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Atelocerata

Atelocerata is a proposed clade of arthropods that includes Hexapoda and Myriapoda, but excludes Crustacea and Chelicerata. The name is currently used interchangeably with Tracheata. or Uniramia sensu stricto. It is an extensive division of arthr ...

Austrobalanidae

These five genera belong to the family Austrobalanidae: Protelminius Buckeridge & Newman, 2010. Matellonius Buckeridge, 1983. Hexaminius Foster, 1982. (Hexaminius Фостер, 1982) Austrominius Buckeridge, 1982. Austrobalanus Pilsbry, 1916.

Brachystomellidae

These nine genera belong to the family Brachystomellidae: Brachystomella Agren, 1903. (Brachystomella Агрен, 1903) Cassagnella Najt & Massoud, 1974. Subclavontella Stach, 1949. (Subclavontella Стаха, 1949) Brachystomellides Arle, 1959. (Brachysto ...

Caputanurininae

Caputanurininae is a subfamily of springtails in the family Neanuridae. There are at least two genera and at least one described species, Caputanurina sinensis, in Caputanurininae.

Crustaceomorpha

Crustaceomorpha is a proposed clade of arthropods that includes crustaceans and numerous extinct groups. Synapomorphies for the clade are that the larval antenna is a feeding or locomotory organ, and there are six endopodal podomeres in post-ante ...

Frieseinae

These four genera belong to the subfamily Frieseinae: Halofriesea Yoshii & Sawada, 1997. Gisinea Massoud, 1965. (Gisinea Массуда, 1965) Tremoisea Cassagnau, 1973. Friesea Dalla Torre, 1895.

Hypogastruroidea

Hypogastruroidea is a superfamily of springtails in the order Poduromorpha. There are at least 2 families and more than 700 described species in Hypogastruroidea.

Isotogastrura

Isotogastrura is a genus of springtails in the family Isotogastruridae, the only genus of the family. There are at least 10 described species in Isotogastrura.

Mesachorutes

These two species belong to the genus Mesachorutes: Mesachorutes thomomys Chamberlain, 1943 i c g. Mesachorutes quadriocellatus Absolon, 1900 i c g. Data sources: I = ITIS C = "catalogue of life", g = GBIF, b = Bugguide.net

Mesogastrura

These five species belong to the genus Mesogastrura: Mesogastrura ojcoviensis Stach, 1919 i c g. Mesogastrura coeca Cassagnau, 1959 i c g. Mesogastrura boneti Tarsia in Curia, 1941 i c g. Mesogastrura tiliophila Loksa & Rubio, 1966 g. Mesogastrur ...

Microgastrura

These seven species belong to the genus Microgastrura: Microgastrura minutissima Mills, 1934 i c g. Microgastrura jamaicensis Massoud & Bellinger, 1963 i c g. Microgastrura duodecimoculata Stach, 1922 i c g. Microgastrura nanacatlica Vàzquez & Pa ...

Morulina

These 11 species belong to the genus Morulina: Morulina alia Christiansen & Bellinger, 1980. Morulina thulensis Hammer, 1953. Morulina gigantea Tullberg, 1876. Morulina nuda Cassagnau, 1955. Morulina callowayia Wray, 1953. Morulina nucifera. (Mor ...

Myriochelata

The Myriochelata or Paradoxopoda, is a proposed grouping of arthropods comprising the Myriapoda and Chelicerata. It is the sister clade to the Tetraconata. Evidence of this relationship between myriapods and chelicerates is derived from compariso ...

Neanuroidea

Neanuroidea is a superfamily of springtails in the order Poduromorpha. There are at least 3 families and more than 730 described species in Neanuroidea.

Neelidae

These four genera belong to the family Neelidae: Zelandothorax Delamare Debouteville & Massoud, 1963. Neelides Caroli, 1912. (Neelides Кароли, 1912) Neelus Folsom, 1896. (Neelus Фолсом, 1896) Megalothorax Willem, 1900. (Megalothorax Виллем, 1900)

Odontellidae

These nine genera belong to the family Odontellidae: Pseudostachia Arle, 1968. (Pseudostachia Арле, 1968) Xenyllodes Axelson, 1903. (Xenyllodes Аксельсон, 1903) Superodontella. Austrodontella Ellis & Bellinger, 1973. Odontella Schaffer, 1897. (Od ...

