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NameDomingos, C.; Moraes, F.; Muricy, G. 2013. Four new species of Plakinidae (Porifera: Homoscleromorpha) from Brazil. Zootaxa 3718: 530-544.
DOI10.11646/zootaxa.3718.6.2
Type Publication
Full textAvailable for editors  PDF available [request]
AbstractSeven species of Plakinidae are currently known from Brazil, belonging to genera Plakina(P. trilopha), Plakinastrella (P.microspiculifera, P. onkodes), and Plakortis (P. angulospiculatus, P. halichondrioides, P. insularis, and P. microrhabdifera). In this study we describe four new species of the genera Plakinastrella and Plakortis, increasing the number of plakinid species in Brazil to eleven. Plakortis petrupaulensis sp. nov. is encrusting, light brown; the skeleton is disorganized with few traces of reticulation; lacunae are absent; the spicules are diods and tuberculate microrhabds; spheres are common and triods are absent. Plakortis spinalis sp. nov. is encrusting, gray, cartilaginous, has a reticulated ectosomal skeleton, and is distinguished by the spines in some of the diods and triods; microrhabds are also tuberculate and smooth spheres are common. Plakortis potiguarensis sp. nov. is encrusting, brown with gray tinges, and cartilaginous; the skeleton is disorganized and scarce, composed of thin, irregular diods, triods and relatively large microrhabds. Plakinastrella globularis sp. nov. has a globular shape and dark blue color in vivo; the ectosomal skeleton has a double tangential reticulation and the choanosomal skeleton is reticulated. The spicules are diods, triods, calthrops and microrhabds; spheres are common. Two of the new species have characters previously unknown in their respective genera: the spined diods and triods of Plakortis spinalis sp. nov. and the blue color and microrhabds of Plakinastrella globularis sp. nov. The presence of microrhabds in Plakinastrella suggests a close relationship of this genus with Plakortis.
Geographical
term
Tropical West Atlantic
Bibliographical
term
Systematics, Taxonomy
Taxonomic
term
Porifera
Taxa
(4)
Checked: verified by a taxonomic editorPlakinastrella globularis Domingos, Moraes & Muricy, 2013 (original description)
Checked: verified by a taxonomic editorPlakortis petrupaulensis Domingos, Moraes & Muricy, 2013 (original description)
Checked: verified by a taxonomic editorPlakortis potiguarensis Domingos, Moraes & Muricy, 2013 (original description)
Checked: verified by a taxonomic editorPlakortis spinalis Domingos, Moraes & Muricy, 2013 (original description)
Distributions
(12)
Brazilian Exclusive Economic Zone for Plakinastrella globularis Domingos, Moraes & Muricy, 2013
Brazilian Exclusive Economic Zone for Plakortis petrupaulensis Domingos, Moraes & Muricy, 2013
Brazilian Exclusive Economic Zone for Plakortis potiguarensis Domingos, Moraes & Muricy, 2013
Brazilian Exclusive Economic Zone for Plakortis spinalis Domingos, Moraes & Muricy, 2013
Eastern Brazil for Plakinastrella globularis Domingos, Moraes & Muricy, 2013
Fernando de Naronha and Atoll das Rocas for Plakortis spinalis Domingos, Moraes & Muricy, 2013
Northeastern Brazil for Plakortis potiguarensis Domingos, Moraes & Muricy, 2013
Sao Pedro and Sao Paulo Islands for Plakortis petrupaulensis Domingos, Moraes & Muricy, 2013
South West Atlantic for Plakinastrella globularis Domingos, Moraes & Muricy, 2013
South West Atlantic for Plakortis petrupaulensis Domingos, Moraes & Muricy, 2013
South West Atlantic for Plakortis potiguarensis Domingos, Moraes & Muricy, 2013
South West Atlantic for Plakortis spinalis Domingos, Moraes & Muricy, 2013
Edit
history
Date   action   by
2013-10-09 12:26:57Z  created  Boury-Esnault, Nicole
2013-10-11 14:54:12Z  changed  van Soest, Rob
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