41 research outputs found
Biodiversity and distribution of lethaeine seed bugs (Heteroptera, Rhyparochromidae, Lethaeini) from Argentina
Snapping shrimps of the genus Alpheus Fabricius, 1798 from Brazil (Caridea: Alpheidae): updated checklist and key for identification
Lista das espécies de aranhas (Arachnida, Araneae) do estado do Rio Grande do Sul, Brasil
Inventårio das espécies de Cerambycinae (Insecta, Coleoptera, Cerambycidae) do Parque Nacional do Itatiaia, RJ, Brasil
A taxonomic bibliography of the South American snakes of the Crotalus durissus complex (Serpentes, Viperidae)
Recherches sur le DĂ©veloppement post-embryonnaire de la Langouste commune ( Palinurus vulgaris
A short biography of the entomologist James Thomson and the dates of publication of the Archives Entomologiques, Arcana Naturae, Monographie des Cicindélides, Musée Scientifique and Physis
Leptonotus vincentae, a new pipefish species (Syngnathidae: Syngnathinae) from the south-west Atlantic Ocean near northern Patagonia
A new species of pipefish Leptonotus vincentae sp. nov. (Syngnathidae) is described on the basis of 12 specimens found in shallow waters (<2 m depth) of San Antonio Bay, Patagonia, Argentina, in the south-west Atlantic Ocean. The species is distinguished from congeners by the combination of: dorsal-fin rays 30â33, pectoral-fin rays 12â13, trunk rings 18â19, tail rings 43â46, subdorsal rings (2â4) + (5.5â8) = (8.5â10), head length 13â14% standard length, snout length 35â55% head length and snout depth 21â30% in snout length. Although this species has often been mistaken for Leptonotus blainvilleanus, most diagnostic characters of the two species differ. Both species are clearly distinguished by their snout length. L. blainvilleanus has a relatively longer snout than L. vincentae sp. nov. The new species is similar to a south-west Pacific species, Leptonotus elevatus. However, L. vincentae sp. nov. differs from this species in that it exhibits a lower number of dorsal-fin rays and a relatively longer head.Fil: Luzzatto, Diego. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Estalles, MarĂa Lourdes. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina. Instituto de FormaciĂłn Docente y Continua San Antonio O; Argentin