Annotated checklist of the leech species diversity in the Maloe More Strait of Lake Baikal, Russia Author Kaygorodova, Irina A. text ZooKeys 2015 545 37 52 http://dx.doi.org/10.3897/zookeys.545.6053 journal article http://dx.doi.org/10.3897/zookeys.545.6053 1313-2970-545-37 5F786F123BD940CF838C7F31F7F3F93B 5F786F123BD940CF838C7F31F7F3F93B Taxon classification Animalia Rhynchobdellea Piscicolidae Baicalobdella cottidarum Dogiel, 1957 Trachelobdella torquata (part.): Epstein 1959 ; Trachelobdella torquata (part.): Epstein 1959 ; Trachelobdella torquata (part.): Kozhov 1962 ; Trachelobdella torquata (part.): Lukin 1963; Baicalobdella torquata (part.): Lukin 1976 . Geographic distribution. Endemic to Lake Baikal. Maloe More: Kurma Bay; Olkhon Gates Strait; Kharansa Bay. Ecological characteristics. This species inhabits the littoral zone of Lake Baikal (0-200 m). This species is less abundant in the Maloe More area than its sister species, Baicalodbella torquata . In contradistinction to Baicalodbella torquata , it parasitizes only Baikal cottoid fishes. Baicalobdella cottidarum can be found directly on a host or in a free-living state on the surface of benthic substrates.