Oncobryidae

Oncobryidae is a family of extinct springtails in the order Collembola. There is at least one genus, † Oncobrya, and one species, † Oncobrya decepta, in Oncobryidae. It has been found in Alberta, Canada

Onychiuroidea

Onychiuroidea is a superfamily of springtails in the order Poduromorpha. There are about 5 families and more than 630 described species in Onychiuroidea.

Orogastrura

These eight species belong to the genus Orogastrura: Orogastrura pallida Cassagnau, 1954 i c g. Orogastrura dilatata Cassagnau, 1959 i c g. Orogastrura stebaevae Babenko in Babenko, Chernova, Potapov & Stebaeva, 1994 i c g. Orogastrura parva Gisi ...

Pachytullbergiidae

Pachytullbergiidae is a family of springtails in the order Poduromorpha. There are at least two genera and four described species in Pachytullbergiidae.

Paraxenylla

These 10 species belong to the genus Paraxenylla: Paraxenylla sooretamensis g. (Paraxenylla sooretamensis г) Paraxenylla mangle Murphy, 1965 i c g. Paraxenylla oceanica Yosii, 1960 i c g. Paraxenylla piloua Thibaud & Weiner in Najt, & Matile, 199 ...

Parisotoma

These 11 species belong to the genus Parisotoma: Parisotoma reducta Rusek, 1984 g. Parisotoma trichaetosa Martynova, 1977 g. Parisotoma sexsetosa g. (Parisotoma sexsetosa г) Parisotoma picea Salmon, 1949 c g. Parisotoma dividua Salmon, 1944 c g. ...

Paronellidae

Paronellidae is a family of elongate-bodied springtails in the order Entomobryomorpha. There are about 18 genera and at least 90 described species in Paronellidae.

Proisotominae

Proisotominae is a subfamily of elongate-bodied springtails in the family Isotomidae. There are about 7 genera and more than 190 described species in Proisotominae.

Protanura

These six species belong to the genus Protanura: Protanura papillata Cassagnau & Delamare Deboutteville, 1955 g. Protanura quadrioculata Borner, 1901 g. Protanura pseudomuscorum Borner, 1903 g. Protanura mediterranea Stach, 1967 g. Protanura mont ...

Pseudacherontides

These nine species belong to the genus Pseudacherontides: Pseudacherontides aspinatus Stach, 1959 i c. Pseudacherontides edaphicus Yosii, 1971 i c g. Pseudacherontides zenkevitchi Djanaschvili, 1971 i c g. Pseudacherontides bisetosus Stach, 1959 ...

Rhachodesmidae

Rhachodesmidae is a family of flat-backed millipedes in the order Polydesmida. There are more than 20 genera and at least 80 described species in Rhachodesmidae.

Salina (springtail)

Salina trilobata Mills, 1932. Salina beta Christiansen & Bellinger, 1980. Salina mulcahyae Christiansen & Bellinger, 1980. Salina celebensis Schaeffer, 1898. Salina banksi Macgillivray, 1894.

Scorpiurus aramoana

Scorpiurus aramoana is a species of fly in the family Dolichopodidae. It is endemic to New Zealand. The species was first discovered in December 2017 on the saltmarsh mudflats of Aramoana near Dunedin in the South Island of New Zealand, and later ...

Sminthurididae

Sminthurididae is a family of globular springtails in the order Symphypleona. There are about 5 genera and more than 40 described species in Sminthurididae.

Sphyrotheca

These seven species belong to the genus Sphyrotheca: Sphyrotheca mirabilis Yosii, 1965 g. Sphyrotheca confusa Snider, 1978 i c g. Sphyrotheca minnesotensis Guthrie, 1903 i c g b. Sphyrotheca formosana Yosii, 1965 g. Sphyrotheca nani Christiansen ...

Tetraclitidae

These 10 genera belong to the family Tetraclitidae: Epopella Ross, 1970. (Epopella Росс, 1970) † Tetraclitella Hiro, 1939. Tesseropora Pilsbry, 1916. † Tesseroplax Ross, 1969. Newmanella Ross, 1969. (Newmanella Росс, 1969) Yamaguchiella Ross & Pe ...

Thibaudylla

These four species belong to the genus Thibaudylla: Thibaudylla palpata Deharveng & Najt in Tillier, 1988 i c g. Thibaudylla thibaudi Massoud, 1965 i c g. Thibaudylla danieleae Deharveng & Najt in Tillier, 1988 i c g. Thibaudylla anniae Najt & We ...

