Staurocalyptus Explained

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,, 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 30–.

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

Further reading

• Ijima. Isao. Studies on the Hexactinellida. Contribution IV. (Rossellidæ). 東京帝國大學紀要: 理科 / The Journal of the College of Science, Imperial University of Tōkyō, Japan. 1904. 18. 7. 162–236. .
• Ijima. I.. The Genera and Species of Rosselidæ. 日本動物學彙報 / Annotationes Zoologicæ Japonenses. 1898. 2. 2. 52–54. .
• von Lendenfeld. Robert. Reports on the Scientific Results of the Expedition to the Eastern Tropical Pacific, in charge of Alexander Agassiz, by the U.S. Fish Commission Steamer 'Albatross', from October, 1904, to March, 1905, Lieut. Commander L.M. Garrett, U.S.N., Commanding, and of other expeditions of the 'Albatross', 1891–1899. XXIX. The Sponges. 3. Hexactinellida. Memoirs of the Museum of Comparative Zoölogy. 1915. 42. 112–119. .
• Okada. Yaichiro. Report on the hexactinellid sponges collected by the United States Fisheries steamer Albatross in the northwestern Pacific during the summer of 1906. Proceedings of the United States National Museum. 1932. 81. 2935. 99–102. 10.5479/si.00963801.81-2935.1 . free. 10088/16059.
• Book: Schulze. Franz Eilhard. Amerikanische Hexactinelliden nach dem Materiale der Albatross-Expedition. 1899. Gustav Fischer. Jena. 47–53. .