Fish Identification

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Non-fish Identification: Find Species

Family: Gnathostomulidae (See list of species below)

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Total number of spines in dorsal and anal fins (optional)

23 species with fin ray counts including ? spines in dorsal and ? in anal fins (see list below)

No picture found Corculognathia apennata []	No picture found Gnathostomula algreti []	No picture found Gnathostomula arabica []
No picture found Gnathostomula armata []	No picture found Gnathostomula axi []	No picture found Gnathostomula brunidens []
No picture found Gnathostomula costata []	No picture found Gnathostomula jenneri []	No picture found Gnathostomula karlingi []
No picture found Gnathostomula maldivarum []	No picture found Gnathostomula maorica []	No picture found Gnathostomula mediocristata []
No picture found Gnathostomula mediterranea []	No picture found Gnathostomula microstyla []	No picture found Gnathostomula murmanica []
No picture found Gnathostomula nigrostoma []	No picture found Gnathostomula paradoxa []	No picture found Gnathostomula peregrina []
No picture found Gnathostomula raji []	No picture found Gnathostomula salotae []	No picture found Gnathostomula uncinata []
No picture found Ratugnathia makuluvae []	No picture found Semaeognathia sterreri []

23 Species of Family Gnathostomulidae
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Sort by: Species Length

Scientific Name	Distribution	Max. Length (cm)
Corculognathia apennata	Southeast Pacific
Gnathostomula algreti	Eastern Central Pacific
Gnathostomula arabica	Western Indian Ocean
Gnathostomula armata	Northwest Atlantic
Gnathostomula axi	Western Indian Ocean, Wes	0.1 TL
Gnathostomula brunidens	Northwest Atlantic
Gnathostomula costata	Southeast Pacific
Gnathostomula jenneri	Northwest Atlantic
Gnathostomula karlingi	Eastern Central Pacific
Gnathostomula maldivarum	Eastern Central Pacific,
Gnathostomula maorica	Southwest Pacific
Gnathostomula mediocristata	Western Central Atlantic
Gnathostomula mediterranea	Northwest Atlantic and th
Gnathostomula microstyla	Northwest Atlantic
Gnathostomula murmanica	Northeast Atlantic and th
Gnathostomula nigrostoma	Northwest Atlantic
Gnathostomula paradoxa	Northeast Atlantic and th
Gnathostomula peregrina	Western Central Atlantic.
Gnathostomula raji	Western Central Pacific
Gnathostomula salotae	Pacific Ocean
Gnathostomula uncinata	Northwest Atlantic.
Ratugnathia makuluvae	Western Central Pacific
Semaeognathia sterreri	Western Atlantic

Other identification tools in SeaLifeBase

Quick Identification

Identification keys

Identification by morphometrics

Identification by pictures:

          If you already know the Family, go to Search SeaLifeBase, select Family and click on 'Identification by pictures' to display all available pictures in SeaLifeBase for the family.

          If you already know the Country, go to Search SeaLifeBase, select Country and click on 'Identification by pictures' to display all available pictures in SeaLifeBase for the country.

          If you already know the Ecosystem, go to Search SeaLifeBase, select Ecosystem and click on 'Identification by pictures' to display all available pictures in SeaLifeBase for the ecosystem.