Mesaiokeras semiplenus

Andronov, 1973

Females: Inner marginal seta present on P1 B. Posterior corners of Pr equal in length, but slightly asymmetrical in shape. R present, small, thin. More characters can be accessed by backtracking the key:
Page 774: Copepoda: Family Mesaiokeratidae females

Males: P5 penultimate segment (segment 4) with short stout spine distally; distal end of segment 5 with long finger-like projection with small spinule and 2 adjacent apical spines. More characters can be accessed by backtracking the key:
Page 1113

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