Paramononchus

Gagarin, Vladimir G. & Naumova, Tatyana V., 2012, Paramononchus orientalis sp. n. and Ethmolaimus maximus sp. n. (Nematoda) from Lake Baikal, Russia, Zootaxa 3513, pp. 51-60 : 55

Key to species of Paramononchus

1. Body over 3 mm long..................................................................................2

- Body less than 3 mm long............................................................................... 3

2. Buccal cavity 64– 68 x 30–32 µm size; spicules 208–238 µm long........................................ orientalis

- Buccal cavity 44– 48 x 19–21 µm size; spicules 70 µm long.............................................. arcticus

3. Body 1.6 mm, c = 5.5........................................................................ thiocrenobius

- Body more 1.6 mm, c more 5.5........................................................................... 4

4. L = 2.5–2.9 mm, a = 32–40; buccal cavity 42– 46 x 15 µm size............................................. alimovi

- L = 1.73–2.17 mm; a = 21–28; buccal cavity 55– 67 x 20–25 µm size..................................... baikalensis