Filospermoidea is an order within the phylum
Gnathostomulida
Gnathostomulids, or jaw worms, are a small phylum of nearly microscopic marine animals. They inhabit sand and mud beneath shallow coastal waters and can survive in relatively anoxic environments. They were first recognised and described in 1956.
...
. Filospermoids are generally longer than gnathostomulids in the order
Bursovaginoidea, and have an elongate
rostrum. It lives in North America, off the coasts of the southern United States and the Caribbean, primarily in the
Gulf of Mexico
The Gulf of Mexico ( es, Golfo de México) is an ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United S ...
, as well as in southeastern Denmark.
Classification
The order Filospermoidea contains 29 species in 2 families and 3 genera.
* Family
Haplognathiidae
** Genus ''
Haplognathia
''Haplognathia'' is a genus of worms belonging to the family Haplognathiidae
Haplognathiidae is a family of worms belonging to the order Filospermoidea
Filospermoidea is an order within the phylum Gnathostomulida. Filospermoids are generally ...
''
*** ''
Haplognathia asymmetrica
''Haplognathia'' is a genus of worms belonging to the family Haplognathiidae
Haplognathiidae is a family of worms belonging to the order Filospermoidea
Filospermoidea is an order within the phylum Gnathostomulida. Filospermoids are generally ...
''
*** ''
Haplognathia belizensis
''Haplognathia'' is a genus of worms belonging to the family Haplognathiidae.
The species of this genus are found in Europe, Northern Africa, Pacific Ocean.
Species:
*''Haplognathia asymmetrica
''Haplognathia'' is a genus of worms belongin ...
''
*** ''
Haplognathia filum
''Haplognathia'' is a genus of worms belonging to the family Haplognathiidae.
The species of this genus are found in Europe, Northern Africa, Pacific Ocean.
Species:
*''Haplognathia asymmetrica''
*''Haplognathia belizensis
''Haplognathia'' ...
'' (sometimes in ''Pterognathia'')
*** ''
Haplognathia gubbarnorum
''Haplognathia'' is a genus of worms belonging to the family Haplognathiidae.
The species of this genus are found in Europe, Northern Africa, Pacific Ocean.
Species:
*''Haplognathia asymmetrica''
*''Haplognathia belizensis''
*''Haplognathia ...
'' (sometimes in ''Pterognathia'')
*** ''
Haplognathia lunulifera
''Haplognathia'' is a genus of worms belonging to the family Haplognathiidae.
The species of this genus are found in Europe, Northern Africa, Pacific Ocean.
Species:
*''Haplognathia asymmetrica''
*''Haplognathia belizensis''
*''Haplognathia ...
'' (sometimes in ''Pterognathia'')
*** ''
Haplognathia rosea
''Haplognathia'' is a genus of worms belonging to the family Haplognathiidae.
The species of this genus are found in Europe, Northern Africa, Pacific Ocean.
Species:
*''Haplognathia asymmetrica''
*''Haplognathia belizensis''
*''Haplognathia ...
'' (sometimes in ''Pterognathia'')
*** ''
Haplognathia ruberrima
''Haplognathia'' is a genus of worms belonging to the family Haplognathiidae.
The species of this genus are found in Europe, Northern Africa, Pacific Ocean.
Species:
*''Haplognathia asymmetrica''
*''Haplognathia belizensis''
*''Haplognathia ...
'' (sometimes in ''Pterognathia'')
*** ''
Haplognathia rubromaculata
''Haplognathia'' is a genus of worms belonging to the family Haplognathiidae.
The species of this genus are found in Europe, Northern Africa, Pacific Ocean.
Species:
*''Haplognathia asymmetrica''
*''Haplognathia belizensis''
*''Haplognathia ...
'' (sometimes in ''Pterognathia'')
*** ''
Haplognathia rufa
''Haplognathia'' is a genus of worms belonging to the family Haplognathiidae.
The species of this genus are found in Europe, Northern Africa, Pacific Ocean.
Species:
*''Haplognathia asymmetrica''
*''Haplognathia belizensis''
*''Haplognathia ...
''
*** ''
Haplognathia simplex
''Haplognathia'' is a genus of worms belonging to the family Haplognathiidae.
The species of this genus are found in Europe, Northern Africa, Pacific Ocean.
Species:
*''Haplognathia asymmetrica''
*''Haplognathia belizensis''
*''Haplognathia ...
'' (sometimes in ''Pterognathia'')
* Family
Pterognathiidae
** Genus ''
Cosmognathia
''Cosmognathia'' is a genus of worms belonging to the family Pterognathiidae
Pterognathiidae is a family of worms belonging to the order Filospermoidea
Filospermoidea is an order within the phylum Gnathostomulida. Filospermoids are generally ...
