Ischnochiton boninensis Bergenhayn, 1933 and Ischnochiton comptus (Gould, 1859) are commonly found in central Honshu, Japan. These species are frequently misidentified because of the striking similarity in their overall appearance, and with the slight

The MD 55 cruise of the R/V Marion Dufresne was an important French-Brazilian expedition devoted to the exploration of the shallow offshore waters and benthos off the south-eastern coast of Brazil. Four polyplacophoran species belonging to the families

Seven (including one new) species of the polyplacophoran genus Ischnochiton (Ischnochitonidae) from the Pacific coast of Japan, namely, I. boninensis, I. comptus, I. manazuruensis, I. hakodadensis, I. hayamii sp. nov., I. paululus, and I. poppei, were