knobbed porgy
Calamus nodosus Randall & Caldwell, 1966
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.
Open encyclopedia reference
The knobbed porgy (Calamus nodosus) is an ocean-going species of gamefish of the bream/porgy family, Sparidae. They are only found in the western portion of the tropical Atlantic Ocean, where they are often caught with trawling nets or by angling, and used as food. The knobbed porgy was named by John Randall and David K. Caldwell as part of a 1966 review of the genus Calamus, which was published in the academic journal Science. Randall and Caldwell also described three other species of Calamus in the paper.
Wikipedia contributors, Knobbed porgy; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T03:33:20.568953+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Calamus nodosus Randall & Caldwell, 1966
- Name authority
- Randall & Caldwell, 1966
- Common name
- knobbed porgy
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Family
- Sparidae
- Genus
- Calamus
- 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
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- gigaclassActinopterygii
- superclassActinopteri
- classTeleostei
- familySparidae Rafinesque, 1818
- genusCalamus Swainson, 1839
- speciesCalamus nodosus Randall & Caldwell, 1966
Close classified relatives
These entries share the source’s genus, Calamus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Calamus mu Randall & Caldwell, 1966 | SparidaeChordata | Accepted speciesExtinction status not supplied |
| sheepshead porgyCalamus penna (Valenciennes, 1830) | SparidaeChordata | Accepted speciesExtinction status not supplied |
| Calamus cervigoni Randall & Caldwell, 1966 | SparidaeChordata | Accepted speciesExtinction status not supplied |
| littlehead porgyCalamus proridens Jordan & Gilbert, 1884 | SparidaeChordata | Accepted speciesExtinction status not supplied |
| Calamus taurinus (Jenyns, 1840) | SparidaeChordata | 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.
- Randall, J. E., & Caldwell, D. K. (1966). A review of the sparid fish genus Calamus, with descriptions of four new species. Bulletin of the Los Angeles County Museum of Natural History, No. 2: 1–47. 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:68V87. Classification follows source parent identifiers. English common names may vary by region.