Illustrated species account of Lepidochitona cinerea (Linnaeus, 1767), Mollusca, Polyplacophora, with images and key features of similar species. https://flic.kr/p/qQB9qW Ventral. 16mm long. Head valve i on right enlarged. Thick inner layer of shell (articulame...

The systematics of the northeastern Pacific Lepidochitona from the Californian and Oregonian Provinces (western continental United States) is presented and discussed. Three new species are described: L. caverna spec. nov. and L. berryana spec. nov. from

Lepidochitona salvadorensis sp. nov. from El Salvador is the third species of the genus described for the Panamic Province. The species previously known were Lepidochitona beanii Carpenter, 1857 and L. corteziana Clark 2000. L. salvadorensis differs from

We describe the karyotype, location of nucleolus-organizing regions (NORs) and heterochromatin composition and distribution in Lepidochitona caprearum (Scacchi, 1836). The examined specimens had 2n=24 chromosomes; the elements of pairs 1–4 were metacentric,