European Sowbug Oniscidae asellus Linnaeus, 1758Non-native

There is 1 record in the project database.

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A European Sowbug in Harford Co., Maryland (12/4/2017). This represents a new family for MBP. Photo by Dave Webb. (MBP list)

A European Sowbug in Harford Co., Maryland (12/4/2017). Dave notes: Isopods have pseudotracheae (false lungs) that assist with respiration via gas exchange. They are located on the underside near the posterior end. In this photo, they are seen as five pairs of pearly gray, translucent appendages. Photo by Dave Webb. (MBP list)


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