Mustelus whitneyi Chirichigno F., 1973
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 humpback smooth-hound (Mustelus whitneyi) is a species of houndshark and a part of the family Triakidae. The most noticeable difference between Mustelus whitneyi and its relatives, is the slight curvature, causing a "humpback" appearance located in front of its primary dorsal fin. It is found on the continental shelves of the tropical southeast Pacific, from Peru to southern Chile, between latitudes 3° S and 54° S. These sharks are demersal feeders but range from depths between 15 and 210 metres (50 and 690 ft). Humpback smooth-hound sharks are small sharks, reaching a maximum size of 118 cm (46 in) in total length. Mustelus whitneyi typically feed on teleosts and invertebrates in the benthic and pelagic ecosystems, most important prey being the peruvian anchovy. These humpback smooth-hound sharks are placental viviparious sharks, meaning that the embryo forms inside the mother tethered by the placental cord. The threats currently causing population decline to humpback smooth-hound sharks surround issues with local fisheries and management.
Wikipedia contributors, Humpback smooth-hound; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T23:14:58.691079+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Mustelus whitneyi Chirichigno F., 1973
- Name authority
- Chirichigno F., 1973
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Elasmobranchii
- Order
- Carcharhiniformes
- Family
- Triakidae
- Genus
- Mustelus
- 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
- familyTriakidae Gray, 1851
- subfamilyTriakinae Gray, 1851
- genusMustelus Linck, 1790
- speciesMustelus whitneyi Chirichigno F., 1973
Close classified relatives
These entries share the source’s genus, Mustelus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Mustelus antarcticus Günther, 1870 | TriakidaeChordata | Accepted speciesExtinction status not supplied |
| gray smoothhoundMustelus californicus Gill, 1864 | TriakidaeChordata | Accepted speciesExtinction status not supplied |
| smooth dogfishMustelus canis (Mitchill, 1815) | TriakidaeChordata | Accepted speciesExtinction status not supplied |
| Mustelus fasciatus (Garman, 1913) | TriakidaeChordata | Accepted speciesExtinction status not supplied |
| Mustelus lenticulatus Phillipps, 1932 | TriakidaeChordata | Accepted speciesExtinction status not supplied |
| Mustelus mento Cope, 1877 | TriakidaeChordata | Accepted speciesExtinction status not supplied |
| smooth houndMustelus mustelus (Linnaeus, 1758) | TriakidaeChordata | Accepted speciesExtinction status not supplied |
| Florida smoothhoundMustelus norrisi Springer, 1939 | TriakidaeChordata | Accepted speciesExtinction status not supplied |
| whitespotted smooth-houndMustelus palumbes Smith, 1957 | TriakidaeChordata | Accepted speciesExtinction status not supplied |
| blackspotted smoothhoundMustelus punctulatus Risso, 1827 | TriakidaeChordata | Accepted speciesExtinction status not supplied |
| Mustelus ravidus White & Last, 2006 | TriakidaeChordata | Accepted speciesExtinction status not supplied |
| Mustelus stevensi White & Last, 2008 | TriakidaeChordata | 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.
- Chirichigno, F. N. (1973). Nuevas especies de peces de los generos Mustelus (Fam. Triakidae), Raja (Fam. Rajidae) y Schedophilus (Fam. Centrolophidae). Informes, Especiales, Instituto Del Mar Del Perú. Callao, No. 42: 1–40. [English summary.]. 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:73R2M. Classification follows source parent identifiers. English common names may vary by region.