Uchidanurinae

Uchidanurinae is a subfamily of springtails in the family Neanuridae. There are at least three genera and at least one described species, Denisimeria caudata, in Uchidanurinae.

Chaetosomatida

Chaetosomatida is a small group of minute, free-living, aquatic organisms which are usually placed as an annex to the Nematoda. Indeed Mechnikov, to whom owe most of our knowledge about these forms, calls them "creeping nematodes". They are usual ...

Parascaris

Parascaris is a genus of nematodes in the family Ascarididae. It contains two species, Parascaris equorum and Parascaris univalens, which are morphologically identical, but can be distinguished by chromosome number. Both species parasitize horses.

Acrocirridae

Acrocirridae is a family of polychaete worms. Acrocirrids are detritivores, catching falling particles with numerous long prostomial tentacles. There are eight known genera, and at least 21 described species and subspecies within the Acrocirridae ...

Acromegalomma interruptum

Acromegalomma interruptum is a bristle worm from the Sabellidae family. The body of the worm consists of a head, a cylindrical, segmented body and a tailpiece. The head consists of a prostomium and a peristomium and carries paired appendages.

Aeolosoma

Aeolosoma is a genus of minute annelid worms, variously attributed either to oligochaetes or polychaetes. Unlike most polychaetes, they reside in freshwater environments in various parts of the world. They can be kept in aquaria year-round.

Alitta

Alitta is a genus of marine annelids in Nereididae family. There are three recognised species within the genus, Alitta grandis, Alitta succinea and Alitta virens. Alitta brandti Malmgren, 1865 was originally considered part of the genus, but is n ...

Ampharetinae

Ampharetinae are a subfamily of terebellid "bristle worm". As such, they belong to the order Canalipalpata, one of the three main clades of polychaetes. They are the largest subfamily of the Ampharetidae, of which they contain far more than half ...

Amphinomidae

Amphinomidae, also known as the bristle worms or sea mice, are a family of marine polychaetes, many species of which bear chaetae mineralized with carbonate. The best-known amphinomids are the fireworms, which can cause great pain if their toxin- ...

Aphelochaeta

A. saipanensis Magalhaes & Bailey-Brock, 2013. A. striata Dean & Blake, 2016. A. caribbeanensis Blake & Dean, 2019. A. praeacuta Dean & Blake, 2016. A. honouliuli Magalhaes & Bailey-Brock, 2013. A. antelonga Dean & Blake, 2016. A. guimondi Dean & ...

Aphelochaeta antelonga

Aphelochaeta antelonga is a species of bitentaculate cirratulidan first found in the Pacific coast of Costa Rica, at a shallow subtidal depth of about 11 to 18 metres in the Gulf of Nicoya. It is characterised by possessing a long biannulate peri ...

Aphelochaeta guimondi

Aphelochaeta guimondi is a species of bitentaculate cirratulidan first found in the Pacific coast of Costa Rica, at a shallow subtidal depth of about 11 to 26 metres in the Gulf of Nicoya. It is characterised by possessing a wide dorsal trough in ...

Aphelochaeta praeacuta

Aphelochaeta praeacuta is a species of bitentaculate cirratulidan first found in the Pacific coast of Costa Rica, at a shallow subtidal depth of about 11 to 28 metres in Bahia Culebra. It is characterised by possessing a first peristomial annulat ...

Aphelochaeta striata

Aphelochaeta striata is a species of bitentaculate cirratulidan first found in the Pacific coast of Costa Rica, at a shallow subtidal depth of about 11 to 28 metres in the Gulf of Nicoya. It is characterised by possessing a narrow body and transv ...

Aphelochaeta zebra

Aphelochaeta zebra is a species of bitentaculate cirratulidan first found in the Pacific coast of Costa Rica, at a coral reef in Golfo Dulce. It is characterised by possessing an expanded posterior end and by its darkly-staining intersegmental re ...

Arctonoe

Arctonoe is a genus of scaled polychaete worms commonly known as the "scale worms". Members of this genus often live as commensals of other marine animals.

Benthoscolex

Benthoscolex, is a genus of fireworms belonging to the family Amphinomidae. The genus contains 4 species. Members of the genus have a spindle and flat body. Eyes are absent.