[Occurrence of the leech Cystobranchus respirans (Troschel) in the Czechoslovak sector of the Danube].
D000818:Animals; D003604:Czechoslovakia; D007865:Leeches / Q000033:anatomy & histology*
Výskyt pijavice Cystobranchus respirans (Troschel) v ceskoslovenskom úseku Dunaja.