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''Staurocalyptus'' is a genus of
Ijima circumscribed ''Staurocalyptus'' as a genus in the family Rossellidae. His initial taxonomy included three newly described species and two transferred from ''Rhabdocalyptus''. Ijimi did not designate a
sponge
Sponges or sea sponges are primarily marine invertebrates of the animal phylum Porifera (; meaning 'pore bearer'), a basal clade and a sister taxon of the diploblasts. They are sessile filter feeders that are bound to the seabed, and a ...
. It was circumscribed in 1897 by Isao Ijima.
Taxonomy
Ijima circumscribed ''Staurocalyptus'' as a genus in the family Rossellidae. His initial taxonomy included three newly described species and two transferred from ''Rhabdocalyptus''. Ijimi did not designate a type species
In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ...
; in 1967 V. M. Koltun designated ''Rhabdocalyptus dowlingi'' as the type species. A 2002 revision of Rossellidae by K. R. Tabachnick demoted ''Staurocalyptus'' to be a subgenus of '' Acanthascus'' and designated a new type species
In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ...
: ''Staurocalyptus glaber'' . However, , WoRMS
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive catalogue and list of names of marine organisms.
Content
The content of the registry is edited and maintained by scien ...
still classifies ''Staurocalyptus'' as a genus and follows Koltun's type species designation, not that of Tabachnick.
Distribution
Its species are found in the Pacific Ocean, at a depth of .Species
, WoRMS recognizes the following seventeen species: * '' Staurocalyptus affinis'' * '' Staurocalyptus celebesianus'' * '' Staurocalyptus dowlingi'' * '' Staurocalyptus entacanthus'' * '' Staurocalyptus fasciculatus'' * '' Staurocalyptus fuca'' * '' Staurocalyptus glaber'' * '' Staurocalyptus hamatus'' * '' Staurocalyptus heteractinus'' * '' Staurocalyptus microchetus'' * '' Staurocalyptus pleorhaphides'' * '' Staurocalyptus psilosus'' * '' Staurocalyptus roeperi'' * '' Staurocalyptus rugocruciatus'' * '' Staurocalyptus solidus'' * '' Staurocalyptus tubulosus'' * '' Staurocalyptus tylotus''References
Further reading
* * * * * Hexactinellida Hexactinellida genera {{sponge-stub