Pleurostomatida Based
Creators: name: Zhang, Gongaote
name: Zhao, Yan
name: Chi, Yong
name: Warren, Alan
name: Pan, Hongbo
name: Song, Weibo
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Gymnostomatea
Pleurostomatida

description: KEY TO GENERA WITHIN THE ORDER PLEUROSTOMATIDA Based on previous reports (Wu et al., 2017; Pan et al., 2020) and the present work, a revised key to the genera is provided here:
1. Glabrous region in anterior of right side present …............................................................................. 2
Glabrous region in anterior of right side absent …............................................................................... 4
2. Leftmost left kinety (LK n) terminates at anterior end of cell …........................................................... 3
Leftmost left kinety (LK) does not terminate at anterior end of cell ...........................… Pseudolitonotus
n
3. Right somatic kineties anteriorly shortened along rightmost full kineties …..................... Apolitonotus
Right somatic kineties progressively shortened anteriorly from middle towards dorsal and ventral margins …............................................................................................................................ Paralitonotus
4. Middle right somatic kineties anteriorly shortened to form a suture …............................................. 5
Middle right somatic kineties not shortened to form a suture ….......................................................... 10
5. Middle right somatic kineties shortened posteriorly to form a suture …..................... Kentrophyllum
Middle right somatic kineties not shortened posteriorly to form a suture .......................................... 6
6. Spoon-like excavation in anterior region present …........................................................ Amphileptiscus
Spoon-like exca vation in anterior region absent…...................................................................................7
7. Left perioral kinety forming a circle …................................................................................... Opisthodon
Left perioral kinety not forming a circ le ….................................................................................................8
8. Right and left perioral kineties do not cross and reach posterior of cell ….......................................... 9
Right and left perioral kineties cross and do not reach posterior end of cell …................ Apoamphileptus
9. Oral slit extends nearly to posterior end of cell …....................................................... Pseudoamphileptus
Oral slit does not extend nearly to posterior end of cell …..................................................... Amphileptus
10. Right somatic kineties anteriorly shortened along rightmost full kineties ….................... Protolitonotus
Right somatic kineties anteriorly shortened along perioral kinety.................................................... 11
11. Extrusomes absent along dorsal margin ….......................................................................................... 12
Extrusomes present along dorsal margin …....................................................................................... ... 13
12. Spoon-like excavation present …................................................................................................ Acineria
Spoon-like excavation absent …..............................................................................................., Litonotus
13. Without string-like oral bulge ….......................................................................................... Loxophyllum
With string-like oral bulge…........................................................................................... Siroloxophyllum
description: Published as part of Zhang, Gongaote, Zhao, Yan, Chi, Yong, Warren, Alan, Pan, Hongbo & Song, Weibo, 2022, Updating the phylogeny and taxonomy of pleurostomatid ciliates (Protista: Ciliophora) with establishment of a new family, a new genus and two new species, pp. 105-123 in Zoological Journal of the Linnean Society 196 (1) on page 120, DOI: 10.1093/zoolinnean/zlac028, http://zenodo.org/record/7035078