Fig. 2From: Methods to study organogenesis in decapod crustacean larvae. I. larval rearing, preparation, and fixationLarval development of the European shore crab Carcinus maenas L. (Decapoda, Brachyura, Portunidae). a The transition between the zoeal stages and metamorphosis I to Megalopa are characterized by moults (modified from [233]). b Ontogenetic change of appendage function during the double metamorphosis (see text for further details; from [35]). Md: mandibular segment, Mx1, Mx2: segments of 1st and 2nd maxilla; MP 1–3: maxillipeds 1–3 (corresponding to thoracomeres 1–3); P1–5: pereiopod one to five (corresponding to thoracomeres 4–8); PM1–6: pleomeres one to six; T1–8: thoracomeres one to eightBack to article page