Allegheny Crayfish Faxonius obscurus (Hagen, 1870)S3 (Watch list)    Synonyms: Orconectes obscurus.
Kingdom Animalia   >   Phylum Arthropoda   >   Class Malacostraca   >   Order Decapoda   >   Family Cambaridae   >   Genus Faxonius   

Status:

Allegheny Crayfish is native to the northeastern U.S. and is found in slow-moving water with rocky substrates.

Relationships:

Displacement by non-native crayfish such as Rusty Crayfish is a regional threat.

There are 28 records in the project database.

View images at BugGuide

View taxon at iNaturalist

Search Google Images


[View seasonality details]
GA AL WA FR CL MO HO BA BC HA CE PG AA CVCHSMKEQACNTADOWISOWO
An Allegheny Crayfish in Garrett Co., Maryland (8/11/2019). Determined by Jason D. Roberts/BugGuide. Often confused with F. virilis; note the slightly wider areola. Photo by Emilio Concari. (MBP list)

An Allegheny Crayfish in Garrett Co., Maryland (8/28/2016). Determined by Mikey Lutmerding. Photo by Bill Hubick. (MBP list)

An Allegheny Crayfish in Garrett Co., Maryland (8/28/2016). Determined by Mikey Lutmerding. Photo by Bill Hubick. (MBP list)

Allegheny Crayfish in Frederick Co., Maryland (10/24/2020). (c) Emilio Concari, some rights reserved (CC BY-NC). Photo by Emilio Concari. (MBP list)

Allegheny Crayfish in Frederick Co., Maryland (3/27/2021). (c) Emilio Concari, some rights reserved (CC BY-NC). Photo by Emilio Concari. (MBP list)

Allegheny Crayfish in Frederick Co., Maryland (10/24/2020). (c) Emilio Concari, some rights reserved (CC BY-NC). Photo by Emilio Concari. (MBP list)

An Allegheny Crayfish in Garrett Co., Maryland (6/10/2017). Photo by Bill Hubick. (MBP list)

Allegheny Crayfish in Frederick Co., Maryland (8/1/2020). (c) trinectes, all rights reserved. Photo by Robert Aguilar, SERC. (MBP list)

Allegheny Crayfish in Frederick Co., Maryland (5/10/2021). (c) Emilio Concari, some rights reserved (CC BY-NC). Photo by Emilio Concari. (MBP list)

Allegheny Crayfish in Frederick Co., Maryland (3/27/2021). (c) Emilio Concari, some rights reserved (CC BY-NC). Photo by Emilio Concari. (MBP list)

Allegheny Crayfish in Frederick Co., Maryland (5/10/2021). (c) Emilio Concari, some rights reserved (CC BY-NC). Photo by Emilio Concari. (MBP list)

An Allegheny Crayfish in Garrett Co., Maryland (8/28/2016). Determined by Mikey Lutmerding. Photo by Bill Hubick. (MBP list)

An Allegheny Crayfish with eggs in Washington Co., Maryland (4/26/2019). Photo by Bill Hubick. (MBP list)

Allegheny Crayfish in Frederick Co., Maryland (10/24/2020). (c) Emilio Concari, some rights reserved (CC BY-NC). Photo by Emilio Concari. (MBP list)

Allegheny Crayfish in Washington Co., Maryland (5/27/2021). (c) Emilio Concari, some rights reserved (CC BY-NC). Photo by Emilio Concari. (MBP list)

Allegheny Crayfish in Washington Co., Maryland (5/27/2021). (c) Emilio Concari, some rights reserved (CC BY-NC). Photo by Emilio Concari. (MBP list)


View All Images

Use of images featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.

View Bibliography