Coralliidae (Nonaka & Muzik, 2010)

Nonaka, Masanori, Muzik, Katherine & Iwasaki, Nozomu, 2012, 3428, Zootaxa 3428, pp. 1-67 : 5

Key to the species of Coralliidae from Japanese waters

1 Colony branched in one plane............................................................................ 2

- Colony bushy; coenenchymal mounds distributed all around the colony.......... Paracorallium inutile ( Kishinouye, 1902)

2 Coenenchymal mounds distributed predominantly on one side of the colony....................................... 3

- Coenenchymal mounds distributed around the colony................................... Corallium uchidai sp. nov.

3 Coenenchymal mounds cylindrical, taller than wide.......................................................... 4

- Coenenchymal mounds hemispherical, wider than tall or same size.............................................. 5

4 Axis cream-white, coenenchyme light yellow in color......................... * Corallium boshuense Kishinouye, 1903

- Axis pink, coenenchyme light red, twigs yellow in color......................... Corallium sulcatum Kishinouye, 1903

5 8-radiate sclerites abundant in the coenenchyme............................................................. 6

- 6-radiate sclerites abundant in the coenenchyme............................................................. 7

6 Coenenchyme thick and firm, orange; axis white; double-clubs present............. Corallium pusillum Kishinouye, 1904

- Coenenchyme thin, transparent; axis red; double-clubs absent.............. Paracorallium japonicum (Kishinouye, 1903)

7 Coenenchymal mounds clustered in groups; surface smooth....................... Corallium konojoi Kishinouye, 1903

- Coenenchymal mounds evenly distributed; surface with minute warts............................................ 8

8 Minute warts not visible to the naked eye; coenenchyme and axis crimson-red to salmon-pink.................................................................................................... Corallium elatius ( Ridley, 1882)

- Minute warts distinct; coenenchyme and axis whitish; double-clubs most abundant............ Corallium gotoense sp. nov.