Rev. biol. mar. oceanogr. 47(2): 311-316 



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

Carla Adriana Campusano1, Paula Mariela Ruz1 & Marcelo Enrique Oliva1

1Instituto de Investigaciones Oceanológicas, Facultad de Recursos del Mar, Universidad de Antofagasta, P.O. Box 170,  Antofagasta, Chile

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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