Cobbia zhangi Uang & Sui 2024, sp. nov.
Creators: name: Uang, Mian
name: Sui, Xinxin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Chromadorea
Monhysterida
Xyalidae
Cobbia
Cobbia zhangi

description: Updated key to valid and the new species of Cobbia zhangi sp. nov. (based on Datta et al. 2018 and Wang et al. 2018)
1. Tail elongated flagelliform.............................................................................. 2
- Tail non-flagelliform................................................................................... 7
2. Buccal cavity with three similar equal-sized teeth............................................................ 3
- Buccal cavity with one large dorsal and two small subventral teeth.............................................. 4
3. Body longer than 2.7 mm, tail with posterior third filiform part, amphidial fovea 20% c.b.d.................. C. triodonta
- Body shorter than 1.6 mm, tail with posterior three fourths filiform part, amphidial fovea 33%–38% c.b.d.. C. zhangi sp. nov.
4. Paired spicules unequal, gubernaculum with dorsal apophyses...................................... C. heterospicula
- Paired spicules equal in length, gubernaculum without dorsal apophyses.......................................... 5
5. Anterior sensilla arrangement 6+10.............................................................. C. kamenevi
- Anterior sensilla arrangement 6+12....................................................................... 6
6. Distance of amphidial fovea from the anterior end is 3.8–4 times amphidial fovea diameter.............. C. trefusiaeformis
- Distance of amphidial fovea from the anterior end is less than three times amphidial fovea diameter............ C. urinator
7. Anterior sensilla arrangement 6+10....................................................................... 8
- Anterior sensilla arrangement 6+12...................................................................... 11
8. Inner labial setae 2.5 µm, amphidial fovea located farther than 30 µm from the anterior end.................................................................................................. C. caledonia Warwick & Platt, 1973
- Inner labial setae 3.5–7 µm, amphidial fovea located less than 30 µm from the anterior end........................... 9
9. Male and female tail conico-cylindrical and of similar length............................................. C. sinica
- Male tail conical, female tail conico-cylindrical and longer than of male......................................... 10
10. Cephalic setae 13–17 µm long, amphidial fovea 5–6 µm wide....................................... C. bengalensis
- Cephalic setae 22–26 µm long, amphidial fovea 10 µm wide............................................ C. dentata
11. Buccal cavity with three equal-sized teeth, gubernaculum with dorsal apophysis........................... C. truncata
- Buccal cavity with one large and two small teeth, gubernaculum without apophysis............................................................................................. C. macrodentata Lo Russo & Pastor de Ward, 2012
description: Published as part of Uang, Mian & Sui, Xinxin, 2024, Description of Amphimonhystrella sinica sp. nov. and Cobbia zhangi sp. nov. of the family Xyalidae (Nematoda: Monhysterida) from the Yellow Sea, China, pp. 343-354 in Zootaxa 5471 (3) on page 352, DOI: 10.11646/zootaxa.5471.3.4, http://zenodo.org/record/12190148