Echinarachnius (Kewia) parvus Nisiyama, 1940-1941
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Identity & source status
- Scientific name
- Echinarachnius (Kewia) parvus Nisiyama, 1940-1941
- Name authority
- Nisiyama, 1940-1941
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Echinodermata
- Class
- Echinoidea
- Family
- Echinarachniidae
- Genus
- Echinarachnius
- Extinction status
- Recorded extinct
Source habitat flags: Marine: yes · Freshwater: no · Terrestrial: no. These do not form a complete habitat description.
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumEchinodermata
- subphylumEchinozoa
- classEchinoidea Schumacher, 1817
- subclassEuechinoidea Bronn, 1860
- infraclassIrregularia Latreille, 1825
- subterclassNeognathostomata Smith, 1981
- superorderLuminacea Mongiardino Koch, Thompson, Hiley, McCowin, Armstrong, Coppard, Aguilera, Bronstein, Kroh, Mooi & Rouse, 2022
- infraorderScutelliformes Haeckel, 1896
- familyEchinarachniidae Lambert in Lambert & Thiéry, 1914
- genusEchinarachnius Gray, 1825
- subgenusEchinarachnius (Kewia) Nisiyama, 1935
- speciesEchinarachnius (Kewia) parvus Nisiyama, 1940-1941
Close classified relatives
These entries share the source’s genus, Echinarachnius. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Echinarachnius (Echinarachnius) microthyroides Nisiyama, 1940-1941 | EchinarachniidaeEchinodermata | Accepted speciesRecorded extinct |
| Echinarachnius (Kewia) elongatus Nisiyama, 1940-1941 | EchinarachniidaeEchinodermata | Accepted speciesRecorded extinct |
| Echinarachnius asiaticus Michelin, 1859 | EchinarachniidaeEchinodermata | Accepted speciesRecorded extant |
| Echinarachnius astrodapsoides Wagner, 1974 | EchinarachniidaeEchinodermata | Accepted speciesRecorded extinct |
| Echinarachnius humilis Nisiyama, 1968 | EchinarachniidaeEchinodermata | Accepted speciesRecorded extinct |
| Echinarachnius naganoensis Morishita, 1953 | EchinarachniidaeEchinodermata | Accepted speciesRecorded extinct |
| common sand dollarEchinarachnius parma (Lamarck, 1816) | EchinarachniidaeEchinodermata | Accepted speciesRecorded extant |
| Echinarachnius plafkeri Wagner, 1974 | EchinarachniidaeEchinodermata | Accepted speciesRecorded extinct |
| Echinarachnius subtumidus Nisiyama & Hashimoto, 1950 | EchinarachniidaeEchinodermata | Accepted speciesRecorded extinct |
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- Nisiyama, S. (1940). On the Japaese Species of Echinarachnius. Sixtieth Birthday, 2: 803–862. Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:38FRD. Classification follows source parent identifiers. English common names may vary by region.