Resurrection of Mesoplodon hotaula Deraniyagala 1963: A new species of beaked whale in the tropical Indo-Pacific

We present genetic and morphological evidence supporting the recognition of a previously synonymized species of Mesoplodon beaked whale in the tropical Indo-Pacific, Mesoplodon hotaula. Although the new species is closely-related to the rare ginkgo-toothed beaked whale M. ginkgodens, we show that these two lineages can be differentiated by maternally (mitochondrial DNA), biparentally (autosomal), and paternally (Y chromosome) inherited DNA sequences, as well as by morphological features. The reciprocal monophyly of the mtDNA genealogies and the largely parapatric distribution of these lineages is consistent with reproductive isolation. The new lineage is currently known from at least seven specimens: Sri Lanka (1), Gilbert Islands, Republic of Kiribati (1+), Palmyra Atoll, Northern Line Islands, U.S.A. (3), Maldives (1), and Seychelles (1). The type specimen (Sri Lanka) was described as a new species, M. hotaula, in 1963, but later synonymized with M. ginkgodens. This discovery brings the total number of Mesoplodon species to 15, making it, by far, the most speciose yet least known genus of cetaceans.Keywords: Species delimitation, Mesoplodon, Nuclear introns, Taxonomy, Y-chromosome, mtDNA, Morphology, Speciation, Beaked whal

Etude du genre Acanthophorus Audinet-Serville, 1832, et première capture d'A. serraticornis (Olivier, 1795) au Sri Lanka (Coleoptera, Cerambycidae, Prioninae)

About the genus Acanthophorus Audinet-Serville, 1832, and first record of A. serraticornis (Olivier, 1795) from Sri Lanka (Coleoptera, Cerambycidae, Prioninae). Acanthophorus serraticornis (Olivier, 1795) was collected for the first time in Sri Lanka. A neotype is designated for Prionus serraticornis Olivier, 1795, after examining more than 70 specimens. The morphology of the two sexes is described, biology and the geographical distribution are commented.Acanthophorus serraticornis (Olivier, 1795) est cité pour la première fois du Sri Lanka. Un néotype est désigné pour Prionus serraticornis Olivier, 1795, après examen de plus de 70 spécimens. La morphologie des deux sexes est décrite, la biologie et la répartition géographique sont commentées.Delahaye Norbert, Goonatilake Manori, Silva Madhuka. Etude du genre Acanthophorus Audinet-Serville, 1832, et première capture d'A. serraticornis (Olivier, 1795) au Sri Lanka (Coleoptera, Cerambycidae, Prioninae). In: Bulletin de la Société entomologique de France, volume 116 (3),2011. pp. 329-335

Etude du genre Acanthophorus Audinet-Serville, 1832, et première capture d'A. serraticornis (Olivier, 1795) au Sri Lanka (Coleoptera, Cerambycidae, Prioninae)

About the genus Acanthophorus Audinet-Serville, 1832, and first record of A. serraticornis (Olivier, 1795) from Sri Lanka (Coleoptera, Cerambycidae, Prioninae). Acanthophorus serraticornis (Olivier, 1795) was collected for the first time in Sri Lanka. A neotype is designated for Prionus serraticornis Olivier, 1795, after examining more than 70 specimens. The morphology of the two sexes is described, biology and the geographical distribution are commented.Acanthophorus serraticornis (Olivier, 1795) est cité pour la première fois du Sri Lanka. Un néotype est désigné pour Prionus serraticornis Olivier, 1795, après examen de plus de 70 spécimens. La morphologie des deux sexes est décrite, la biologie et la répartition géographique sont commentées.Delahaye Norbert, Goonatilake Manori, Silva Madhuka. Etude du genre Acanthophorus Audinet-Serville, 1832, et première capture d'A. serraticornis (Olivier, 1795) au Sri Lanka (Coleoptera, Cerambycidae, Prioninae). In: Bulletin de la Société entomologique de France, volume 116 (3),2011. pp. 329-335