Erpobdella vilnensis

Geographic distribution. Palaearctic species. It is known from central to east Europe, widespread throughout Poland, Austria, Czechia, Slovakia, Hungary, Romania, Slovenia and Latvia (Nesemann & Neubert 1999). The easternmost distribution records were from Kyrgyzstan (Jueg et al. 2013), until it was discovered in the East Kazakhstan, in this study. Irtysh River area: The Irtysh River (N 52 º 19 ′ 17 ′′ / E 76 º 53 ′ 22 ′′), the Peschanka River (N 50 º 10 ′ 08 ′′ / E 82 º 03 ′ 07 ' ′), the Kyzylsu River (N 50 º 06 ′ 14 ′ / E 81 º 32 ′ 56 ' ′), the Shulbinsk water reservoir (N 50 º 22 ′ 53 ′′ / E 81 º 06 ′ 13 ′′; N 50 º 23 ′ 35 ′′ / E 81 º 05 ′ 36 ′′), and the Bukhtarma water reservoir (N 49 º 36 ′ 58 ′′ / E 83 º 31 ′ 33 ′′; N 49 º 37 ′ 01 ′′ / E 83 º 34 ′ 18 ′′; N 49 º 37 ′ 39 ′′ / E 83 º 27 ′ 21 ′′), Lake Bolshoe (N 50 º 43 ′ 16 ′′ / E 79 º 40 ′ 49 ′′), and Lake Maloe (N 50 º 43 ′ 45 ′′ / E 79 º 40 ′ 15 ′′). Ecology. The preferred habitats were rocky substrates in the shallow zone of the water reservoirs. This is the most common erpobdellid species in mountain streams. FAMILY: HAEMOPIDAE Richardson, 1969 Species: Haemopis sanguisuga (Linnaeus, 1758) Geographic distribution. Palaearctic region. Irtysh River area: The Irtysh River (N 52 º 16 ′ 52 ′′ / E 76 º 56 ′ 06 ′′; N 50 º 25 ′ 26 ′′ / E 80 º 12 ′ 34 ′′). Ecology. This species was found in river floodplain. The horse-leech is a predator of aquatic and terrestrial invertebrates, with earthworms and mollusks as a basis of its feeding. FAMILY: PRAOBDELLIDAE Blanchard, 1894 Species: Limnatis paluda (Tennent, 1859) Synonymy: Haemopis paludum: Tennant, 1859; Limnatis paluda: Moore, 1927. Geographic distribution. India and Sri Lanka (Nesemann & Neubert 1999), Southeastern Kazakhstan (Nakano et al. 2015). Irtysh River area: Lake Bolshoe (N 50 º 43 ′ 16 ′′ / E 79 º 40 ′ 49 ′′). Ecology. Limnatis paluda is a temporal ectoparasite that lives only in shallow part of standing water bodies. This leech was first described from Sri Lanka and was stated to be a cattle leech there. Now it known as a parasite of humans and other large mammals.