Animalia → Petromyzontida → Petromyzontidae

Pacific Lamprey

Entosphenus tridentatus

Vertebrate Animals

ORBIC List 2S1S2SOC

State Rank

SX
S1
S2
S3
S4
S5

S1S2 — Critically Imperiled in Oregon

What do these ranks mean? ORBIC's ranking definitions or NatureServe's conservation status categories

Ecoregions

Blue Mountains
Columbia Basin
Coast Range
East Cascades
Klamath Mountains
Marine & Estuarine
West Cascades
Willamette Valley

Counties

Baker · Benton · Clackamas · Clatsop · Columbia · Coos · Crook · Curry · Douglas · Gilliam · Grant · Hood River · Jackson · Jefferson · Josephine · Klamath · Lake · Lane · Lincoln · Linn · Marion · Morrow · Multnomah · Polk · Sherman · Tillamook · Umatilla · Union · Wallowa · Wasco · Washington · Wheeler · Yamhill

Other states / provinces

CA, ID, WA +

Range map

Certain
Possible
Extirpated
Absent