Amphipoda

Amphipods
Scuds (Crustacea)

Integrated Taxonomic Info. System, Jan. 26, 2000 (Order Amphipoda, Superorder Syncarida, Subclass Eumalacostraca, Class Malacostraca, Subphylum Crustacea, Phylum Arthropoda)
Grosse, D.J. Species profiles : life histories and environmental requirements of coastal fishes and invertebrates (Pacific Northwest). Amphipods, 1986: p. 1 (order Anphipoda [sic], subclass Malacostraca, class Crustacea)
Random House (amphipod: any of numerous small, flat-bodied crustaceans of the group Amphipoda, including the beach fleas, sand hoppers, etc.)
Syn. liv. org.: v. 2, p. 254 (order Amphipoda, superorder Peracarida, subclass Malacostraca) p. 241 (scuds and beach fleas (Amphipoda))
A synoptic classif. of living organisms, 1984: p. 211 (order Amphipoda, class Malacostraca, phylum Crustacea)
Lincoln, R.J. The Cambridge ill. dict. of natural history, 1987 (Amphipoda: sandhoppers; order of usually small peracaridan crustaceans)
Web. 3 (Scud: an amphipod crustacean)
Britannica Micro.: v. 1, p. 353 (amphipod or scud)