FIGURE 3. Alpheus christofferseni n in Three transisthmian snapping shrimps (Crustacea: Decapoda: Alpheidae: Alpheus) associated with innkeeper worms (Echiura: Thalassematidae) in Panama

FIGURE 3. Alpheus christofferseni n. sp., female paratypes from Atol das Rocas, Brazil (MNRJ 17926): a, second pereiopod, lateral view; b, third pereiopod, lateral view; c, same, distal propodus and dactylus; d, fourth pereiopod, lateral view; e, same, distal propodus and dactylus; f, fifth pereiopod, lateral view; g, same, propodus and dactylus, ventral view; h, second pereiopod of another specimen, carpus and chela; i, third pereiopod of another specimen, distal carpus, propodus and dactylus, lateral view. Scale bars: 1 mm.