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Taxonomy, reproduction and ecology of new and known Red Sea sponges
Ilan, M.; Gugel, J.; Van Soest, R.W.M. (2004). Taxonomy, reproduction and ecology of new and known Red Sea sponges. Sarsia 89(6): 388-410
In: Sarsia. University of Bergen. Universitetsforlaget: Bergen. ISSN 0036-4827, more
Peer reviewed article  

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Keywords
    Animal physiology; Marine invertebrates; New species; Oviparity; Reproduction; Taxonomy; Viviparity; Callyspongia paralia Ilan, Gugel & van Soest, 2004 [WoRMS]; Dactylochalina viridis Keller, 1889 [WoRMS]; Hemimycale arabica Ilan, Gugel & van Soest, 2004 [WoRMS]; Niphates rowi Ilan, Gugel & van Soest, 2004 [WoRMS]; Petrosia elephantotus Ilan, Gugel & van Soest, 2004 [WoRMS]; Rhabderemia batatas Ilan, Gugel & van Soest, 2004 [WoRMS]; Siphonochalina siphonella Lévi, 1965 [WoRMS]; Theonella conica (Kieschnick, 1896) [WoRMS]; Theonella swinhoei Gray, 1868 [WoRMS]; Topsentia aqabaensis Ilan, Gugel & van Soest, 2004 [WoRMS]; Marine

Authors  Top 
  • Ilan, M.
  • Gugel, J.
  • Van Soest, R.W.M., more

Abstract
    Ten of the most abundant sponge species from the northern Red Sea were studied. Six of them are new species that are described here: Callyspongia paralia, Hemimycale arabica, Rhabderemia batatas, Niphates rowi, Petrosia elephantotus, and Topsentia aqabaensis. An additional species has been reassigned and renamed: Dactylochalina viridis Keller, 1889 was assigned to Amphimedon and renamed A. chloros to avoid homonymy with A. viridis Duch. & Mich. Callyspongia paralia and N. rowi were found restricted to shallow water (<4 m), whereas the other species were also detected in deeper water. The reproduction of most of these new species as well as of Theonella swinhoei Gray, 1868, and Theonella conica was determined based on histological examination of their reproductive elements (oocytes, embryos and larvae). Theonella swinhoei, T. Conica and T. Aqabaensis were shown to be oviparous, whereas H. arabica, A. chloros, and Siphonochalina siphonella are viviparous, as is also known for N. rowi and C. paralia.

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