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Photo#747004
water sowbug - Caecidotea - male

water sowbug - Caecidotea - Male
Milton, Norfolk County, Massachusetts, USA
February 16, 2013
Size: 12 mm
Asellus communis, a/k/a Caecidotea communis. One of two anal appendages (uropods) missing. Found in submersed root mat of Phalaris arundinacea in stone-lined bed of Pine Tree Brook just below Pope's Pond outlet. Species ID based habitat/location (Williams, 1970, A Revision of North American Epigean Species of Asellus (Crustacea: Isopoda)) and Smith, 1995, Keys to the Freshwater Invertebrates of Massachusetts). The only congener known from MA, A. racovitsai, prefers cold seeps and springs in inland locations. Larger images here

Images of this individual: tag all
water sowbug - Caecidotea - male water sowbug - Caecidotea - male water sowbug - Caecidotea - male water sowbug - Caecidotea - male rear venter, water sowbug - Caecidotea - male

Moved
Moved from Asellus.

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