''
*** ''
Cosmognathia aquila
''Cosmognathia'' is a genus of worms belonging to the family Pterognathiidae.
The species of this genus are found in Northern Australia.
Species:
*'' Cosmognathia aquila''
*'' Cosmognathia arcus''
*'' Cosmognathia bastillae''
*''Cosmognathia ...
''
*** ''
Cosmognathia arcus
''Cosmognathia'' is a genus of worms belonging to the family Pterognathiidae.
The species of this genus are found in Northern Australia.
Species:
*''Cosmognathia aquila''
*'' Cosmognathia arcus''
*'' Cosmognathia bastillae''
*''Cosmognathia ...
''
*** ''
Cosmognathia bastillae
''Cosmognathia'' is a genus of worms belonging to the family Pterognathiidae.
The species of this genus are found in Northern Australia.
Species:
*''Cosmognathia aquila''
*''Cosmognathia arcus''
*'' Cosmognathia bastillae''
*''Cosmognathia m ...
''
*** ''
Cosmognathia manubrium
''Cosmognathia'' is a genus of worms belonging to the family Pterognathiidae
Pterognathiidae is a family of worms belonging to the order Filospermoidea
Filospermoidea is an order within the phylum Gnathostomulida. Filospermoids are generally ...
''
** Genus ''
Pterognathia
''Pterognathia'' is a genus of worms belonging to the family Pterognathiidae.
The genus has almost cosmopolitan distribution.
Species
Species:
*''Pterognathia alcicornis''
*''Pterognathia atrox''
*''Pterognathia crocodilus''
References ''
*** ''
Pterognathia alcicornis
''Pterognathia'' is a genus of worms belonging to the family Pterognathiidae.
The genus has almost cosmopolitan distribution.
Species
Species:
*'' Pterognathia alcicornis''
*''Pterognathia atrox''
*''Pterognathia crocodilus
''Pterognathia ...
''
*** ''
Pterognathia atrox
''Pterognathia'' is a genus of worms belonging to the family Pterognathiidae.
The genus has almost cosmopolitan distribution.
Species
Species:
*'' Pterognathia alcicornis''
*'' Pterognathia atrox''
*''Pterognathia crocodilus
''Pterognathi ...
''
*** ''
Pterognathia crocodilus
''Pterognathia'' is a genus of worms belonging to the family Pterognathiidae.
The genus has almost cosmopolitan distribution
In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of t ...
''
*** ''
Pterognathia ctenifera
''Pterognathia'' is a genus of worms belonging to the family Pterognathiidae.
The genus has almost cosmopolitan distribution
In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of t ...
''
*** ''
Pterognathia hawaiiensis
''Pterognathia'' is a genus of worms belonging to the family Pterognathiidae.
The genus has almost cosmopolitan distribution
In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of t ...
''
*** ''
Pterognathia grandis
''Pterognathia'' is a genus of worms belonging to the family Pterognathiidae.
The genus has almost cosmopolitan distribution
In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of t ...
''
*** ''
Pterognathia meixneri
''Pterognathia'' is a genus of worms belonging to the family Pterognathiidae.
The genus has almost cosmopolitan distribution
In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of t ...
''
*** ''
Pterognathia portobello''
*** ''
Pterognathia pygmaea''
*** ''
Pterognathia sica''
*** ''
Pterognathia sorex''
*** ''
Pterognathia swedmarki''
*** ''
Pterognathia tuatara
''Pterognathia'' is a genus of worms belonging to the family Pterognathiidae.
The genus has almost cosmopolitan distribution.
Species
Species:
*''Pterognathia alcicornis''
*''Pterognathia atrox''
*''Pterognathia crocodilus
''Pterognathia' ...
''
*** ''
Pterognathia ugera
''Pterognathia'' is a genus of worms belonging to the family Pterognathiidae.
The genus has almost cosmopolitan distribution.
Species
Species:
*''Pterognathia alcicornis''
*''Pterognathia atrox''
*''Pterognathia crocodilus
''Pterognathia' ...
''
*** ''
Pterognathia vilii
''Pterognathia'' is a genus of worms belonging to the family Pterognathiidae.
The genus has almost cosmopolitan distribution.
Species
Species:
*''Pterognathia alcicornis''
*''Pterognathia atrox''
*''Pterognathia crocodilus
''Pterognathia' ...
''
References
Gnathostomulida
Marine animals
Invertebrates of North America
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