(Dana, 1849)
Females: Posterior corners of Pr pointed. P2 Exp2 with outer proximal edge invaginate. More characters can be accessed by backtracking the key:
Page 637
Males: 5 C inner edge without teeth. P2 Exp2 with invaginated outer proximal border. More characters can be accessed by backtracking the key:
Page 1195: Copepoda: Family Calanidae (in part, 2) males