Parthenoecia Chavtur, 2018

Chavtur, Vladimir G. & Bashmanov, Alexander G., 2018, Pelagic ostracods of the new subtribe Conchoeciina (Ostracoda, Crustacea) from the North Pacific, Zootaxa 4516 (1), pp. 1-127 : 101

Key for species of genus Parthenoecia Chavtur , gen. nov.

1 Left asymmetrical gland is placed less than 20% of the distance between the dorso-posterior corner and the rostrum tip..... 2

- Left asymmetrical gland is placed more than 20% of the distance between the dorso-posterior corner and the rostrum tip............................................................................. P. pseudoparthenoda ( Angel, 1972) .

2 Left asymmetrical gland is placed less than 10% of the distance between the dorso-posterior corner and the rostrum tip, capitulum of frontal organ in the female is rounded..................................... P. crassispina ( Chen & Lin, 1987) .

- Left asymmetrical gland is placed 10–16% of the distance between the dorso-posterior corner and the rostrum tip, capitulum of frontal organ in the female is pointed............................................... P. parthenoda ( Müller, 1906) .