Missouri Department of Conservation
Missouri Department of Conservation

Taxonomy

Common Name: CRAYFISH, WILLIAMS'

Phylum: ARTHROPODA

Class: CRUSTACEA

Order: DECAPODA

Family: CAMBARIDAE

Genus: FAXONIUS

Species: WILLIAMSI

Taxonomic Authority: FITZPATRICK

Taxonomy References: 006 , 002

Status

NONGAME
STATE RANK S2
GLOBAL RANK G2

Status References: 001 , 003

Habitat Summary

"Occur in clear, rocky/gravelly headwater creeks, spring branches, and cave streams."

Primary Habitat: "Aquatic - river/stream"

References: 002

Distribution

General Occurrence in State:

"Occurs in the upper White river drainage of Missouri."

County Occurance

County Occurence
Known Likely Unknown Not Likely Historic Extirpated
BARRY ADAIR
CHRISTIAN ANDREW
STONE ATCHISON
TANEY AUDRAIN
BARTON
BATES
BENTON
BOLLINGER
BOONE
BUCHANAN
BUTLER
CALDWELL
CALLAWAY
CAMDEN
CAPE GIRARDEAU
CARROLL
CARTER
CASS
CEDAR
CHARITON
CLARK
CLAY
CLINTON
COLE
COOPER
CRAWFORD
DADE
DALLAS
DAVIESS
DEKALB
DENT
DOUGLAS
DUNKLIN
FRANKLIN
GASCONADE
GENTRY
GREENE
GRUNDY
HARRISON
HENRY
HICKORY
HOLT
HOWARD
HOWELL
IRON
JACKSON
JASPER
JEFFERSON
JOHNSON
KNOX
LACLEDE
LAFAYETTE
LAWRENCE
LEWIS
LINCOLN
LINN
LIVINGSTON
MACON
MADISON
MARIES
MARION
MERCER
MILLER
MISSISSIPPI
MONITEAU
MONROE
MONTGOMERY
MORGAN
NEW MADRID
NEWTON
NODAWAY
OREGON
OSAGE
OZARK
PEMISCOT
PERRY
PETTIS
PHELPS
PIKE
PLATTE
POLK
PULASKI
PUTNAM
RALLS
RANDOLPH
RAY
REYNOLDS
RIPLEY
SALINE
SCHUYLER
SCOTLAND
SCOTT
SHANNON
SHELBY
ST. CHARLES
ST. CLAIR
ST. FRANCOIS
ST. LOUIS
STE. GENEVIEVE
STODDARD
SULLIVAN
TEXAS
VERNON
WARREN
WASHINGTON
WAYNE
WEBSTER
WORTH
WRIGHT

References for distribution: 005 , 002 , 007

Distribution by Watersheds

White R. above Tablerock Dam
James R.
White R. below Tablerock Dam and Little North Fork White R.

Comments: ""

Distribution by Ecoregions

Ozark Highlands

Comments: ""

Distribution by Potential Natural Vegetation

Cedar Glades
Oak-Hickory Forest

Distribution by Natural Divisions of Missouri

Ozark: Springfield Plateau
Ozark: Elk River
Ozark: White River

Habitat Associations

Species is associated with "Aquatic" habitats.

National Wetlands Inventory Association:

Riverine

Aquatic Associations:

"Riverine, unknown perennial", "Unconsolidated bottom, cobble/gravel"

References for Aquatic Associations: 002

Habitat Types:

Permanent Stream

References for Habitat Types: 004 , 002

Terrestrial Natural Communities:

References for Terrestrial Natural Communities:

Food Habits

Trophic Level:

""

Larval Food Habits

Comments for larval food habits:
""

References for larval food habits:

Juvenile Food Habits

Comments for Juvenile Food Habits:
""

References Juvenile Food Habits

Adult Food Habits

Food Habits Unknown; Not Specified

Comments for Adult Food Habits:
""

References Adult Food Habits

Niche Requirements

Egg Niche Requirements

References for egg niches requirements:

Feeding Larvae Niche Requirements

References for feeding larvae niche requirements:

Resting Larvae Niche Requirements

References for resting Larvae niche requirements:

Feeding Juvenile Niche Requirements

References for feeding juvenile niche requirements:

Resting Juvenile Niche Requirements

References for resting juvenile niche requirements:

Breeding Adult Niche Requirements

References for feeding Adult niche requirements: 002

Feeding Adult Niche Requirements

References for feeding adult niche requirements:

Resting Adult Niche Requirements

References for resting adult niche requirements:

Niche Requirement Summary

Bottom type: gravel
Bottom type: rubble
Cave springs
Inland wetlands: cave streams
Inland wetlands: permanent stream
Inland wetlands: spring branch
Seeps/springs specified in comments(00210)
Stream order specified in comments(00260)
Turbidity: clear water
Underwater cover specified in comments(00105)
Underwater cover: rocks

Comments about Life History:

Code Comment

Life History Information

Origin in state: native
Seasonal distribution in state: all seasons

Comments about Life History:

Code Comment

References for life history: 002

Management

Beneficial Management Practices:

Beneficial Management References:

Adverse Managment Practices:

Adverse Management References:

Comments on Management:

References for Management Comments:

References

Reference Code Citation
001 Missouri Natural Heritage Program. 2007. Missouri Species and Communities of Conservation Concern Checklist. MO Dept. of Conservation. Jefferson City, MO. 51 pp.
002 Pflieger, W.L. 1996. The Crayfishes Of Missouri. Missouri Department Of Conservation. Jefferson City, Missouri. 152 Pp.
003 The Wildlife Code of Missouri. Missouri Department of Conservation, P.O. Box 180, Jefferson City, MO 65102. 573-751-4115.
004 Bouchard, R.W. and H.W. Robinson. 1980. An inventory of the decapod crustaceans (crayfishes and shrimps) of Arkansas with a discussion of their habitats. Arkansas Acad. Sci. Proc. 34:22-30.
005 Unpb Missouri Department of Conservation Heritage Database. P.O. Box 180, Jefferson City, Mo 65102.
006 CRANDALL, K.A. AND S.DE GRAVE. 2017. AN UPDATED CLASSIFICATION OF THE FRESHWATER CRAYFISHES (DECAPODA:ASTACIDEA) OF THE WORLD, WITH A COMPLETE SPECIES LIST. J. OF CRUSTACEAN BIOLOGY 2017:1-39.
007 Unpb Distefano, Robert. Statewide Historical Crayfish Database. Missouri Dept. of Conservation, 3500 E. Gans Rd., Columbia, MO 65201.