Tubastraea, Lesson, 1830

Yiu, Sam King Fung & Qiu, Jian-Wen, 2022, Fig. 4 in Fig. 2 in Fig. 9 in Fig. 1 in Fig. 20. A-E in Establishment of A New Bornean Genus of Gecarcinucidae (Crustacea: Brachyura), with Descriptions of Five New Species., Zoological Studies 61 (45), pp. 1-12 : 10

Key to species of Tubastraea

1a. Colony branching uniplanar ....................................................... 2

1b. Colony not branching uniplanar ................................................. 3

2a. Dark green, brown black coenosarc ....................... T. micranthus

2b. Orange coenosarc with yellow tentacles .... T. dendroida sp. nov.

3a. Colony plocoid ........................................................................... 4

3b. Colony non-plocoid .................................................................... 5

4a. Corallite with moderately deep and up to 48 septa .... T. coccinea

4b. Corallite with deep and spongy/shallow fossa and more than 48 septa ............................................................................ T. faulkneri

5a. Corallite elliptical ............................................... T. megacorallita

5b. Corallite non-elliptical ................................................................ 6

6a. Corallite cylindrical .................................................................... 7

6b. Corallite circular ......................................................................... 8

7a. Septal arranged in a Pourtalès plan ............... T. violacea sp. nov.

7b. Septal arranged normally ........................................................... 9

8a. Septal size: S 1> S 2 >> S 3> S 4 or S 1 = S 2> S 4 = S 3 .. T. diaphana

8b. Septal size: S 1> S 2> S 3 = S 4 .................... T. chloromura sp. nov.

9a. Corallite with moderately deep fossa and 3 septal cycles ............. ...................................................................................... T. floreana

9b. Corallite with deep fossa and 3 or 4 septal cycles .... T. tagusensis