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ISSUE 2

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Mortalidad natural  de Paracalanus indicus (Copepoda: Calanoida)  en áreas de surgencia asociada a la zona de mínimo de oxígeno en el Sistema de Corrientes Humboldt: implicancias en el transporte pasivo del flujo de carbono

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Antitumor activity of Actinobacteria isolated in marine sediment from Todos Santos Bay, Baja California, Mexico

ARTICLE

Limatula chilensis sp. nov. A new Limidae (Mollusca: Bivalvia) from northern Chile

Authors

CORRESPONDING

Marcelo Enrique Oliva

meoliva@uantof.cl

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Instituto de Investigaciones Oceanológicas, Facultad de Recursos del Mar, Universidad de Antofagasta, P.O. Box 170, Antofagasta, Chile

Carla Adriana Campusano

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Instituto de Investigaciones Oceanológicas, Facultad de Recursos del Mar, Universidad de Antofagasta, P.O. Box 170, Antofagasta, Chile

Paula Mariela Ruz

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Instituto de Investigaciones Oceanológicas, Facultad de Recursos del Mar, Universidad de Antofagasta, P.O. Box 170, Antofagasta, Chile

Abstract

Limatula chilensis sp. nov. is described on the basis of shell morphology and soft tissue anatomy. Studied individuals were obtained periodically between June 2008 and January 2009 from sublittoral soft-sediments off Punta Coloso in northern Chile at depths of 22 to 33 m. Shell morphology of the new species differs from the 4 described species of Limatula from the Pacific coast of South America and Antarctic Peninsula (5°-65°S). Main characteristics of L. chilensis include an average height of 3.50 mm (range 2.36-4.42, SD ± 0.60, n = 34), number of radial ribs 16-21 (mode = 20, SD= 1.69, n = 8) and greater shell obliqueness. L. chilensis is the only known species of the genus found off northern Chile.

Key words

Humboldt Current system, Chile, new species

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