(modified after Guerrero-Kommritz & Błażewicz-Paszkowycz 2004)
1. Uropod endopod two-articled............................................................................ 2
- Uropod endopod one-articled............................................................................6
2. Cephalothorax as long as broad............................................................ T. rotundicephala
- Cephalothorax longer than broad......................................................................... 3
3. Uropods shorter than length of pleotelson........................................................... T. dongo
- Uropods longer than length of pleotelson...................................................................4
4. Pleotelson as long as combined length of first two pleonites......................................... T. propinquus
- Pleotelson longer than combined length of first two pleonites................................................... 5
5. Antennule article-1 shorter than combined length of last three articles................................... T. unisetosa
- Antennule article-1 longer than combined length of last three articles.................................... T. forcifera
6. Uropods longer than pleotelson........................................................................... 7
- Uropods as long as, or shorter than, pleotelson.............................................................. 12
7. Pleotelson tapering posteriorly to a pointed or rounded apex.................................................... 8
- Pleotelson not tapering posteriorly; rounded apex........................................................... 10
8. At least one pereonite as long as wide, or longer than wide........................................... T. tuberculata
- All pereonites wider than long...........................................................................9
9. Pleonites 2–5 rounded lateral edges. Pleotelson longer than combined length of four pleonites............. T. busteri n. sp.
- Pleonites 2–5 straight lateral edges. Pleotelson as long as combined length of three pleonites................. T. profunda
10. Uropod basal article as long as endopod......................................................... T. kommritzia
- Uropod basal article shorter than endopod.................................................................11
11. Some pereonites longer than wide. Uropod basal article shorter than half of endopod....................... T. ochracea
- All pereonites wider than long. Uropod basal article more than half length of endopod.................... T. prolixcauda
12. Cheliped dactylus with proximal process on inner margin........................................... T. unguicillata
- Cheliped dactylus without proximal process on inner margin.................................................. 13
13. Uropod shorter than pleotelson. Pereopods 4–6 with ventral margin of propodus serrate............................. 14
- Uropod as long as pleotelson. Pereopods 4–6 with ventral margin of propodus not serrate........................... 16
14. Antenna article-4 without fusion line. Pereopod-1 basis margin with minute setae.............................. T. kimi
- Antenna article-4 with fusion line. Pereopod-1 basis margin without minute setae.................................. 15
15. Uropod more than two-thirds as long as pleotelson.................................................... T. kroyeri
- Uropod about half as long as pleotelson.......................................................... T. mclellandi
16. Basis of pereopods 1–3 longer than remainder of the pereopod...................................... T. paraforcifera
- Basis of pereopods 1–3 shorter than remainder of the pereopod........................................ T. eltaninae