Author: Vladykov, 1973
FBname: Pacific brook lamprey
Remark: This species may be a synonym of <i>L. richardsoni</i>, the lower number of trunk myomeres in the former reflecting a latidutinal cline. This requires further investigation.
Comments: Freshwater; creeks and rivers. Metamorphosis occurs in October in Oregon and California.
  Adults nonparasitic. Based on the dates of collection of spawning individuals in the original description, the spawning period probably occurs between mid-April and August in Oregon, while in California spawning probably occurs between the end of April and the beginning of May (Ref. 89241).