bigeye houndshark
Iago omanensis (Norman, 1939)
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 bigeye houndshark (Iago omanensis) is a species of houndshark, belonging to the family Triakidae. It is a small, placental viviparous shark that is found abundantly in the deep waters of the Gulf of Aqaba, Red Sea. It is described as brown or grey dorsally, with a lighter underside with darker tips on its dorsal and caudal fins. It is found in the deep waters of the continental shelves in the western Indian Ocean, from the Red Sea to southwestern India, between latitudes 30° N and 10° N, at depths between 110 and 2,200 m (360 and 7,220 ft). Its length can vary between males and females, males can be up to 37 cm (15 in), whilst females have been found as large as 58 cm (23 in). Its diet mainly consists of bony fish and squid/cuttlefish
Wikipedia contributors, Bigeye houndshark; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T06:38:33.475130+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Iago omanensis (Norman, 1939)
- Name authority
- (Norman, 1939)
- Common name
- bigeye houndshark
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Elasmobranchii
- Order
- Carcharhiniformes
- Family
- Triakidae
- Genus
- Iago
- 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
- subfamilyGaleorhininae Gill, 1862
- genusIago Compagno & Springer, 1971
- speciesIago omanensis (Norman, 1939)
Close classified relatives
These entries share the source’s genus, Iago. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Iago garricki Fourmanoir & Rivaton, 1979 | TriakidaeChordata | Accepted speciesExtinction status not supplied |
| Iago mangalorensis (Cubelio, Remya & Kurup, 2011) | TriakidaeChordata | 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 |
|---|---|
| Eugaleus omanensis Norman, 1939 Norman, 1939 | synonym |
| Galeorhinus omanensis (Norman, 1939) (Norman, 1939) | synonym |
| Jago omanensis (Norman, 1939) (Norman, 1939) | 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=220021 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:3P6TD. Classification follows source parent identifiers. English common names may vary by region.