Transformation of the Leucothoides Morph to the Anamixis Morph (Amphipoda)
Journal of Crustacean Biology
Males of Leucothoides pottsi transform into males of Anamixis hanseni in one ecdysis, during which some of the mouthparts degenerate and in which gnathopod 2 changes from a small appendage to a giant form. Leucothoides is therefore a junior synonym of Anamixis. The families Leucothoidae (which continues to comprise Leucothoe and similar genera) and Anamixidae are, however, maintained separately by redefining Anamixidae on the basis of reductions in coxa 1 and the mandibular palp, and de-emphasizing the formerly important overall reductions in mandibles and maxillae of adult male Anamixis.
James Darwin Thomas and J. L. Barnard. 1983. Transformation of the Leucothoides Morph to the Anamixis Morph (Amphipoda) .Journal of Crustacean Biology , (1) : 154 -158. https://nsuworks.nova.edu/occ_facarticles/618.