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Porifera source details
Nascimento, E.; Pinheiro, U. (2023). A new species of Acarnus Gray, 1867 (Porifera, Demospongiae, Acarnidae) from NE Brazil. Zootaxa. 5293 (3): 521-540.
451322
10.11646/zootaxa.5293.3.5 [view]
Nascimento, E.; Pinheiro, U.
2023
A new species of <i>Acarnus</i> Gray, 1867 (Porifera, Demospongiae, Acarnidae) from NE Brazil
Zootaxa
5293 (3): 521-540
Publication
Available for editors
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The synapomorphic character of the genus Acarnus Gray, 1867 is the presence of the cladotylote spicule. Acarnus has 27 valid species worldwide, including five species reported from the Brazilian coast: A. innominatus Gray, 1867, A. nicoleae van Soest, Hooper & Hiemstra, 1991, A. souriei (Lévi, 1952), A. radovani (Boury-Esnault, 1973) and A. toxeata Boury-Esnault, 1973. Here we will describe A. microxeatus sp. nov., whose diagnosis is the presence of smooth microxeas and acanthoxeas, new characters for the genus. We also provide a complete characterization of the skeletal architecture and spicule morphology of A. toxeata, with scanning electron microscopy image (SEM) of the spicule set.
South West Atlantic ( =only warm temperate; cold temperate see *SUB)
Systematics, Taxonomy
Date action by
Acarnus innominatus Gray, 1867 (basis of record)
Acarnus microxeatus Nascimento & Pinheiro, 2023 (original description) Acarnus toxeata Boury-Esnault, 1973 (basis of record)
Brazilian Exclusive Economic Zone for Acarnus microxeatus Nascimento & Pinheiro, 2023
Eastern Brazil for Acarnus toxeata Boury-Esnault, 1973 Eastern Brazil for Acarnus toxeata Boury-Esnault, 1973 Northeastern Brazil for Acarnus innominatus Gray, 1867 Northeastern Brazil for Acarnus innominatus Gray, 1867 Northeastern Brazil for Acarnus microxeatus Nascimento & Pinheiro, 2023 Northeastern Brazil for Acarnus microxeatus Nascimento & Pinheiro, 2023
Holotype UFPE POR 2986, geounit Northeastern Brazil, identified as Acarnus microxeatus Nascimento & Pinheiro, 2023
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