other cnidarians text index | photo index
Phylum Cnidaria > Class Anthozoa > Subclass Alcyonaria/Octocorallia > Order Alcyonacea > Family Alcyoniidae
Photo index of leathery corals on Singapore shores
leathery colonies with small polyps < 1cm





Omelette
leathery coral

Sacrophyton sp.



Pinwheel
leathery coral

Lobophytum sp.



Starry
leathery coral

Sinularia brassica



Starry
leathery coral

Sinularia brassica
 
Colony circular 30-50cm or larger, without ridges or finger-like structures. The edges may be highly ruffled underwater. Common tissue may be pink, yellow, orange, greenish or brown. Has siphonozooids Also has autozooids with long slender body columns (1-2cm), 8 white branched tentacles. Coral rubble. Commonly seen on our Southern shores. Colony circular 30-50cm or larger, with radiating ridges or lobed flaps. Common tissue may be pink, orange, greenish, maroon or brown. Has siphonozooids. Also has autozooids with short bodies (about 1cm) with 8 white branched tentacles. Coral rubble. Commonly seen on our Southern shores. Colony (10-15cm) thick, disk-like with highly ruffled ridges with fingers or bumps. Common tissue with large spindle-shaped structures, colour pinkish, beige, yellowish. Only one kind of polyp (autozooid), tiny (0.2cm), transparent, 8 short cylindrical tentacles with tiny branches, the body column hardly seen. Polyps clustered on the edges of the disk, with fewer in the middle of the disk. In reefs. Sometimes seen on some of our shores.    
       
This is NOT a leathery soft coral



Smooth
leathery coral

Sinularia sp.



Pimply
leathery coral

Lobophytum sp.
 



Leathery sea fan
Family Gorgoniidae
Colony 10-15cm or larger with round or finger-like structures. Common tissue bright white. No siphonozooids. Autozooids tiny (0.5cm) with short body column and 8 brown branched tentacles. Colony is white when the polyps are completely retracted and brown when the polyps are expanded. Coral rubble. Commonly seen on our Southern shores. Colony 20-50cm or larger with sturdy branches tipped with rounded or finger-like structures. Common tissue is pale pink or orange sometimes lilac. No siphonozooids. Autozooids are tiny (0.5cm or smaller) with a short body column and 8 branched tentacles. Coral rubble. Sometimes seen on our Southern shores. Colony circular 20-40cm or larger, usually with long finger-like structures. Common tissue usually pinkish sometimes with tinges of purple. Has siphonozooids that form 'pimples' on the surface. Also autozooids with short fat body columns (about 1cm) with 8 white branched tentacles. Coral rubble. Sometimes seen on our Southern shores.   50cm-1m. Colony bushy, long stems not frequently branched. Cylindrical, thick (1cm) fleshy and leathery, with a wire-like central support sometimes exposed at the tips. Dusky pinkish beige. On coral reefs. Often seen on our Southern shores.

how to tell apart


photo index of
cnidarians on this site
Phylum Cnidaria
with soft body

solitary
  jellyfish
and jelly-like


anemones
and anemone-like

colonial
  bushy

fern-like

feathery

leathery

stick-like

thin branching
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