Pacific sharpnose shark
Rhizoprionodon longurio (Jordan & Gilbert, 1882)
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 Pacific sharpnose shark (Rhizoprionodon longurio) often migrates along the Pacific coast of Mexico. They are most commonly caught in the artisanal fishery of Mazatlán. When a large sample of Pacific sharpnose sharks were observed scientists concluded that this type of shark was a "viviparous shark of small size which is born at an average length of 31 cm." Their gestation period is between ten and eleven months.
There was found to be no statistical relationship between the number of embryos to the average length as a result of scientific research. Specialists David Corro, Leonardo Castillo Geniz and J. Fernando Marquez-Farias, found that the sex ratio of this specific Shark is one to one with the average number of embryos per female, being around 7.4.
Wikipedia contributors, Pacific sharpnose shark; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T10:40:15.686333+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Rhizoprionodon longurio (Jordan & Gilbert, 1882)
- Name authority
- (Jordan & Gilbert, 1882)
- Common name
- Pacific sharpnose shark
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Elasmobranchii
- Order
- Carcharhiniformes
- Family
- Carcharhinidae
- Genus
- Rhizoprionodon
- 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
- parvphylumChondrichthyes
- classElasmobranchii
- subclassNeoselachii
- infraclassSelachii
- superorderGaleomorphi
- orderCarcharhiniformes
- familyCarcharhinidae Jordan & Evermann, 1896
- genusRhizoprionodon Whitley, 1929
- speciesRhizoprionodon longurio (Jordan & Gilbert, 1882)
Close classified relatives
These entries share the source’s genus, Rhizoprionodon. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| milk sharkRhizoprionodon acutus (Rüppell, 1837) | CarcharhinidaeChordata | Accepted speciesExtinction status not supplied |
| Caribbean sharpnose sharkRhizoprionodon porosus (Poey, 1861) | CarcharhinidaeChordata | Accepted speciesExtinction status not supplied |
| Rhizoprionodon lalandii (Valenciennes, 1839) | CarcharhinidaeChordata | Accepted speciesExtinction status not supplied |
| grey sharpnose sharkRhizoprionodon oligolinx Springer, 1964 | CarcharhinidaeChordata | Accepted speciesExtinction status not supplied |
| Rhizoprionodon taylori (Ogilby, 1915) | CarcharhinidaeChordata | Accepted speciesExtinction status not supplied |
| Atlantic sharpnose sharkRhizoprionodon terraenovae (Richardson, 1836) | CarcharhinidaeChordata | Accepted speciesExtinction status not supplied |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Scoliodon longurio (Jordan & Gilbert, 1882) (Jordan & Gilbert, 1882) | synonym |
| Carcharias longurio Jordan & Gilbert, 1882 Jordan & Gilbert, 1882 | synonym |
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.
- https://www.marinespecies.org/aphia.php?p=taxdetails&id=271327 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:4SDDH. Classification follows source parent identifiers. English common names may vary by region.