''Kritskyia'' is a genus of

monogenea Monogeneans are a group of ectoparasitic flatworms commonly found on the skin, gills, or fins of fish. They have a direct lifecycle and do not require an intermediate host. Adults are hermaphrodites, meaning they have both male and female reprod ...

ns in the family

Dactylogyridae Dactylogyridae is a family of monogenean flatworm The flatworms, flat worms, Platyhelminthes, or platyhelminths (from the Greek πλατύ, ''platy'', meaning "flat" and ἕλμινς (root: ἑλμινθ-), ''helminth-'', meaning "worm") are ...

. Like other monogeneans, species of ''Kritskyia'' only have one host required to complete their life cycle. In contrast to most species of monogeneans which are parasitic on the

gills A gill () is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are ...

or on the

skin Skin is the layer of usually soft, flexible outer tissue covering the body of a vertebrate animal, with three main functions: protection, regulation, and sensation. Other cuticle, animal coverings, such as the arthropod exoskeleton, have diffe ...

of fish, species of ''Kritskyia'' are

parasitic Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has c ...

in the urinary organs of fish. The genus was created by Anna Kohn in 1990, and the definition of the genus was emended by Boeger, Tanaka and Pavanelli in 2001. The name of the genus honours the American

parasitologist Parasitology is the study of parasites, their hosts, and the relationship between them. As a biological discipline, the scope of parasitology is not determined by the organism or environment in question but by their way of life. This means it f ...

Delane C. Kritsky Delane C. Kritsky is an American parasitologist who specialised on the Monogenea, a class of parasitic flatworms which are important ectoparasites of fishes. His research was mainly in the fields of taxonomy (biology), taxonomy, faunistics, and p ...

, "for his contribution to our knowledge of Brazilian Monogenea".

Species

Species of ''Kritskyia'' include: *'' Kritskyia moraveci'' Kohn, 1990, a parasite of the urinary bladder and ureters of the fish '' Rhamdia quelen'' (Quoy & Gaimard, 1824) (

Pimelodidae The Pimelodidae, commonly known as the long-whiskered catfishes, are a family of catfishes ( order Siluriformes). Taxonomy The family Pimelodidae has undergone much revision. Currently, it contains about 30 genera and about 90 recognized and kno ...

Siluriformes Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of Actinopterygii, ray-finned fish. Named for their prominent barbel (anatomy), barbels, which resemble a cat's whiskers, catfish range in size and behavior from ...

). The name of the species honours the

Czech Czech may refer to: * Anything from or related to the Czech Republic, a country in Europe ** Czech language ** Czechs, the people of the area ** Czech culture ** Czech cuisine * One of three mythical brothers, Lech, Czech, and Rus' Places *Czech, ...

parasitologist

František Moravec František Moravec CBE (23 July 1895 – 26 July 1966) was the chief Czechoslovak military intelligence officer before and during World War II. He moved to the United States after the war. Biography In 1915, Moravec was drafted into Austro-Hun ...

. *'' Kritskyia annakohnae'' Boeger, Tanaka & Pavanelli, 2001, a parasite of the urinary bladder and ureters of the

piranha A piranha or piraña (, , or ; or , ) is one of a number of freshwater fish in the family Serrasalmidae, or the subfamily Serrasalminae within the tetra family, Characidae in order Characiformes. These fish inhabit South American rivers, ...

s '' Serrasalmus marginatus'' Valenciennes, 1836 and '' Serrasalmus spilopleura'' Kner, 1858 (

Serrasalmidae The Serrasalmidae (serrasalmids) are a family of characiform fishes, recently elevated to family status. It includes more than 90 species. The name means "serrated salmon family", which refers to the serrated keel running along the belly of these ...

Characiformes Characiformes is an order of ray-finned fish, comprising the characins and their allies. Grouped in 18 recognized families, more than 2000 different species are described, including the well-known piranha and tetras.; Buckup P.A.: "Relationshi ...

). The name of the species honours the Brazilian parasitologist Anna Kohn. Boeger W. A., Tanaka L. K. & Pavanelli G. C. Neotropical Monogenoidea. 39: a new species of ''Kritskyia'' (Dactylogyridae, Ancyrocephalinae) from the ureters and urinary bladder of ''Serrasalmus marginatus'' and ''S. spilopleura'' (Characiformes, Serrasalmidae) from southern Brazil with an emended generic diagnosis . Zoosystema(1): 5-10 *'' Kritskyia boegeri'' Takemoto, Lizama & Pavanelli 2002, a parasite of the urinary bladder of ''

Prochilodus lineatus ''Prochilodus lineatus'', the streaked prochilod, is a species of ray-finned fish in the family Prochilodontidae. It is native to the Paraná—Paraguay and Paraíba do Sul river basins in South America. It performs long breeding migrations an ...

'' (

Prochilodontidae The Prochilodontidae, or flannel-mouthed characins, are a small family of freshwater fishes found primarily in the northern half of South America, south to Paraguay and northern Argentina. This family is closely related to the Curimatidae, and in ...

). *'' Kritskyia salmini'' Cepeda, Ceccarelli & Luque, 2011 a parasite of the urinary bladder of ''

Salminus brasiliensis ''Salminus brasiliensis'' (dourado, dorado, golden dorado, river tiger or jaw characin) is a large, predatory characiform freshwater fish found in central and east-central South America. Despite having ''Salminus'' in its name, the dorado is not r ...

'' (

References

{{Taxonbar, from=Q21219136 Dactylogyridae Monogenea genera Parasites of fish