FIGURES 10–21 in Taxonomy of the freshwater crabs of Costa Rica, with a revision of the genus Ptychophallus Smalley, 1964 (Crustacea: Decapoda: Pseudothelphusidae)

FIGURES 10–21. Ptychophallus colombianus (Rathbun 1896): 10, left first gonopod, INPA 1845, caudo-mesial view; 11, same data, latero-cephalic view of distal part; 12, outline of left first gonopod, INPA 1654, caudo-mesial view; 13, same data, INPA 1659; 14, same data, NHMW 4001. Ptychophallus costaricensis Villalobos, 1974: 15, right first gonopod, paratype, UCR-MZ 719, latero-cephalic view of distal part; 16, same data, caudo-mesial view. Ptychophallus goldmanni Pretzmann, 1965: 17, left first gonopod, holotype, USNM 54044, caudo-mesial view; 18, same data, cephalic-apical view of distal part; 19, same data, latero-cephalic view of distal part. Ptychophallus kuna Campos & Lemaitre, 1999: 20, left first gonopod, holotype, USNM 184340, latero-cephalic view of distal part; 21, same data, caudo-mesial view (dr, disto-caudal ridge; lp, lateral process; me, mesial process; mp, marginal process). Scale bars = 1 mm.