Catalaphyllia
Monotypic genus of stony coral from the western Pacific.
Catalaphyllia is a genus of stony coral that contains only one species, Catalaphyllia jardinei. Found in the western Pacific Ocean, it belongs to the family Euphylliidae. Commonly called elegance coral, wonder coral, or ridge coral, it was originally named Pectinia jardinei by William Saville-Kent in 1893. Its striking appearance has made it a popular choice for reef aquariums, leading to heavy wild collection. However, the greatest dangers to this coral are climate change effects, such as bleaching from warmer waters and more frequent severe storms.
The coral features large, visible polyps that sit on a branching skeleton made of corallite. Each polyp has unusually long, large tendrils and a fleshy oral disc. Colors include fluorescent green, lime green, and brown. Catalaphyllia can reproduce both sexually and asexually; asexual reproduction occurs when new branches bud off and drop away to form separate colonies. Like many photosynthetic corals, it hosts zooxanthellae—dinoflagellates that turn sunlight into sugar for energy. It also has a mouth, which it uses to consume food gathered by its tendrils, a behavior similar to that of sea anemones.
This coral is common on reefs in the western and central Pacific Ocean, and occasionally appears in the eastern Indian Ocean. Its range extends north to Japan and south to northern Australia. It lives in both shallow and midwater parts of the reef, preferring areas with strong water movement or currents. It is usually found in sandy spots rather than on rocky surfaces.
Quick Facts
- Taxon
- Catalaphyllia jardinei
Facts from the source article.
Lore & Background
Catalaphyllia was first described by William Saville-Kent in 1893 as Pectinia jardinei. It is a monotypic genus, meaning it contains only one species, Catalaphyllia jardinei. This coral has very large, visible polyps that develop on a large, branching corallite skeleton, each polyp sporting unusually large, long tendrils and a large, fleshy oral disc. It can come in several colours: fluorescent green, lime green, and brown.
Catalaphyllia can reproduce sexually, but also asexually by budding new branches that drop off to form satellite colonies. Like most photosynthetic coral, this species hosts zooxanthellae, dinoflagellates that convert sunlight into sugar for energy. Like a subset of other corals, it also has a 'mouth' that it uses to ingest bits of other food gathered by its large tendrils, with behavior and adaptation similar to those of sea anemones.
This coral is commonly found on reefs in the western and central Pacific Ocean, as well as occasionally in the eastern Indian Ocean. Its range is said to extend as far north as Japan, and south to northern Australia. It can be present on both the shallow and midwater parts of a reef, and prefers water that is strongly agitated or exposed to significant currents. It is commonly seated in sandy areas, rather than directly on rocks.
Reader's Guide
Catalaphyllia is significant primarily for its popularity in reef tanks due to its unique and beautiful look. However, this popularity has led to overexploitation, as it is collected in large quantities from the wild for the aquarium trade. Despite this, the main threats to the species remain the effects of climate change, such as bleaching resulting from increasing water temperature and more frequent severe storms. The coral's description includes very large, visible polyps with unusually large, long tendrils and a fleshy oral disc, available in fluorescent green, lime green, and brown. Its reproductive strategies include both sexual reproduction and asexual budding, where new branches drop off to form satellite colonies. Ecologically, it hosts zooxanthellae for photosynthesis and also feeds by ingesting food gathered by its tendrils, similar to sea anemones. Its distribution spans the western and central Pacific Ocean, occasionally the eastern Indian Ocean, from Japan to northern Australia, favoring strongly agitated or current-exposed water and sandy substrates rather than rocks. The legacy of Catalaphyllia is thus tied to its aesthetic value in aquariums and the conservation concerns arising from its collection and climate change impacts.
Frequently Asked Questions
What is Catalaphyllia?
Catalaphyllia is a monotypic genus of stony coral in the family Euphylliidae, containing only the single species Catalaphyllia jardinei. It is native to the western Pacific Ocean and is well known among reef hobbyists for its large, visually striking polyps.
What are the common names for Catalaphyllia?
Hobbyists and divers most often call it elegance coral, wonder coral, or ridge coral. These nicknames reflect the dramatic, sculptural look of its polyps and the ridged structure of its skeleton.
Who originally described Catalaphyllia and when?
The species was first named Pectinia jardinei by the British naturalist William Saville-Kent back in 1893. It has since been reclassified into its own genus, Catalaphyllia, as the sole representative.
Why is Catalaphyllia so popular in reef aquariums?
Its bold, large polyps and dramatic coloration make it a showpiece for advanced reef tanks. This popularity has unfortunately driven heavy wild collection from western Pacific reefs to supply the aquarium trade.
What are the biggest threats to Catalaphyllia in the wild?
Climate change is the primary danger, triggering coral bleaching when ocean temperatures rise and exposing colonies to more frequent, intense storms. These combined stressors are degrading the western Pacific reefs where the species lives.
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