Staurocalyptus
Staurocalyptus is a genus of sponge. 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 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: Staurocalyptus glaber. However, as of 2017, WoRMS 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''