Philodina
Creators: name: Song, Min Ok
name: Lee, Chang-Ho
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Rotifera
Eurotatoria
Bdelloidea
Philodinidae
Philodina

description: Key to the species of genus Philodina
1. Cerebral eyes absent.................................................................................. 2
- Cerebral eyes present................................................................................ 10
2. Dorsal toe pair always extended............................................................... P. duplicalcar
- Dorsal toe pair not always extended..................................................................... 3
3. Two pairs of spurs............................................................................. P. scabra
- One pair of spurs.................................................................................... 4
4. First foot pseudosegment with two small projections................................................... P. childi
- First food pseudosegment without any projections.......................................................... 5
5. Dental formula 4/4–5/5........................................................................ P. grandis
- Dental formula 2/2–3/3............................................................................... 6
6. Interspace between spurs narrower than spur base width..................................................... 7
- Interspace between spurs much wider than spur base width................................................... 8
7. Sulcus as wide as trochal disc width............................................................... P. rapida
- Sulcus much narrower than trochal disc width........................................................ P. plena
8. Interspace between spurs 2.5–3 times as wide as spur base width......................................... P. vorax
- Interspace between spurs much wider than 4 times of spur base width........................................... 9
9. Disc retractor V-shaped or bilobed medially........................................................ P. proterva
- Disc retractor slightly convex and trilobed medially............................................. P. koreana n. sp.
10. Trunk highly granulated; rostrum with collar-like protuberances proximoventrally; first foot pseudosegment with transverse ridge dorsally......................................................................... P. rugosa coriacea
- Trunk smooth...................................................................................... 11
11. Dorsal toe pair always extended a little or fully; upper lip concave medially....................... P. acuticornis odiosa
- Dorsal toe pair otherwise............................................................................. 12
12. Upper lip bilobed; spurs thumb-shaped and with small knob or sharp points at ends........................ P. flaviceps
- Upper lip arched and low; spurs conical, thin, long and curved outward.................................. P. roseola
description: Published as part of Song, Min Ok & Lee, Chang-Ho, 2017, A new and five rare bdelloids from Korea, pp. 529-547 in Zootaxa 4242 (3) on pages 534-535, DOI: 10.11646/zootaxa.4242.3.6, http://zenodo.org/record/376952