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"Honeycomb", Brain Corals, More and Less, Family Faviidae, pt. 2

To: Part 1, Part 3

By Bob Fenner


Genus Favia Oken 1815. One of the most widely distributed (though not that common) genera of stony corals. Most corallites circular, uniform in appearance. Plocoid (corallites that are conical with their own walls). Genus and family named for Greek: "Honeycomb" (favus) which the regular size, arrangement of corallites approaches. 

Favia albidus Veron 2000. Usually small, rounded colonies. Corallites crowded, monocentric with thickened septa which extend as large teeth over the corallite wall. Red Sea endemic. DF macro image.  

Favia fagrum (Esper 1797). Small colonies that may be encrusting or hemispherical. Corallites of variable shape, with one to many mouths. Bahamas and aquarium images. 

Favia favus (Forskaal 1775). Massive or flat colonies. Slightly irregular, conical corallites of about 12 mm diameter. N. Sulawesi images. 

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Favia laxa (Klunzinger 1879). Hemispherical colonies whose corallites are conical, showing both extra- and intertentacular budding. Paliform lobes look like an internal crown. Fine line of demarcation between costae. Pale to pinkish brown in color. Common in the Red Sea where this picture was made. 

Favia matthai Vaughan 1918. Small, massive colonies. Corallites circular, rounded with regular, thick septal teeth. Crown-like paliform lobing between the corallites. Usually brown or grey w/ contrasting walls. Bali 2014

Favia maxima Veron and Pichon 1977. Small, massive colonies. Corallites with regular, thick septa. Crown-like paliform lobing between the corallites. Cebu, Philippines image. 

Favia cf. pallida (Dana 1846). Hemispherical colonies of rounded, crowned corallites of about 10 mm. in diameter. Septa regular/uniform. Distributed from the Red Sea, East Africa to the Tuamotus. Image made in Nuka Hiva, Marquesas, Polynesia. 

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Favia rosaria Veron 2000. Sub-massive to encrusting colonies to a meter across. Corallites low-walled, close together, up to 20 mm in size. Flat (non-exsert) septo-costae. Pinkish brown walls with pale oral discs. Bali 2014

Favia speciosa Dana 1846. Massive colonies, corallites closer/further distanced depending on depth. Further apart with increase. Many color varieties with contrasting schemes. Aquarium photo. 

Favia rotundata (Veron and Pichon 1977). Domed to flat in shape. Corallites larger than many Favias, to 22 mm in diameter. Fleshy in appearance. Red Sea images. 

Favia stelligera (Dana 1846). Colonies of round to columnar/colonial in appearance, sometimes a few meters across. Uniform septa and walls (not shared). Brown to green in color. Red Sea upper gulf photos.

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Genus Favites   Similar to the Genus Favia, but with Cerioid corallites. Massive, boulder like colonies, with corallites sharing walls.)

Favites abdita (Ellis and Solander 1876). Colonies massive, rounded or hillocky. Corallites likewise rounded, with thick walls. Septa straight, with exsert teeth. Below: Bunaken, Sulawesi, Indonesia and Right: Red Sea images where it is common. 

Favites complanata (Ehrenberg 1834). Colonies massive, with corallites slightly angled, with thick walls. Paliform lobes weak, septae strong. Costae form a "star" where three corallites converge. Bali 2014

Favites flexuosa (Dana 1846). Hemispherical or flat colonies. Corallites deep with contrasting colored septa and centers. Septal teeth large, paliform lobes weak. Red Sea image. 

Favites halicora (Ehrenberg, 1834). Typically made up of irregular massive shapes. Corallites 11-13 mm in diameter. Yellow-tan to greenish color. Here in the Gulf of Aqaba, Red Sea and Fiji.  

Favites pentagona (Esper 1794). Here in S. Leyte 2013

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Genus Goniastrea Milne Edwards and Haime 1848. Massive colonies of thick, encrusting plates to large boulders. Corallites either circular or elongate, tightly packed, share interconnecting walls and calices.

Goniastrea aspera Verrill 1905. Corallites with angular shape, with long, thick septa. Often have light colored central areas. Aquarium image.

Goniastrea edwardsi Chevalier 1971. Corallites slightly angular, with thick, rounded walls. Irregular septa that taper toward the columella.  Thick paliform lobes. Tan to brown in color, possibly with orange centers. Red Sea image. Common, up to or more than a meter across.

Goniastrea pectinata (Ehrenberg 1854). Here in S. Leyte 2013

Goniastrea ramosa Veron 2000. Small irregular colonies that look like clumps of small branches sticking straight out. The only branching member of the genus. Bunaken, Sulawesi, Indonesia image. 

Goniastrea retiformis (Lamarck 1816). Common species in its wide range. Colonies encrusting to hilly to columnar to boulder-like. To over a meter in diameter. Corallites four to six sided, with alternating series of septa that are thin-walled and straight. Fiji images.

To: Part 1, Part 3

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