Bactrurus cellulanus Koenemann and Holsinger, 2001

Solitary amphipod (proposed)



Taxonomy & Nomenclature



Conservation Status


Last record: 1963 (8 January or later in the year)



Monroe County, Indiana, USA


Biology & Ecology




Holotype: USNM 296422 (male)

Type locality: "In seep under basement of Jordan Hall, University Of Indiana, Bloomington, Monroe County, Indiana, USA"

Allotype: USNM 310859 (female)

Paratype: apparently a male has been designated as a paratype (Koenemann & Holsinger, 2001), but I cannot find an accession number.

Additional specimens: (Koenemann & Holsinger, 2001) states that a further specimen was also collected (December 1962 or January 1963). Four specimens collected in total on three separate occasions altogether according to (Taylor & Niemiller, 2016).

(search "Bactrurus cellulans" at for full account of collection of the holotype and allotype)






Original scientific description:

Koenemann, S. and Holsinger, J. R. (2001). Systematics of the North American Subterranean Amphipod Genus Bactrurus (Crangonycitade). Beaufortia 51(1): 1-56.


Other references:

"Bactrurus cellulanus Koenemann and Holsinger, 2001". Encyclopedia of Life, available from "". Accessed 24 Apr 2011.

Holmes, Branden. (2021). What's Lost and What Remains: The Sixth Extinction in 100 Accounts (eBook). Self published.

Lewis, J. J. (2012). Subterranean systems. In: Whitaker JO, Amlaner CJ (Eds) Habitats and ecological communities of Indiana – presettlement to present. Indiana University Press, Bloomington, 156-175.

Lewis, J. J. (2015). The subterranean asellids of Indiana (Isopoda), with the description of Caecidotea dunlaporum, new species. Journal of Cave and Karst Studies 77(2): 99-107.

NatureServe. 2011. NatureServe Explorer: An online encyclopedia of life [web application]. Version 7.1. NatureServe, Arlington, Virginia. Available (Accessed: September 17, 2011 ).

Taylor, Steven J. and Niemiller, Matthew L. (2016). Biogeography and conservation assessment of Bactrurus groundwater amphipods (Crangonyctidae) in the central and eastern United States. Subterranean Biology 17: 1-29.


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