THE NATURAL-HISTORY CATALOGUE
A branch of the living world.
110,000 accepted animal species, linked through classification, synonyms, distributions and source literature.
These attributed records come from Catalogue of Life, 2026-09-11. Detail varies; they are not all fully researched, illustrated articles. Browse researched folklore and fiction.
Matches documented source distribution records. Geographic coverage is incomplete.
| Species | Classification | Source status |
|---|---|---|
| Eucyclops (Breviramocyclops) siolii Herbst, 1962 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Ciliocyclops) rarispinus (Sars G.O., 1909) | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Denticyclops) alekseevi Mercado-Salas & Suárez-Morales, 2016 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Denticyclops) ibleicus Pesce & Galassi, 1987 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Denticyclops) leptacanthus Kiefer, 1956 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Denticyclops) longispinosus Pesce & Galassi, 1987 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Denticyclops) neomacruroides Dussart & Fernando, 1990 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Eucyclops) acanthoides (Douwe, 1914) | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Eucyclops) australiensis Morton, 1990 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Eucyclops) bryophilus Lindberg, 1950 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Eucyclops) farsicus Lindberg, 1941 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Eucyclops) parvicornis Harding, 1942 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Eucyclops) prionophorus Kiefer, 1931 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Eucyclops) romaniensis Alekseev, 2010 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Eucyclops) spatharum Harding, 1942 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Eucyclops) tziscao Mercado-Salas, 2013 In: Gutiérrez-Aguirre, Mercado-Salas & Cervantes-Martínez, 2013 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Macrurocyclops) dubius (Sars G.O., 1909) | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Macrurocyclops) neocaledoniensis Dussart, 1984 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Macrurocyclops) orthostylis Lindberg, 1952 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Mrazekicyclops) echinatus (Kiefer, 1926) | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Sarsicyclops) thienemanni Kiefer, 1930 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Speratocyclops) biwensis Ishida, 1998 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Speratocyclops) dumonti Alekseev, 2000 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Speratocyclops) productus Kiefer, 1936 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Subterrocyclops) chivahensis Lindberg, 1960 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops (Subterrocyclops) graeteri (Chappuis, 1927) | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops caparti Lindberg, 1951 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops defayeae Mercado-Salas & Suárez-Morales, 2016 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops pacificus Ishida, 2000 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyclops permixtus Kiefer, 1929 | CyclopidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyllus nevadensis (Casey, 1888) | CurculionidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyphonia bifurcata (Sakakibara, 1968) | MembracidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyphonia furcata (Burmeister, 1833) | MembracidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyphonia nasalis (Stål, 1862) | MembracidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucypraedia cailliaudi (Vasseur, 1882) | OvulidaeMollusca | Accepted speciesRecorded extinct |
| Eucypris pestai Graf, 1931 | CyprididaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyrta albicollis Felder, 1874 | ErebidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyrtopogon albibarbus Curran, 1923 | AsilidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyrtopogon calcaratus Curran, 1923 | AsilidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyrtopogon maculosus (Coquillett, 1904) | AsilidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyrtopogon nebulo (Osten Sacken, 1877) | AsilidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyrtopogon nigripes (Jones, 1907) | AsilidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucyrtopogon punctipennis (Melander, 1923) | AsilidaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucythere (Rotundracythere) rotunda (Hornibrook, 1952) | EucytheridaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucythere argus (Sars, 1866) | EucytheridaeArthropoda | Accepted speciesRecorded extant |
| Eucythere calabra (Colalongo & Pasini, 1980) | EucytheridaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucythere hyboma Whatley & Coles, 1987 | EucytheridaeArthropoda | Accepted speciesExtinction status not supplied |
| Eucythere insolita Schneider, 1971 | EucytheridaeArthropoda | Accepted speciesRecorded extant |
| Eucythere pubera Bonaduce, Ciampo & Masoli, 1976 | EucytheridaeArthropoda | Accepted speciesRecorded extant |
| Eucythere sphaenoidea Hao, 1988 | EucytheridaeArthropoda | Accepted speciesRecorded extant |
Source and selection
Bánki, O., Roskov, Y., Döring, M., Ower, G., Hernández Robles, D. R., Plata Corredor, C. A., Stjernegaard Jeppesen, T., Örn, A., Pape, T., Hobern, D., Garnett, S., Little, H., DeWalt, R. E., Miller, J., Orrell, T., Aalbu, R., Abbott, J., Aedo, C., Aescht, E., et al. (2026). Catalogue of Life (Version 2026-09-11). Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgz5n
First records in source order under phylum quotas, then source-order overflow if a quota is short. This is a selective snapshot. Source name strings can include author names, which are also searchable.