New Additions of Luminous Bobtail Squids to the Japanese Cephalopod Fauna (Sepiolida: Sepiolidae: Heteroteuthinae)

Abstract

Three lots of Pacific sepiolid specimens in the collection of National Museum of Nature and Science, Tokyo, were found to contain three new species: Heteroteuthis nordopacifica n. sp., Sepiolina petasus n. sp. and Stoloteuthis japonica n. sp. The second-mentioned taxon is the second species in the genus Sepiolina, and the third species represents the first occurrence of the genus Stoloteuthis in the Pacific Ocean. The descriptions of each species and comparison with related species are given herewith.