Sylvain Le Bris, Frankreich
Info
Polycyathus fuscomarginatus is a very small and rather inconspicuous solitary, large-polyp stony coral that forms colonies of loose, unconnected individual animals.
Polycyathus fuscomarginatus reproduces sexually, with mature gametes being released into the coelenteron and expelled through the mouth.
The release of gametes into the sea also leads to the geographical distribution of the species through drift.
Polycyathus fuscomarginatus was discovered in the Red Sea in 1879 and was first described as Phyllangia fuscomarginata Klunzinger, 1879.
The following data can be found in Klunzinger's first description:
"Corallum in small groups, usually attached to other corals, rarely with isolated calyxes. Corallites narrower at the base than at the tip. Larger diameter 3 to 5 mm (up to 7 mm according to KLUNZINGER), up to 10 mm high and about 2 mm deep. Epitheca not visible. Wall ribbed.
Septa in four cycles, the fourth incomplete in several calyxes. The first two cycles are larger than the others.
All septa are protruding and convex. The upper half of the septa has smooth edges, the lower half is jagged, with the last tooth forming a palus that merges into the papillose columella.
The sides of the septa are granular. The color of the septa and the inside of the fossa is usually light brown with white edges of the septa, or most of the caliciform structures are white.
Synonyms:
Phyllangia fuscomarginata Klunzinger, 1879 · unaccepted > superseded combination (basionym)
Phyllangia pallida Klunzinger, 1879 · unaccepted > junior subjective synonym
Polycyathus pallidus (Klunzinger, 1879) · unaccepted > junior subjective synonym
Polycyathus fuscomarginatus reproduces sexually, with mature gametes being released into the coelenteron and expelled through the mouth.
The release of gametes into the sea also leads to the geographical distribution of the species through drift.
Polycyathus fuscomarginatus was discovered in the Red Sea in 1879 and was first described as Phyllangia fuscomarginata Klunzinger, 1879.
The following data can be found in Klunzinger's first description:
"Corallum in small groups, usually attached to other corals, rarely with isolated calyxes. Corallites narrower at the base than at the tip. Larger diameter 3 to 5 mm (up to 7 mm according to KLUNZINGER), up to 10 mm high and about 2 mm deep. Epitheca not visible. Wall ribbed.
Septa in four cycles, the fourth incomplete in several calyxes. The first two cycles are larger than the others.
All septa are protruding and convex. The upper half of the septa has smooth edges, the lower half is jagged, with the last tooth forming a palus that merges into the papillose columella.
The sides of the septa are granular. The color of the septa and the inside of the fossa is usually light brown with white edges of the septa, or most of the caliciform structures are white.
Synonyms:
Phyllangia fuscomarginata Klunzinger, 1879 · unaccepted > superseded combination (basionym)
Phyllangia pallida Klunzinger, 1879 · unaccepted > junior subjective synonym
Polycyathus pallidus (Klunzinger, 1879) · unaccepted > junior subjective synonym
