Petalomera, Stimpson, 1858

Key to species of Petalomera View in CoL (modified from McLay & Ng 2007)

1. Carapace margin behind lateral rostral teeth distinctly eave-like, merus of P3 petaloid............................... 2

- Carapace margin behind lateral rostral teeth not eave-like, merus of P3 flattened but not petaloid...................... 3

2. Carapace surface sparsely granulate; eave-like carapace margin behind lateral rostral teeth distinctly not granulate; lateral rostral teeth separated by a V-shaped sinus; three distinct anterolateral teeth; length to width of ratio of propodus of P3 and P4 less than 1.0, dactyli strongly hooked but not opposable to the small propodal spine........ Petalomera pulchra Miers, 1884 View in CoL

- Carapace covered in small rounded granules; carapace margin behind rostral teeth weakly eave-like granulate; lateral rostral teeth separated by a U-shaped sinus; three broad, granulated anterolateral teeth (less clear because of granules); length to width of ratio of propodus of P3 and P4 more than 1.0, dactyli curved and opposable to large propodal spin............................................................................................... Petalomera longipes Ihle, 1913 View in CoL

3. Carapace highly domed, surface covered with large blunt granules (may be areolate) especially on anterior half; carapace regions not marked by deep grooves; lateral rostral teeth separated by a V-shaped sinus; no distinct anterolateral teeth; dactyli of P4 and P5 opposable to small propodal spines.............................. Petalomera granulata Stimpson, 1858 View in CoL

- Carapace not highly domed, surface covered with unevenly distributed vesiculous granules; carapace regions marked by deep grooves; the lateral rostral teeth separated by a U-shaped sinus; variable number of small granular anterolateral teeth; dactyli of P4 and P5 opposable to large propodal spines...................................... Petalomera indica Alcock, 1900 View in CoL