A surface-water course flowing over a karst terrane, but fed by a spring (or springs) issuing from a nonkarst terrane [20]. Synonyms: (French.) riviere allogene (cours d'eau); (German.) allochthoner Fluss (all. Waberlauf); (Greek.) allothigenes ryax, or potamos; (Italian.) corso d'acqua allogeno; (Spanish.) rio aloctono; (Turkish.) karst disi kokenli akarsu; (Yugoslavian.) alogena rijeka, alogena reka.