FIGURE 2. Alpheus christofferseni n in Three transisthmian snapping shrimps (Crustacea: Decapoda: Alpheidae: Alpheus) associated with innkeeper worms (Echiura: Thalassematidae) in Panama

FIGURE 2. Alpheus christofferseni n. sp., female paratype from Atol das Rocas, Brazil (MNRJ 17926) (a–e) and male holotype (MNRJ 17905) (f): a, female major cheliped, mesial view; b, same, distal merus, carpus and chela, lateral view; c, same, coxa to carpus, lateral view; d, female minor cheliped, mesial view; e, same, distal merus, carpus and chela, lateral view; f, male minor cheliped, distal merus, carpus and chela, lateral view. Scale bars: 1 mm.