Mesaiokeras tantillus

Andronov, 1973

Females: Inner marginal seta absent on P1 B. Posterior corners of Pr symmetrical. R absent. More characters can be accessed by backtracking the key:
Page 774: Copepoda: Family Mesaiokeratidae females

Males: P5 penultimate segment (segment 4) without any spine distally; distal end of the segment 5 without finger-like projection, but with 2 long spines. More characters can be accessed by backtracking the key:
Page 1113

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