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A NEW SPECIES OF THE PETROLISTHES GALATHINUS SPECIES COMPLEX FROM THE SOUTHERN CARIBBEAN SEA (DECAPODA, ANOMURA, PORCELLANIDAE)

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[A new species of porcellanid crab, Petrolisthes bolivarensis, is described as an additional member of the Petrolisthes galathinus species complex (Werding, 1983). The new species is distinguished morphologically from all other Caribbean members of the complex except from P.columbiensis by its conspicuously broad chelae. From P. columbiensis it is distinguished by the presence of only one epibranchial spine instead of two and three instead of four movable spines on the dactyli of the walking legs. Living specimens can be identified by their colouration, especially by a yellow to orange spot on the articulation of the dactylus of the chelae.

Eine neue Porcellanidenart, Petrolisthes bolivarensis wird als weiteres Mitglied des Petrolisthes galathinus Artenkomplexes (Werding, 1983) beschrieben. Die neue Art ist morphologisch von allen anderen karibischen Arten des Komplexes außer P.columbiensis durch die auffällig breiten Scheren zu unterscheiden. Von P. columbiensis unterscheidet sie sich durch das Vorhandensein nur eines Epibranchialstachels und dreier anstatt vierer beweglicher Dornen an den Laufbeindactyli. Lebende Exemplare lassen sich an ihrer Färbung erkennen, besonders an einem gelb- bis orangefarbenen Punkt auf dem Gelenk des Scherendactylus., A new species of porcellanid crab, Petrolisthes bolivarensis, is described as an additional member of the Petrolisthes galathinus species complex (Werding, 1983). The new species is distinguished morphologically from all other Caribbean members of the complex except from P.columbiensis by its conspicuously broad chelae. From P. columbiensis it is distinguished by the presence of only one epibranchial spine instead of two and three instead of four movable spines on the dactyli of the walking legs. Living specimens can be identified by their colouration, especially by a yellow to orange spot on the articulation of the dactylus of the chelae.

Eine neue Porcellanidenart, Petrolisthes bolivarensis wird als weiteres Mitglied des Petrolisthes galathinus Artenkomplexes (Werding, 1983) beschrieben. Die neue Art ist morphologisch von allen anderen karibischen Arten des Komplexes außer P.columbiensis durch die auffällig breiten Scheren zu unterscheiden. Von P. columbiensis unterscheidet sie sich durch das Vorhandensein nur eines Epibranchialstachels und dreier anstatt vierer beweglicher Dornen an den Laufbeindactyli. Lebende Exemplare lassen sich an ihrer Färbung erkennen, besonders an einem gelb- bis orangefarbenen Punkt auf dem Gelenk des Scherendactylus.]

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/content/journals/10.1163/156854002763270536
2002-09-01
2016-12-02

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