Caption
Brebissonia lanceolata has been found in several wadeable streams in southwestern Alaska. The pH of these streams ranges from 6.9 to 7.9 with a mean of 7.3 and specific conductance ranges from 19 to 86 µS/cm with an average of 44 µS/cm. It has also been reported from streams and rivers in Eastern Siberia (Potapova 1996).