New records of Ericthonius didymus Krapp-Schickel, 2013 (Crustacea: Amphipoda: Ischyroceridae) in European waters with a focus in Arcachon Bay, France and key to Ericthonius species
Gouillieux, B.; Ariyama, H.; Costa, A.C.; Daffe, G.; Marchini, A.; Micael, J.; Ulman, A. (2020). New records of Ericthonius didymus Krapp-Schickel, 2013 (Crustacea: Amphipoda: Ischyroceridae) in European waters with a focus in Arcachon Bay, France and key to Ericthonius species. J. Mar. Biol. Ass. U.K. 100(3): 401-412. https://dx.doi.org/10.1017/s0025315420000247
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154; e-ISSN 1469-7769, more
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| Keywords |
Identification keys
New records
Amphipoda [WoRMS]; Ericthonius didymus Krapp-Schickel, 2013 [WoRMS]
Atlantic [Marine Regions]
Marine/Coastal |
| Author keywords |
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| Authors | | Top |
- Gouillieux, B.
- Ariyama, H.
- Costa, A.C.
- Daffe, G.
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- Marchini, A.
- Micael, J.
- Ulman, A.
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| Abstract |
The amphipod Ericthonius didymus Krapp-Schickel, 2013 is reported for the first time outside its type locality in European waters, from the French Atlantic coast and from the Azores, Portugal. In particular, a large population was recorded in Arcachon, France. Molecular analyses were made to confirm the validity of three closely related Ericthonius species: E. didymus, E. convexus and E. pugnax. An identification key is provided, distinguishing Ericthonius species into three groups, based on the presence or absence of stridulating ridges on coxa 2 and posterodistal lobe on basis of male pereopod 5. |
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