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 31 records in the project database.

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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)

An Allegheny Crayfish in Garrett Co., Maryland (6/10/2017). 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 (Date obscured). (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 Garrett Co., Maryland (5/10/2023). (c) Emilio Concari, some rights reserved (CC BY-NC). Photo by Emilio Concari. (MBP list)

Allegheny Crayfish in Garrett Co., Maryland (5/10/2023). (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)


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