| new records of the chaetiferous leech-like annelid paracanthobdella livanowi (epshtein, 1966) (annelida: clitellata: acanthobdellida) from kamchatka, russia. | acanthobdellidans are unique in their organisation and phylogenetic relationships due to having transitional characters that combine features of oligochaetous and achaetous annelids. alongside the relatively well-studied acanthobdella peledina grube, 1851, there is another member of the group, paracanthobdella livanowi (epshtein, 1966), with five rows of chaetae and an anterior sucker. it appears that the anterior sucker is weakly developed in small juveniles but acquires a deep cavity in adults ... | 2013 | 23263942 |