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Lost River Sucker (Deltistes luxatus) — Catostomidae

Lost River Sucker

Deltistes luxatus
Family: Catostomidae
EN · Endangered

The Lost River Sucker (Deltistes luxatus) is a freshwater fish of the family Catostomidae that grows up to 86 cm.

Length
86 cm
Water
Freshwater
Diet
Omnivore
Behaviour
Small groups
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
Western US (endemic)
Edibility
Not eaten

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Description

The Lost River sucker is a large sucker endemic to the Klamath and Lost River basin of the western United States. The species grows to about 86 cm and has an elongate, dark body and a fleshy, inferior sucking mouth. As a bottom-dweller it lives in lakes and rivers and searches for invertebrates, algae and detritus; it migrates upstream to spawn. Owing to dams, water shortage and habitat loss the species has declined sharply. The IUCN assesses it as Endangered (EN).

Frequently asked questions

How do you recognise the Lost River Sucker?

The Lost River Sucker has an elongate, eel-like body, is mainly brown and shows a plain pattern. Fleshy inferior sucker mouth; endangered lake endemic

Where does the Lost River Sucker live?

The Lost River Sucker lives in fresh water and is mostly found around sand or mud bottom. Western US (endemic)

How big does the Lost River Sucker get?

The Lost River Sucker grows to a maximum of about 86 cm. On average the species is around 55 cm.

Is the Lost River Sucker dangerous to humans?

No, the Lost River Sucker is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the Lost River Sucker edible?

The Lost River Sucker is not usually eaten.

More photos

Lost River Sucker (Deltistes luxatus) — Catostomidae — 2
iNaturalist ((c) wpl500, some rights reserved (CC BY-NC))
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All data

Identification

English name
Lost River Sucker verified
Scientific name
Deltistes luxatus
Family
Catostomidae
Other names
Lost river sucker; Lost River sucker verified

Appearance

Size class
Extra large verified
Max length (cm)
86.0 verified
Average length (cm)
55.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Pattern
Plain sourced
Tail shape
Forked inferred
Mouth position
Inferior (downward) sourced
Lips
Thick / fleshy sourced
Barbels
No sourced
Dorsal fins
One continuous sourced
Dorsal spines
No sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Natural range
Western US (endemic) verified
Origin
Native verified

Behaviour & biology

Diet
Omnivore sourced
Diet (detail)
Invertebrates, algae and detritus inferred
Social behaviour
Small groups sourced
Territorial
No sourced
Activity
Diurnal sourced
Reproduction
Separate sexes sourced
Sexual dimorphism
No sourced
levensduur_max_jaar
57.0 verified
Seasonality
Threatened sucker; spawns upstream in spring. sourced
Special features
Fleshy inferior sucker mouth; endangered lake endemic sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

More from the family Catostomidae

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