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Home > NEMENZO_CORAL_INDEX > CORAL_SCLERHELIA_DUBIA

Sclerhelia dubia

Sclerhelia dubia

Nemenzo, 1979

The available specimen, 14 cm high, is presumably a part broken off from a laxly branched colony. The main stem is vertical; branches arise at wide angles along its sides. Stems and branches sinuous; their diameter made irregular by corallites. Stem 9 mm across at base. Branches very gradually tapering – one 8 cm long, 8 mm at base, 4 mm across near tip.

Corallites unequally distant, vertical distance between successive corallites ranging from 2 to 6 mm, in form of low but distinct truncate swellings; no discernible pattern of distribution over long distances. Calices vertical, 2-2.5 mm diameter.

Septa laminar, in 3 cycles – usually around 20 – asymmetrical in development; even the primaries are not uniform in most corallites – 2 or 3 or 4 may be exsert and very thick while the others remain thin resembling the secondaries. Tertiaries are low ridges, not reaching columella. Septal edges and surfaces abundantly granulate or spinulate.

Columella a confused mass of tubercles contributed by the two cycles of septa – the tall pali of the secondaries incorporated in it so they are difficult to make out in their entirety; reaching level of mural rim.

Costae thick but very low so they appear merely as irregularities on the outer surface of calicinal wall.

Peritheca wide, solid; striations with granules and fine spinules discernible here and there, generally around calices where striations become continuous with costae. Greater part of surface smooth or almost so.

Remarks:
There is some doubt regarding the generic identity of this coral due to the irregularity of the construction of the corallite. The septal picture is asymmetrical, the pali are not distinct. On the species level, the present specimen differs from the three species mentioned by Wells (1954) – it has smaller corallites, without discernible pattern of distribution, tertiary septa do not unite with secondaries, columella very distinct and reaches level of calicinal wall.

Source:
Nemenzo, F. (1979). New species and new records of stony corals from west-central Philippines. The Philippine Journal of Science. 108 (1-2): 1-25.

Taxonomic status:
Taxon inquirendum (Uncertain)

Source:
WoRMS Editorial Board. (2024). World Register of Marine Species. Available from https://www.marinespecies.org at VLIZ. Accessed 2024-05-02. doi:10.14284/170

Material:
Plate III, Fig 2:SU CRS-001:North Bais Bay, Bais City (Lawton Alcala) 1977 (Depth - 10 feet)

Type specimen location:
Marine Sciences Laboratory, Siliman University, Dumaguete City

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