WoRMS name details
Hymedesmia unistellata var. aspera Topsent, 1904
195810 (urn:lsid:marinespecies.org:taxname:195810)
unaccepted (genus transfer and status change)
Variety
marine, brackish, fresh, terrestrial
recent only
Topsent, E. (1904). Spongiaires des Açores. <em>Résultats des campagnes scientifiques accomplies par le Prince Albert I. Monaco.</em> 25: 1-280, pls 1-18., available online at https://biodiversitylibrary.org/page/40603003
page(s): 112-113 [details]
page(s): 112-113 [details]
Type locality contained in Azores Canaries Madeira
type locality contained in Azores Canaries Madeira [details]
Status The variety was described by Topsent from Prince Albert 1er Monaco Cruises Stat. 899, Azores, 37.95°N 29.233°W, depth 200...
Status The variety was described by Topsent from Prince Albert 1er Monaco Cruises Stat. 899, Azores, 37.95°N 29.233°W, depth 200 m (type material in the Monaco Museum and slides in the Paris Museum). The variety was largely ignored by authors reporting on the sponges from the Azores (e.g. Topsent 1928; Boury-Esnault & Lopes 1985) and the Western Mediterranean (e.g. Pulitzer-Finali 1983). Differences with the typical variety of Hymedesmia unistellata Topsent (1892: xxvii, from Cap l’Abeille, Banyuls, S of France, 42.4778°N 3.1556°E, holotype MNHN DT 2446) noted by Topsent were longer and thicker tylostyles (up to 1400 μm vs up to 400 μm) and asters have spined rays vs. smooth. The latter difference is probably not tenable, but the tylostyle size difference was reason for Lehnert & Heimler (2001) to key out the present variety as a separate taxon. Furthermore, the thin encrustations of both the present and the typical variety differ as the present variety is hispid, whereas the typical variety is “almost” smooth (confirmed by Pulitzer 1983). The two major differences, the hispid surface and much longer and thicker tylostyles appear sufficient to indicate specific difference and accordingly Van Soest (2024: 78) proposed to recognize the present variety as Timea aspera (Topsent, 1904). [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. (2024). World Porifera Database. Hymedesmia unistellata var. aspera Topsent, 1904. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=195810 on 2024-04-18
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original description
Topsent, E. (1904). Spongiaires des Açores. <em>Résultats des campagnes scientifiques accomplies par le Prince Albert I. Monaco.</em> 25: 1-280, pls 1-18., available online at https://biodiversitylibrary.org/page/40603003
page(s): 112-113 [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): 78 [details] Available for editors
[request]
page(s): 112-113 [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): 78 [details] Available for editors
[request] 
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From editor or global species database
Status The variety was described by Topsent from Prince Albert 1er Monaco Cruises Stat. 899, Azores, 37.95°N 29.233°W, depth 200 m (type material in the Monaco Museum and slides in the Paris Museum). The variety was largely ignored by authors reporting on the sponges from the Azores (e.g. Topsent 1928; Boury-Esnault & Lopes 1985) and the Western Mediterranean (e.g. Pulitzer-Finali 1983). Differences with the typical variety of Hymedesmia unistellata Topsent (1892: xxvii, from Cap l’Abeille, Banyuls, S of France, 42.4778°N 3.1556°E, holotype MNHN DT 2446) noted by Topsent were longer and thicker tylostyles (up to 1400 μm vs up to 400 μm) and asters have spined rays vs. smooth. The latter difference is probably not tenable, but the tylostyle size difference was reason for Lehnert & Heimler (2001) to key out the present variety as a separate taxon. Furthermore, the thin encrustations of both the present and the typical variety differ as the present variety is hispid, whereas the typical variety is “almost” smooth (confirmed by Pulitzer 1983). The two major differences, the hispid surface and much longer and thicker tylostyles appear sufficient to indicate specific difference and accordingly Van Soest (2024: 78) proposed to recognize the present variety as Timea aspera (Topsent, 1904). [details]
