The status of the northeastern Atlantic and Mediterranean small mussel drills of the <i>Ocinebrina aciculata</i> complex (Mollusca: Gastropoda: Muricidae), with the description of a new species

Abstract

SUMMARY:The northeastern Atlantic and Mediterranean small mussel drills of the Ocinebrina aciculata complex are here revised and consist of at least 3 species. The type species, Ocinebrina aciculata (Lamarck, 1822), characterized by a slender shell with rounded whorls and primary and secondary spiral cords of approximately similar size, lives throughout the northeastern Atlantic and Mediterranean Sea at depths usually ranging between 0 and 105 m. Its synonymy is here stabilized by a neotype selection for Murex corallinus Scacchi, 1836. Ocinebrina corallinoides Pallary, 1912 (=Ocinebrina buzzurroi Cecalupo and Mariani, 2008, characterized by a strongly elongate and weakly convex shell and primary and secondary spiral cords of approximately similar size, is endemic to the Gulf of Gabès and is here considered a distinct species, pending genetic studies. Ocinebrina reinai n. sp. is here described from the central Mediterranean Sea (where it is sympatric with O. aciculata) on the basis of morphological diagnostic features of shell (rarest presence of labral tooth, commoner presence of infrasutural apertural denticle, dark spots on the ribs and spiral sculpture with differently sized primary and secondary cords and smaller threads) and radula, confirmed by genetic data. Divergence in COI sequences with sympatric samples of O. aciculata (>7%), confirm their status as a distinct species. A comparative table reporting diagnostic features of the congeneric species of the complex and those with which the new species was previously misidentified is offered.Keywords: Mollusca, Muricidae, Ocinebrina aciculata complex, Ocinebrina reinai, new species, Mediterranean Sea. RESUMEN: El estatus de las especies del grupo de Ocinebrina aciculata (Mollusca: Gastropoda: Muricidae) del Atlántico noreste y del Mediterráneo, con la descripcion de una nueva especie. -Se revisa la taxonomía de las pequeñas especies de gasterópodos murícidos del grupo de Ocinebrina aciculata (Lamarck, 1822). Se consideran válidas tres especies, de las que una se describe como nueva. O. aciculata es la especie tipo del género, está caracterizada por una concha alargada, espiras redondeadas, cordones primarios y secundarios aproximadamente del mismo tamaño, y está distribuida en el área del Atlántico noreste y del Mediterráneo, entre 0 y 105 m de profundidad. Para estabilizar su sinonimia se ha seleccionado un neotipo para Murex corallinus Scacchi, 1836. O. corallinoides Pallary, 1912 (=Ocinebrina buzzurroi Cecalupo and Mariani, 2008, nueva sinonimia) es endémica del Golfo de Gabès, y se distingue por su concha muy alargada y poco convexa, con cordones primarios y secundarios aproximadamente del mismo tamaño. Se considera una especie distinta, a la espera de estudios genéticos. O. reinai n. sp. se describe aqui, y se ha encontrado en Mediterráneo central, donde vive simpátrica con O. aciculata, de la que se distingue por caracteres morfológicos de la concha (rara presencia del diente labral, diente apertural infrasutural más frecuente, manchas oscuras en las ...

A molecular phylogenetic framework for the subfamily Ocenebrinae (Gastropoda, Muricidae)

“…Two groups of north‐eastern Atlantic and Mediterranean species are traditionally attributed to Ocinebrina : the O. aciculata complex (Crocetta et al . ); and the O. edwardsii complex (Barco et al . ).…”

Biogeographical homogeneity in the eastern Mediterranean Sea. II. Temporal variation in Lebanese bivalve biota

“…400 native bivalve species and less than 100 alien bivalve species have been recorded in the Mediterranean Sea (Coll et al 2010, Zenetos et al 2012. However, considering the continuous de scrip tion of new species in the Mediterranean (more than 100 molluscs during the last 10 yr alone, Crocetta et al 2012), the unexpected results obtained by the combined use of molecular and morpho logical ap proaches (Calvo et al 2009, Guar niero et al 2010, and the increasing trend of colonization of the Mediterranean Sea by alien species (Galil 2009, Zenetos et al 2012, these figures are deemed to increase in the near future.…”

Molecular data reveal cryptic lineages within the northeastern Atlantic and Mediterranean small mussel drills of theOcinebrina edwardsiicomplex (Mollusca: Gastropoda: Muricidae)

“…We used the ocinebrine Nucella lapillus (Linné, 1758) as an outgroup in the phylogenetic analyses, and also included specimens of Ocinebrina aciculata and O. reinai as recently defined by Crocetta et al . ().…”