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NameMoraes, F.C.; Muricy, G. (2003). Taxonomy of Plakortis and Plakinastrella (Demospongiae: Plakinidae) from oceanic islands off north-eastern Brazil, with description of three new species. J. Mar. Biol. Ass. U.K. 83(2): 385-397.
SourceID8941
AuthorsMoraes, F.C.; Muricy, G.
Year2003
TitleTaxonomy of Plakortis and Plakinastrella (Demospongiae: Plakinidae) from oceanic islands off north-eastern Brazil, with description of three new species.
JournalJ. Mar. Biol. Ass. U.K.
Suffix83(2): 385-397
Type Publication
IMIS-ID34093
Full textAvailable for editors  PDF available [request]
AbstractThree species of Plakortis and one of Plakinastrella (Demospongiae: Homosclerophorida) collected mostly at oceanic islands o¡ north-eastern Brazil (Atol das Rocas, Fernando de Noronha and Sao Pedro e Sao Paulo Archipelago) are described, three of which are new to science: Plakortis angulospiculatus, P. insularis sp. nov., P. microrhabdifera sp. nov, and Plakinastrella microspiculifera sp. nov. External morphological characters such as colour, oscules, and consistency are su/cient to discriminate all the four species in the field, except Plakortis angulospiculatus from P. microrhabdifera. Internal features such as skeletal arrangement, shape and size of diods, and presence of microrhabds and calthrops are also important taxonomic characters for western Atlantic Plakortis and Plakinastrella. We consider as valid only ¢ve species of Plakortis in the western Atlantic: the three species described here plus P. halichondrioides and P. zyggompha. All these species except P. zyggompha have been recorded from Brazil. Plakinastrella has now two species in the western Atlantic, P. onkodes and P. microspiculifera sp. nov. The generic distinction between Plakortis and Plakinastrella is tenuous, based only on the presence of spicule size-classes and of deformed vs normal calthrops, and both genera need detailed revision.
Geographical
term
Western Atlantic warm temperate to tropical
Bibliographical
term
Systematics, Taxonomy
Taxonomic
term
Porifera
Taxa
(3)
Checked: verified by a taxonomic editorPlakinastrella microspiculifera Moraes & Muricy, 2003 (original description)
Checked: verified by a taxonomic editorPlakortis insularis Moraes & Muricy, 2003 (original description)
Checked: verified by a taxonomic editorPlakortis microrhabdifera Moraes & Muricy, 2003 (original description)
Distributions
(6)
Fernando de Noronha and Atoll das Rocas for Plakinastrella microspiculifera Moraes & Muricy, 2003
Fernando de Noronha and Atoll das Rocas for Plakinastrella microspiculifera Moraes & Muricy, 2003
Fernando de Noronha and Atoll das Rocas for Plakortis insularis Moraes & Muricy, 2003
Fernando de Noronha and Atoll das Rocas for Plakortis insularis Moraes & Muricy, 2003
Fernando de Noronha and Atoll das Rocas for Plakortis microrhabdifera Moraes & Muricy, 2003
Sao Pedro and Sao Paulo Islands for Plakinastrella microspiculifera Moraes & Muricy, 2003
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Date   action   by
2013-01-12 18:30:12Z  created  db_admin
2015-05-29 08:30:15Z  changed  Boury-Esnault, Nicole
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