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Porifera source details
Vacelet, J.; Cárdenas, P. (2018). When is an aster not an aster? A new deep-sea Discorhabdella (Demospongiae, Poecilosclerida) with asters, from the Mozambique Channel. in: Deep Sea and Cave Sponges, Klautau, M., Pérez, T., Cárdenas, P. & de Voogd, N. (eds). Zootaxa. 4466 (1): 197-204.
307078
10.11646/zootaxa.4466.1.15 [view]
Vacelet, J.; Cárdenas, P.
2018
When is an aster not an aster? A new deep-sea <i>Discorhabdella</i> (Demospongiae, Poecilosclerida) with asters, from the Mozambique Channel. <i>in</i>: Deep Sea and Cave Sponges, Klautau, M., Pérez, T., Cárdenas, P. & de Voogd, N. (eds)
Zootaxa
4466 (1): 197-204
Publication
Available for editors
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Discorhabdella pseudaster n. sp. is an incrusting sponge from the upper bathyal zone of the ‘Banc du Geyser’, north of Madagascar, Mozambique Channel. This new species is described only from a single specimen but it is remarkable by the presence of spicules similar to euasters, a type of microsclere unknown in Poecilosclerida. These spicules are in fact a new example of homoplasy, being derivatives of the typical Discorhabdella pseudoastrose acanthostyles, which are here reduced to the aster-like tyles. The isochelae with a large lamella on the shaft are also quite unique in Poeciloclerida.
Indian Ocean
Systematics, Taxonomy
Date action by
Discorhabdella pseudaster Vacelet & Cárdenas, 2018 (original description)
Western and Northern Madagascar for Discorhabdella pseudaster Vacelet & Cárdenas, 2018
Holotype MNHN IP-2015-1083, geounit Western and Northern Madagascar, identified as Discorhabdella pseudaster Vacelet & Cárdenas, 2018
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