Euthyonidiella, Heding & Panning, 1954

publication ID	https://doi.org/ 10.11646/zootaxa.5128.1.6
publication LSID	lsid:zoobank.org:pub:6BB58C2A-323F-4DE4-A0CA-3140428D1D3B
DOI	https://doi.org/10.5281/zenodo.6498165
persistent identifier	https://treatment.plazi.org/id/4150A955-FF8B-A562-FF2C-FE8DE0ACFC1B
treatment provided by	Plazi
scientific name	Euthyonidiella
status

Identification key to the genus Euthyonidiella View in CoL

1. Table ossicles with spire formed with four pillars............................................................ 2

- Table ossicles with spire formed with two pillars….......................................................... 6

2. Table ossicles with square or rectangular shaped disc….............................................. E. arenicola View in CoL

- Table ossicles with circular shaped disc….................................................................. 3

3. Support modified table ossicles which consist of a spire absent in tube feet.......................… E. zulfigaris sp. nov.

- Support modified table ossicles which consist of a spire present in tube feet…..................................... 4

4. Spire of support modified table ossicles in tube feet with support bars forming a net-like appearance....... E. tungshanensis View in CoL

- Spire of support modified table ossicles in tube feet tack-like without support bars…................................ 5

5. Rosette ossicles present in tentacles…............................................................... E. dubia View in CoL

- Rosette ossicles absent in tentacles…............................................................. E. aculeata View in CoL

6. Support modified table ossicles present in tube feet…........................................................ 7

- Support modified table ossicles absent in tube feet…......................................................... 9

7. Spire of support modified table ossicles in tube feet not tack-like….............................................. 8

- Spire of support modified table ossicles in tube feet tack-like…......................................... E. ambigua View in CoL

8. Support modified table ossicles in tube feet with spire ending with few short spines….................... E. kyushuensis View in CoL

- Support modified table ossicles in tube feet with spire ending in two diverging spines…....................... E. zacae View in CoL

9. Rod ossicles absent in tentacles; thick elongate perforated plate present in tentacles….......................... E. huwi View in CoL

- Rod ossicles present in tentacles; thick elongate perforated plate absent in tentacles.............................. …10

10. Rosette ossicles absent in tentacles…........................................................... E. destichada View in CoL

- Rosette ossicles present in tentacles….................................................................... 11

11. Support rods present in tube feet…............................................................ E. occidentalis View in CoL

- Support rods absent in tube feet…................................................................... E. trita View in CoL