Hancockia ryrca Er. Marcus, 1957
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
- Hancockia ryrca Er. Marcus, 1957
- Name authority
- Er. Marcus, 1957
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Mollusca
- Class
- Gastropoda
- Order
- Nudibranchia
- Family
- Hancockiidae
- Genus
- Hancockia
- Extinction status
- Not supplied by this source
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
- phylumMollusca
- classGastropoda Cuvier, 1795
- subclassHeterobranchia Burmeister, 1837
- infraclassEuthyneura Spengel, 1881
- subterclassRingipleura
- superorderNudipleura Wägele & Willan, 2000
- orderNudibranchia Cuvier, 1817
- suborderDendronotina Odhner, 1934
- superfamilyDendronotoidea Allman, 1845
- familyHancockiidae MacFarland, 1923
- genusHancockia Gosse, 1877
- speciesHancockia ryrca Er. Marcus, 1957
Close classified relatives
These entries share the source’s genus, Hancockia. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Hancockia papillata (O'Donoghue, 1932) | HancockiidaeMollusca | Accepted speciesExtinction status not supplied |
| Hancockia uncinata (Hesse, 1872) | HancockiidaeMollusca | Accepted speciesExtinction status not supplied |
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.
- Marcus, Er. (1957). On Opisthobranchia from Brazil (2). Journal of the Linnean Society of London (Zoology), 43 (292): 390–486, figs. 1–246. https://doi.org/10.1111/j.1096-3642.1957.tb01559.x 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:3JJN6. Classification follows source parent identifiers. English common names may vary by region.