Leucascus

publication ID	https://doi.org/ 10.11646/zootaxa.3619.3.3
publication LSID	lsid:zoobank.org:pub:92C07D63-F2F5-4898-A7FE-4937F4D5A043
DOI	https://doi.org/10.5281/zenodo.6153206
persistent identifier	https://treatment.plazi.org/id/038E706D-EC36-7466-FF17-2CDDC1B0FDC0
treatment provided by	Plazi
scientific name	Leucascus
status

Key to the species of Leucascus View in CoL

1. Skeleton composed only of triactines............................................................ L. protogenes View in CoL

- Skeleton composed of triactines and tetractines.............................................................. 2

2. Diactines present...................................................................................... 3

- Diactines absent....................................................................................... 4

3. Diactines are club-shaped....................................................................... L. clavatus View in CoL

- Diactines are microdiactines................................................................. L. albus View in CoL sp. nov.

4. Tripods are present.................................................................................... 5

- Tripods are absent..................................................................................... 6

5. Only normal tripods......................................................................... L. leptoraphis View in CoL

- Some tripods with a fourth rudimentary actine........................................................ L. lobatus View in CoL

6. Colour alive pink and atrial skeleton composed mainly of tetractines....................................... L. roseus View in CoL

- Atrial skeleton composed mainly of triactines............................................................... 7

7. Choanocyte tubes are mainly smooth............................................................... L. simplex View in CoL

- Choanocyte tubes are mainly hispid....................................................................... 8

8. Colour alive white....................................................................... L. neocaledonicus View in CoL

- Colour alive yellow....................................................................... L. flavus View in CoL sp. nov.