Animalia → Petromyzontida → Petromyzontidae
Western River Lamprey
Lampetra ayresii
Vertebrate Animals
ORBIC List 3S3?SOC
State Rank
SX
S1
S2
S3
S4
S5
S3? — Vulnerable in Oregon
G5
Global Rank
Secure
SOC
Federal ESA
Species of Concern
List 3
ORBIC
Sensitive / Vulnerable
What do these ranks mean? ORBIC's ranking definitions or NatureServe's conservation status categories
Ecoregions
Columbia Basin
Coast Range
Marine & Estuarine
Willamette Valley
Counties
Clatsop · Columbia · Coos · Douglas · Lincoln · Tillamook
Other states / provinces
CA, WA +
Range map
Certain
Possible
Extirpated
Absent