Description of a new Osedax (Annelida, Polychaeta, Siboglinidae) species colonizing cow bones in the South Atlantic Ocean.

ABSTRACT: A new species of Osedax is described here using molecular and morphological data. It was found at the depth of 550 m off the Brazilian coast through experimental deployment of cow bones. Osedaxnataliae sp. nov. is the second Osedax species from the Southwest Atlantic Ocean and had been previously reported as Osedax 'BioSuOr-4'. Phylogenetic analysis of five concatenated genetic makers (28S rDNA, Histone H3, 18S rDNA, 16S rDNA, and cytochrome c oxidase I) placed Osedaxnataliae sp. nov. within a well-supported Osedax Clade V, nested within a clade of Pacific Ocean Osedax though with poor support. The minimum interspecific COI distance between O.nataliae sp. nov. and another known Osedax was 13.92% (closest to

SUBMITTER: Gularte T 

PROVIDER: S-EPMC11632350 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature