Ethusa pygmaea Alcock, 1894
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
- Ethusa pygmaea Alcock, 1894
- Name authority
- Alcock, 1894
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Malacostraca
- Order
- Decapoda
- Family
- Ethusidae
- Genus
- Ethusa
- Extinction status
- Recorded extant
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
- phylumArthropoda
- subphylumCrustacea
- classMalacostraca
- orderDecapoda
- suborderPleocyemata
- infraorderBrachyura Latreille, 1802
- section zoologyEubrachyura de Saint Laurent, 1980
- subsection zoologyHeterotremata Guinot, 1977
- superfamilyDorippoidea MacLeay, 1838
- familyEthusidae Guinot, 1977
- genusEthusa Roux, 1830
- speciesEthusa pygmaea Alcock, 1894
Close classified relatives
These entries share the source’s genus, Ethusa. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Ethusa izuensis Sakai, 1937 | EthusidaeArthropoda | Accepted speciesRecorded extant |
| Ethusa lata Rathbun, 1894 | EthusidaeArthropoda | Accepted speciesRecorded extant |
| Ethusa latidactylus Parisi, 1914 | EthusidaeArthropoda | Accepted speciesRecorded extant |
| stalkeye porter crabEthusa mascarone (Herbst, 1785) | EthusidaeArthropoda | Accepted speciesRecorded extant |
| Ethusa minuta Sakai, 1937 | EthusidaeArthropoda | Accepted speciesRecorded extant |
| Ethusa obliquedens Chen, 1993 | EthusidaeArthropoda | Accepted speciesRecorded extant |
| Ethusa rosacea A. Milne-Edwards & Bouvier, 1897 | EthusidaeArthropoda | Accepted speciesRecorded extant |
| Ethusa rugulosa A. Milne-Edwards & Bouvier, 1897 | EthusidaeArthropoda | Accepted speciesRecorded extant |
| Ethusa sinespina Kensley, 1969 | EthusidaeArthropoda | Accepted speciesRecorded extant |
| Ethusa steyaerti Hendrickx, 1989 | EthusidaeArthropoda | Accepted speciesRecorded extant |
| spiketoe sumo crabEthusa tenuipes Rathbun, 1897 | EthusidaeArthropoda | Accepted speciesRecorded extant |
| truncate sumo crabEthusa truncata A. Milne-Edwards & Bouvier, 1899 | EthusidaeArthropoda | Accepted speciesRecorded extant |
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.
- Alcock, A. (1894). Natural history notes from H.M. Indian Marine Survey Steamer ‘Investigator,’ Commander R. F. Hoskyn, R.N., late commanding. Series II., No. 1. On the results of deep-sea dredging during the season of 1890–91 (cont.) [part 3]. Annals and Magazine of Natural History, Ser. 6, 13: 400–411. https://doi.org/10.1080/00222939408677721 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:3BLVP. Classification follows source parent identifiers. English common names may vary by region.