[Amphipoda] This section of an amphipod bears seven pairs of uniramous legs called pereopods I-VII. Pereopods I and II also are termed gnathopods I and II. Pereopods are 7-articulated: the first article, attached to the body, is termed coxa (or coxal plate), article 2 - basis, article 3 - ischium, article 4 - merus, article 5 - carpus, article 6 - propus or metacarpus, and article 7 - dactyl. However, coxa and dactyl are often (including this review) the only terms used, other articles being referred to by their numbers.

Alternative form for Pereon : Thorax.