Lampetra ayresii (Günther, 1870)

Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W. & Maslenikov, Katherine P., 2021, Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico, Zootaxa 5053 (1), pp. 1-285 : 12

Lampetra ayresii (Günther, 1870) .

Western River Lamprey. To 34.6 cm (13.6 in) TL ( Morgan et al. 2018). Tee Harbor, south-eastern Alaska ( Scott and Crossman 1973) to San Francisco Bay, northern California ( Vladykov and Follett 1958). Anadromous, found in estuaries and coastal marine waters for a few months in summer; depth: at sea, perhaps to 119 m (390 ft) (DFO) (taken in a midwater trawl; Maria Cornthwaite).