即使不同的patterns,colors,shapes,也或許是相同的species。外表非常類似,卻可能是完全不同的
species。
引述幾段話,FYR...
Aquarists attempting to identify a "mystery coral" must face the fact it might be nothing
more than a morphological variant of a known species.
The presence of ecotypes and ecomorphs are common in stony corals. Ecotypes are 
variants of species that differ in appearance due to some degree of genetic variation 
and varing degrees of environmental modification. Ecomorphs are corals that are 
geneticlly similar, yet have strongly divergent appearances based on environmental 
influences.
      --AQUARIUM CORALS Selection, Husbandry, and Natural History by Eric H. Borneman