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Porifera name detailsRhabdoploca curvispiculifera var. geniculata (Topsent, 1892)
1572307 (urn:lsid:marinespecies.org:taxname:1572307)
unaccepted (genus transfer and status change)
Variety
marine,
recent only
(of Hymeraphia geniculata 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): 115 [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. Rhabdoploca curvispiculifera var. geniculata (Topsent, 1892). Accessed at: https://marinespecies.org/porifera/porifera.php?p=taxdetails&id=1572307 on 2025-05-31
Date action by
original description
(of Hymeraphia geniculata 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): 115 [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): 52 [details] Available for editors  [request]new combination reference Topsent, E. (1928). Spongiaires de l'Atlantique et de la Méditerranée provenant des croisières du Prince Albert ler de Monaco. [Atlantic and Mediterranean sponges from the cruises of Prince Albert I of Monaco]. <em>Résultats des campagnes scientifiques accomplies par le Prince Albert I. Monaco.</em> 74:1-376, pls I-XI. page(s): 43 [details] From editor or global species database
Synonymy The variety was originally described by Topsent as Hymeraphia geniculata from the Azores, Prince Albert 1er Cruises Stat. 247, 38.3917°N 30.3389°W, 318 m depth (holotype in MOM, a slide of the type in MNHN reg. nr. DT 944). Topsent changed his mind several times and decided ultimately to reassign H. geniculata to Rhabdoploca curvispiculifera (Carter, 1880: 43 as Microciona, from the Gulf of Mannar, Sri Lanka, approximate coordinates 9°N 79°E, type not identified) as a distinct Atlantic variety. Alvarez & Van Soest (2002) transferred Carter’s (1880) Rhabdoploca curvispiculifera to Cerbaris Topsent, 1898, and by this implicitly transferred the var. geniculata also to that genus. A difference between Carter’s curvispiculifer and Topsent’s geniculatus is found in the small tylostyles, which are entirely smooth in Carter’s typical variety and entirely spined in Topsent’s variety. Other skeletal characters of the two are strikingly similar: the length of the (rhabdo)styles, in Carter’s species 207 x 13, and Topsent’s species 90 200 x 10–12 μm. The ‘toxostrongyles’ of both species are on average approximately the same (207 x 9 μm vs 125–195 x 6–8 μm, respectively). Van Soest (2024: 52) agreed with Topsent (1928) that geniculatus has a small but distinct difference, and to acknowledge the geographic separation he proposed to elevate the variety to the rank of species as Cerbaris geniculatus (Topsent, 1892). [details]
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