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Superregnum : Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Megacohors: Osteoglossocephalai
Supercohors: Clupeocephala
Cohors: Euteleosteomorpha
Subcohors: Neoteleostei
Infracohors: Eurypterygia
Sectio: Ctenosquamata
Subsectio: Acanthomorphata
Divisio/Superordo: Acanthopterygii
Subdivisio: Percomorphaceae
Series: Ovalentaria
Superordo: Atherinomorphae
Ordo: Beloniformes
Subordo: Belonoidei
Superfamilia: Scomberesocoidea

Familia: Belonidae
Genus: Tylosurus
Species: T. acus – T. choram – T. crocodilus – T. gavialoides – T. pacificus – T. punctulatus

Tylosurus Cocco, 1833

Gender: masculine

Type species: Tylosurus cantrainei Cocco, 1833, by monotypy.

Cocco, A. (1833) Su di alcuni pesci de' mari di Messina. Giornale di Scienze Lettere e Arti per La Sicilia. 42(124): 9–21, 1 pl.


Tylosurus – Taxon details on Integrated Taxonomic Information System (ITIS).

Tylosurus is a genus of needlefish, one of ten in the family Belonidae. They are found worldwide in tropical and warmer temperate seas[2] and two species have been recorded as Lessepsian migrants in the eastern Mediterranean Sea.[3]

The seven currently recognized species in this genus are:[4]

Tylosurus acus (Lacepède, 1803)
T. a. acus (Lacépède, 1803) (Agujon needlefish)
T. a. imperialis (Rafinesque, 1810)
T. a. melanotus (Bleeker, 1850) (keel-jawed needlefish)
T. a. rafale Collette & Parin, 1970 (Atlantic agujon needlefish)
Tylosurus choram (Rüppell, 1837) (Red Sea houndfish)
Tylosurus crocodilus (Péron & Lesueur, 1821) (Houndfish)
Tylosurus fodiator D. S. Jordan & C. H. Gilbert, 1882 (Mexican needlefish)
Tylosurus gavialoides (Castelnau, 1873) (Stout long tom)
Tylosurus pacificus (Steindachner, 1876) (Pacific agujon needlefish)
Tylosurus punctulatus (Günther, 1872) (Spotted long tom)


The generic name Tylosurus is a compound created from the Greek words tylos meaning a "callus" and oura meaning "tail", this refers to the keel like structures on the caudal peduncle of these fish.[5]

Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Tylosurus". Catalog of Fishes. California Academy of Sciences. Retrieved 2 August 2019.
Bruce Baden Collette (2003). Family Belonidae Bonaparte 1832 needlefishes. Annotated Checklist of Fishes. Vol. 16. California Academy of Sciences. ISSN 1545-150X.
Barbara Zorica; Vanja Čikeš Keč; Armin Palloro; et al. (2016). "First record of agujon needlefish, Tylosurus acus imperialis (Rafinesque, 1810) (Osteichthyes: Belonidae) in the Croatian part of the Adriatic Sea". Acta Adriatica. 57 (1): 183–186.
Froese, Rainer and Pauly, Daniel, eds. (2019). Species of Tylosurus in FishBase. April 2019 version.
Christopher Scharpf; Kenneth J. Lazara (15 June 2019). "Order BELONIFORMES (Needlefishes)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 3 August 2019.

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