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Porifera name detailsPolymastia isidis var. simplex Hentschel, 1914
195655 (urn:lsid:marinespecies.org:taxname:195655)
unaccepted (status change)
Variety
marine,
recent only
Hentschel, E. (1914). Monaxone Kieselschwämme und Hornschwämme der Deutschen Südpolar-Expedition 1901-1903. <em>Deutsche Südpolar-Expedition.</em> 15 (1): 35-141, pls IV-VIII.
page(s): 47-48 [details] 
Type locality contained in East Antarctic Wilkes Land
type locality contained in East Antarctic Wilkes Land [details]
Status The variety was described by Hentschel from Gauss Station, Antarctica, 66.0333°S 89.6333°E, depth 385 m (syntypes ZMB...
Status The variety was described by Hentschel from Gauss Station, Antarctica, 66.0333°S 89.6333°E, depth 385 m (syntypes ZMB 4829). The differences of the syntype specimens with the typical variety described by Thiele (1905: 414, from Tierra del Fuego, Chile 54.3167°S 69.5°W, depth 19 m, holotype ZMB 3271) were declared by Burton (1932: 337–338) to be too minimal to keep the varieties as separate taxa. Plotkin et al. (2017: 1374–1378), however, discovered exotyles in the type of P. isidis, overlooked by Hentschel and also by Desqueyroux-Faúndez & Van Soest (1997: 421), who re-examined the type. Plotkin et al. transferred the type material of P. isidis to Sphaerotylus, but not the var. simplex as no exotyles were found in the syntype specimens of the variety (Plotkin et al. p. 1378, right hand column). Consequently, Van Soest (2024: 64) proposed to formally elevate the var. simplex to a valid species to be named Polymastia simplex Hentschel, 1914. [details] Taxonomy Plotkin et al. (2017: 1374-1378) transferred Polymastia isidis to Sphaerotylus because its type has exotyles, but the...
Taxonomy Plotkin et al. (2017: 1374-1378) transferred Polymastia isidis to Sphaerotylus because its type has exotyles, but the var.simplex has not. It is a Polymastia which needs to be designated as a valid species. [details]
de Voogd, N.J.; Alvarez, B.; Boury-Esnault, N.; Cárdenas, P.; Díaz, M.-C.; Dohrmann, M.; Downey, R.; Goodwin, C.; Hajdu, E.; Hooper, J.N.A.; Kelly, M.; Klautau, M.; Lim, S.C.; Manconi, R.; Morrow, C.; Pinheiro, U.; Pisera, A.B.; Ríos, P.; Rützler, K.; Schönberg, C.; Turner, T.; Vacelet, J.; van Soest, R.W.M.; Xavier, J. (2025). World Porifera Database. Polymastia isidis var. simplex Hentschel, 1914. Accessed at: https://marinespecies.org/porifera/porifera.php?p=taxdetails&id=195655 on 2025-04-26
Date action by
original description
Hentschel, E. (1914). Monaxone Kieselschwämme und Hornschwämme der Deutschen Südpolar-Expedition 1901-1903. <em>Deutsche Südpolar-Expedition.</em> 15 (1): 35-141, pls IV-VIII.
page(s): 47-48 [details] basis of record Van Soest, R.W.M. (2024). Correcting sponge names: nomenclatural update of lower taxa level Porifera. <em>Zootaxa.</em> 5398(1): 1-122., available online at https://doi.org/10.11646/zootaxa.5398.1.1 page(s): 64 [details] Available for editors  [request]additional source Plotkin, A.; Morrow, C.; Gerasimova, E.; Rapp, H.T. (2017). Polymastiidae (Demospongiae: Hadromerida) with ornamented exotyles: a review of morphological affinities and description of a new genus and three new species. <em>Journal of the Marine Biological Association of the United Kingdom.</em> 97 (6): 1351–1406., available online at https://doi.org/10.1017/S0025315416000655 page(s): 1378 [details] Available for editors [request]source of synonymy Koltun, V.M. (1964). Sponges of the Antarctic. 1 Tetraxonida and Cornacuspongida. Pp. 6-133, 443-448. <em>In: Pavlovskii, E.P., Andriyashev,A.P. & Ushakov, P.V. (Eds), Biological Reports of the Soviet Antarctic Expedition (1955-1958).</em> Akademya Nauk SSSR [English translation,1966, Israel Program for Scientific Translation]. page(s): 24-25 (=26) [details] Available for editors [request] Present Inaccurate Introduced: alien Containing type locality
Syntype ZMB 4829, geounit East Antarctic Wilkes Land [details]
From editor or global species database
Status The variety was described by Hentschel from Gauss Station, Antarctica, 66.0333°S 89.6333°E, depth 385 m (syntypes ZMB 4829). The differences of the syntype specimens with the typical variety described by Thiele (1905: 414, from Tierra del Fuego, Chile 54.3167°S 69.5°W, depth 19 m, holotype ZMB 3271) were declared by Burton (1932: 337–338) to be too minimal to keep the varieties as separate taxa. Plotkin et al. (2017: 1374–1378), however, discovered exotyles in the type of P. isidis, overlooked by Hentschel and also by Desqueyroux-Faúndez & Van Soest (1997: 421), who re-examined the type. Plotkin et al. transferred the type material of P. isidis to Sphaerotylus, but not the var. simplex as no exotyles were found in the syntype specimens of the variety (Plotkin et al. p. 1378, right hand column). Consequently, Van Soest (2024: 64) proposed to formally elevate the var. simplex to a valid species to be named Polymastia simplex Hentschel, 1914. [details]Taxonomy Plotkin et al. (2017: 1374-1378) transferred Polymastia isidis to Sphaerotylus because its type has exotyles, but the var.simplex has not. It is a Polymastia which needs to be designated as a valid species. [details] |