Major Groups | Crustacea (crustaceans) | Malacostraca (malacostracans) | Amphipoda (sideswimmers) Note: Key from King & Bradbury 2012 |
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1. 3rd uropod reduced; ramus, if present, minute; mandibles (M) without palps
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-3rd uropod prominent and biramous (with few exceptions); mandibles (M) with palps (P)
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