WoRMS taxon details

Xestospongia topsenti Van Soest & Hooper, 2020

1424380  (urn:lsid:marinespecies.org:taxname:1424380)

accepted
Species
Petrosia variabilis sensu Topsent, 1892 (genus transfer abd misapplication)
marine, brackish, fresh, terrestrial
recent only
Van Soest, R. W. M.; Hooper, J. N. A.; Butler, P. J. (2020). Every sponge its own name: removing Porifera homonyms. <em>Zootaxa.</em> 4745(1): 1-93., available online at https://doi.org/10.11646/zootaxa.4745.1.1
page(s): 64 [details]  Available for editors  PDF available [request] 
Nomenclature We cite here Van Soest, Hooper & Butler's (2020) text explaining the case for this nomen novum.
Removal of homonymy...  
Nomenclature We cite here Van Soest, Hooper & Butler's (2020) text explaining the case for this nomen novum.
Removal of homonymy between Xestospongia variabilis (Ridley, 1884a) and Xestospongia variabilis (Topsent, 1892a).
1. Schmidtia variabilis Ridley, 1884a: 415 (type locality Torres Strait, North Australia). The genus Schmidtia Balsamo-Crivelli, 1863: 8 was erected for type species Reniera dura Nardo, 1834: 715. Until now it is considered a junior synonym of Schmidtia† Von Volborth, 1869: 208 (Brachiopoda from the Lower Silurian), based on Vosmaer’s (1885: 338) assertion that Von Volborth described the genus in 1860, three years before Balsamo-Crivelli, who described his genus in 1863. Vosmaer (l.c.) erected Petrosia as a replacement name, with the same type species, Reniera dura. However, we discovered that Von Volborth’s Schmidtia† was only described in 1869, not 1860, clearly after Balsamo-Crivelli’s Schmidtia. We have established that the junior genus name Petrosia nevertheless is eligible for conservation under ICZN Art. 23.9: the senior name Schmidtia Balsamo-Crivelli, 1863 has not been used for sponges after 1899 (ICZN Art. 23.9.1.1) and is thus a nomen oblitum, while the junior name Petrosia Vosmaer, 1885 has been used in more than 25 works by more than 10 authors in the immediately preceding 50 years encompassing a span of more than 10 years, and as such is a nomen protectum in the sense of ICZN Art. 23.9.1.2. Schmidtia variabilis was reassigned to Petrosia variabilis by Wilson (1904: 118), who also erected an East Pacific Petrosia variabilis var. crassa. Both are currently reassigned to the genus Xestospongia. P. variabilis var. crassa is a junior secondary homonym of North East Atlantic Petrosia crassa (Carter, 1876) (see above), but due to its reassignment to Xestospongia the homonymy is removed.
2. Petrosia variabilis sensu Topsent, 1892a: 68 (type locality Azores, North Atlantic). Recent revisions (e.g. De Weerdt & Van Soest 1986: 37) have established that Topsent’s specimens do not meet the conditions of Petrosia by having distinct size and shape categories of oxeas, and his record was reassigned to the genus Xestospongia. Since Topsent (1892a) did refer to Ridley’s Schmidtia variabilis his use of the name Petrosia variabilis is not a case of homonymy, but merely misapplication, i.e. Topsent assumed conspecificity with Ridley’s species, but in view of the widely different localities and depths this is not considered reasonable. In this case, we propose to rename the North Atlantic populations as Xestospongia topsenti nom. nov., with syntype in the Musée Océanographique de Monaco (MOM), 4 specimens from l’Hirondelle stations 229 and 234, off the Azores, North Atlantic, reg.nr. unknown, specimens not so far recognized in the collections of MOM (Michèle Bruni, in litteris).
3. Summary: Despite the fact that the senior synonym Schmidtia Balsano-Crivelli, 1863 is not a preoccupied genus name, we still support the junior replacement name Petrosia Vosmaer, 1885 to be valid as a nomen protectum (ICZN Art. 23.9.2). Xestospongia variabilis sensu Topsent, 1892a is a misapplied assignment, to be replaced by Xestospongia topsenti nom. nov., named after Émile Topsent. [details]
de Voogd, N.J.; Alvarez, B.; Boury-Esnault, N.; Carballo, J.L.; Cárdenas, P.; Díaz, M.-C.; Dohrmann, M.; Downey, R.; Hajdu, E.; Hooper, J.N.A.; Kelly, M.; Klautau, M.; Manconi, R.; Morrow, C.C. Pisera, A.B.; Ríos, P.; Rützler, K.; Schönberg, C.; Vacelet, J.; van Soest, R.W.M. (2021). World Porifera Database. Xestospongia topsenti Van Soest & Hooper, 2020. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1424380 on 2021-11-27
Date
action
by
2020-03-09 13:29:20Z
created
2021-03-15 09:46:14Z
changed

