sink Pronephrium into a very broadly defined genus Thelypteris. Some species were split off into the genera Abacopteris, Grypothrix and Menisciopsis in 2021 as a result of a phylogenetic study of the family Thelypteridaceae.

Sporopodium is a genus of lichen-forming fungi in the family Ectolechiaceae. Most Sporopodium species grow on living leaves (they are foliicolous) in tropical forests worldwide, though some also occur on twigs or bark. The genus is known for producing , small hood-like outgrowths that produce conidia (asexual spores) and help the lichen disperse to new surfaces. Species in the genus produce a wide variety of chemical compounds, including yellow and orange pigments that can help identify individual species. The genus was established in 1851 with the description of a first species from tropical

Portieria is a genus of red algae in the family Rhizophyllidaceae.