Farran, 1929
Females: Forehead usually strongly vaulted. Distance (L) between spiniform processes 2 and 3 of P3 B equal to or more than 2.0 times proximal width (D) of process 3; process 2 and 3 uniformly tapering from base. CR more than 1.65 times as long as wide. More characters can be accessed by backtracking the key:
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Males: P3 B with spiniform processes 1-3 slender and tapering uniformly from base. CR more than 1.6 times as long as wide. More characters can be accessed by backtracking the key:
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