2021/06/30 by Danilo S. Almeida, JOANA SANDES, Carmen Regina Parisotto Guimarães +1 · 1 citation
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · Earth and Planetary Sciences · #Fish Biology and Ecology Studies #Marine Sponges and Natural Products #Marine Biology and Ecology Research #Biology #Sensu #Sponge spicule #Holotype #Zoology #Taxonomy (biology) #Nomenclature #Anatomy #Genus
paper · pdf · doi:10.11646/zootaxa.4995.2.4
openalex publication_date 2021/06/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11
In this contribution we revise the type specimens of Geodia tylastra, Rhabdastrella fibrosa and Geodia corticostylifera, adding new photographs of preserved specimens, skeleton sections, and scanning electron micrographs of the spicules. We demonstrate that the three species are synonyms, with priority to the older name G. tylastra Boury-Esnault, 1973. We also show that Rhabdastrella fibrosa sensu Van Soest (2017) differs from the holotype in spicule composition and is here given a new name, Rhabdastrella vansoesti sp. nov. In addition, we describe a new species of Geodia, G. polytriaena sp. nov., and new records of G. glariosa and G. tylastra from Sergipe State, in the Northeast Brazilian coast. With the description of Geodia polytriaena sp. nov. and the synonymyzation of G. corticostylifera, 20 species of Geodia are now known in the Tropical Western Atlantic Ocean.