Phallangothelphusa

Cardona, Luisa & Campos, Martha R., 2012, A new species of freshwater crab of the genus Phallangothelphusa Pretzmann, 1965, from Colombia (Crustacea: Decapoda: Pseudothelphusidae), Zootaxa 3515, pp. 83-88 : 88

Key to the species of the genus Phallangothelphusa (modified from Campos 2005, 2010)

1. First gonopod with proximal projection of mesial process rectangular or square ( Fig. 3 A, B; Campos 2010: fig. 2A)...... 2

- First gonopod with proximal projection of mesial process reduced and finger–like ( Campos 2005: figs. 41A, C).................................................................................................. P. magdalenensis

2. First gonopod with end portion of distal projection of mesial process strongly recurved upwards ( Campos 2010: figs. 2 A–C)............................................................................................ P. j u a n s e i

- First gonopod with end portion of distal projection of mesial process not recurved upwards ( Fig. 2 A).................. 3

3. First gonopod with angle of curvature between distal and proximal projections of mesial process near 60° ( Fig. 3 B). P. dispar

- First gonopod with angle of curvature between distal and proximal projections of mesial process greater than 90° ( Fig. 3 A)................................................................................... P. martensis new species

Figures

FIGURE 2. Phallangothelphusa martensis new species, male holotype, ICN-MHN-CR 2656. A, left first gonopod, caudal view; B, same, lateral view; C, same, mesial view; D, same, cephalic view; E, apex distal view; F, second gonopod, caudal view; G, distal part of second gonopod. 1, distal projection of mesial process; 2, curvature; 3, proximal projection of mesial process; 4, lateral process.

FIGURE 3. Phallangothelphusa martensis new species, male holotype, ICN-MHN-CR 2656, left first gonopod: A, apex distal view; Phallangothelphusa dispar (Zimmer, 1912), ICN-MHN-CR 0 732, left first gonopod: B, apex, distal view. 1, distal projection of mesial process; 2, curvature; 3, proximal projection of mesial process; 4, lateral process.