International Journal of Marine Science, 2016, Vol.6, No.14, 1-10
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Table 1 Comparison of attributes of two species of Faviidae.
Attributes
F. speciosa
F. pallida
Theform
of
corallite
Oval, strongly acting
Separated, can merge
Oval wrong, weakly exert, frequently merge
Calice
It is expressed distinctly
It is expressed seldom
Septa
Thin, lacerate and serrate
dentated, general number 26-42
Thin, it is weak thick. Lacerate and
spinulose dentated, general number 28-36
Paliform lobes
Can be distinct with a crown
No always distinct
Coenostium
It is always well expressed,
cystiphor
Expressed not always distinctly, cystiphor
Endothecal
dissepiment
Sub horizontal, large, on 1 sm of growth 20-24 plates
were postponed
Abruptly inclined, on 1 sm of growth 8-10 plates
were postponed
Exothecal
dissepiment
Numerous thin
Thick
Good examples of overlapping of values of skeletal characters of various species, and at the same time of their
recognition, were cited for the genus
Platygyra
(Veron et al. 1977). Partially overlapping of characters values can
be clearly seen, but on the other hand, in every species its inherent characters of wall width, corallite length and
width dominate (Figure 4). Such comparisons and construction of diagrams and graphics based on the data give
good results for any characters of all coral groups, both recent and fossil (Veron and Pichon, 1980; Tesakov, 1978;
Latypov, 1984, 2014).
Figure 4 Comparison of the mean valley length (top), mean valley width, and mean wall width
per corallum
of the
Platygyra species
indicated. All sizes in mm, on an axis of ordinates number of corolla (part after Veron et al., 1977).
