hard corals text index | photo index
Phylum Cnidaria > Class Anthozoa > Subclass Zoantharia/Hexacorallia
Photo index of hard corals on Singapore shores
Colony boulder-shaped, corallite brain and maze patterns




Lobed brain coral
Lobophyllia sp.



Grooved brain coral
Symphyllia sp.



Cabbage coral

Trachyphyllia geoffroyi



Jigsaw maze
favid coral

Family Faviidae



Other maze
favid coral

Family Faviidae
Colonies 15-20cm, hemispherical with flat tops. Thick with many prominent 'teeth', forming irregular lobes (2-5cm) or meandering valleys with separate walls. Colours blue, green, purplish. Commonly seen on many of our Southern shores. Colonies 15-20cm, hemispherical and rather flat. Thick walls with prominent 'teeth', forming with wide valleys (2-3cm wide). There is usually a slight dent or groove along the top of the wall between the corallites. Colours blue, green. Sometimes seen on some of our shores. Solitary free-living coral 15-20cm. Meandering folded form with wide valleys and tall walls. Sometimes called Banana coral because, when submerged, the polyp inflates into smooth curved shapes. Sometimes seen on some of our Southern shores. Colonies 10-20cm, hemi-spherical shape, some nearly ball-shaped. Corallites have shared meandering walls creating short, crooked valleys that resembles a jigsaw puzzle. Colours seen include pale beige, brown, green, blue and purple. Commonly seen on many of our Southern shores. Colonies 15-30cm, boulder-shaped. Corallites have shared meandering walls sometimes with long valleys, in others, short irregular polygons. Colours seen include pale yellow, pink, brown, green and blue. Sometimes seen on some of our shores.
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photo index of
cnidarians on this site
Phylum Cnidaria
with hard skeleton

polyp shape
long tentacles

colony shape
  leafy

crinkled


plate


branching
  thick branches
thin branches
  boulder
  Corallite shape
ring
hexagonal
brain or maze

others

colony unattached
(mushroom hard coral)
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