Creative Commons License The webpage text is licensed under a Creative Commons Attribution 4.0 License


original description Van Soest, R. W. M.; Hooper, J. N. A.; Butler, P. J. (2020). Every sponge its own name: removing Porifera homonyms. <em>Zootaxa.</em> 4745(1): 1-93., available online at https://doi.org/10.11646/zootaxa.4745.1.1
page(s): 64 [details]  Available for editors  PDF available [request] 

original description  (of Petrosia variabilis sensu Topsent, 1892) Topsent, E. (1892). Contribution à l'étude des Spongiaires de l'Atlantique Nord (Golfe de Gascogne, Terre-Neuve, Açores). <em>Résultats des campagnes scientifiques accomplies par le Prince Albert I. Monaco.</em> 2: 1-165, pls I-XI.
page(s): 68-69; note: Topsent has indicated Ridley as author of this species [details]  OpenAccess publication 
 
 Present  Inaccurate  Introduced: alien  Containing type locality 
 

From editor or global species database
Nomenclature We cite here Van Soest, Hooper & Butler's (2020) text explaining the case for this nomen novum.
Removal of homonymy between Xestospongia variabilis (Ridley, 1884a) and Xestospongia variabilis (Topsent, 1892a).
1. Schmidtia variabilis Ridley, 1884a: 415 (type locality Torres Strait, North Australia). The genus Schmidtia Balsamo-Crivelli, 1863: 8 was erected for type species Reniera dura Nardo, 1834: 715. Until now it is considered a junior synonym of Schmidtia† Von Volborth, 1869: 208 (Brachiopoda from the Lower Silurian), based on Vosmaer’s (1885: 338) assertion that Von Volborth described the genus in 1860, three years before Balsamo-Crivelli, who described his genus in 1863. Vosmaer (l.c.) erected Petrosia as a replacement name, with the same type species, Reniera dura. However, we discovered that Von Volborth’s Schmidtia† was only described in 1869, not 1860, clearly after Balsamo-Crivelli’s Schmidtia. We have established that the junior genus name Petrosia nevertheless is eligible for conservation under ICZN Art. 23.9: the senior name Schmidtia Balsamo-Crivelli, 1863 has not been used for sponges after 1899 (ICZN Art. 23.9.1.1) and is thus a nomen oblitum, while the junior name Petrosia Vosmaer, 1885 has been used in more than 25 works by more than 10 authors in the immediately preceding 50 years encompassing a span of more than 10 years, and as such is a nomen protectum in the sense of ICZN Art. 23.9.1.2. Schmidtia variabilis was reassigned to Petrosia variabilis by Wilson (1904: 118), who also erected an East Pacific Petrosia variabilis var. crassa. Both are currently reassigned to the genus Xestospongia. P. variabilis var. crassa is a junior secondary homonym of North East Atlantic Petrosia crassa (Carter, 1876) (see above), but due to its reassignment to Xestospongia the homonymy is removed.
2. Petrosia variabilis sensu Topsent, 1892a: 68 (type locality Azores, North Atlantic). Recent revisions (e.g. De Weerdt & Van Soest 1986: 37) have established that Topsent’s specimens do not meet the conditions of Petrosia by having distinct size and shape categories of oxeas, and his record was reassigned to the genus Xestospongia. Since Topsent (1892a) did refer to Ridley’s Schmidtia variabilis his use of the name Petrosia variabilis is not a case of homonymy, but merely misapplication, i.e. Topsent assumed conspecificity with Ridley’s species, but in view of the widely different localities and depths this is not considered reasonable. In this case, we propose to rename the North Atlantic populations as Xestospongia topsenti nom. nov., with syntype in the Musée Océanographique de Monaco (MOM), 4 specimens from l’Hirondelle stations 229 and 234, off the Azores, North Atlantic, reg.nr. unknown, specimens not so far recognized in the collections of MOM (Michèle Bruni, in litteris).
3. Summary: Despite the fact that the senior synonym Schmidtia Balsano-Crivelli, 1863 is not a preoccupied genus name, we still support the junior replacement name Petrosia Vosmaer, 1885 to be valid as a nomen protectum (ICZN Art. 23.9.2). Xestospongia variabilis sensu Topsent, 1892a is a misapplied assignment, to be replaced by Xestospongia topsenti nom. nov., named after Émile Topsent. [details]
Topsent (1902, pl. 2)
 Topsent (1902, pl. 2)
[image from synonym]