Typhlochactas Mitchell, 1968

Francke, Oscar F., Vignoli, Valerio & Prendini, Lorenzo, 2009, A New Species of Typhlochactas (Scorpiones, Typhlochactinae) from Eastern Mexico, American Museum Novitates 3647, pp. 1-12 : 3

Key to species of Typhlochactas Mitchell, 1968

1. Prolateral pedal spurs absent........... 2

– Prolateral pedal spurs present.......... 4

2. Cheliceral fixed finger, median and basal teeth fused into a bicusp......... T. granulosus

– Cheliceral fixed finger, median and basal teeth separate, not fused.................. 3

3. Cheliceral movable finger with four dorsal teeth..................... T. cavicola

– Cheliceral movable finger with five dorsal teeth...................... T. rhodesi

4. Cheliceral fixed finger, median and basal teeth fused into a bicusp............ T. reddelli

– Cheliceral fixed finger, median and basal teeth separate, not fused.................. 5

5. Cheliceral fixed finger with four teeth........................... T. sissomi , n. sp.

– Cheliceral fixed finger with three teeth.... 6

6. Cheliceral movable finger with four dorsal teeth..................... T. sylvestris

– Cheliceral movable finger with three dorsal teeth..................... T. mitchelli Fig. 2. Typhlochactas sissomi , n. sp., subadult $ holotype (CNAN T-0308), habitus. A. Dorsal aspect. B.