He discovered and described over 130 species of new mollusca, mainly in the Volutidae and Trochidae, and more than 30 species have been named after him by scientists from all over the world.
He discovered. He described over 130 species of new mollusca in the Volutidae and Trochidae. This was mainly. More than 30 species have been named after him by scientists from all over the world.