Author: (Vladykov, Renaud, Kott & Economidis, 1982)
FBname: Macedonia brook lamprey
Remark: Renaud and Economidis (2010) found that <i>Eudontomyzon hellenicus</i> is restricted to the Strymon River Basin, Aegean Sea Basin and that the <i>Eudontomyzon</i> species found in the Loúros River Basin, Ionian Sea Basin, is a different and new species, <i>E. graecus</i> (Ref. 89241).  Both are in genus <i>Caspiomyzon</i> (Lang et al., 2009: Ref. 89370).  Common name from Ref. 89241 replacing Greek brook lamprey.
Comments: A short-lived, freshwater lamprey which lives in shallow, clear, fairly fast-flowing brooks with gravelly substrate, some rocks and aquatic plants (Ref. 26100).  Adults are found at depths of 25-75 cm, in mud, especially among the roots of aquatic vegetation (Ref. 89241). They are filter feeders on microorganisms, including green algae (Ref. 26100).  Adults are nonparasitic and believed to live for only 3-4 months. Spawning takes place in December up to May. Ammocoetes larvae live in detritus-rich sands and clay sediments (Ref. 59043).  Metamorphosis takes place in December (Ref. 26100); between October and January in the Strymon and Loúros River Basins, Greece (Ref. 89241). Pollution and water obstruction are considered threats to the population (Ref. 26100).