Fig. 4From: Four new species of Chaetodermatidae (Mollusca, Caudofoveata) from bathyal bottoms of the NW Iberian Peninsula Falcidens urgorrii sp. nov. a Buccal shield under optical microscope of Paratype 4; b, c Arrangement of sclerites of Paratype 5 under SEM; b Trunk; c NeckBack to article page