Sapphirinidae

Distinguishable from other copepod families by the extreme sexual dimorphism in coloration: males with brilliant iridescent structural colors versus transparent females. The combination of bright metallic male coloration and complete female transparency is diagnostic for this family among Cyclopoida.

Males exhibit vivid, iridescent coloration ranging from bright blue to green and other metallic hues. Females are completely transparent, lacking any pigmentation. This color dimorphism represents one of the most pronounced sexual differences in copepod morphology.

Marine pelagic environments, primarily in open ocean waters.

Global marine distribution in pelagic zones; specific range boundaries not documented in available sources.

Males use their bright coloration to attract females for mating, as the transparent females are otherwise difficult to locate in open water.

Pelagic copepods serve as important components of marine zooplankton communities, contributing to nutrient cycling and forming part of the food web base.

• Other Cyclopoida familiesLack the extreme sexual color dimorphism; males and females typically similar in appearance or show less pronounced differences

• copepod
• marine
• pelagic
• sexual dimorphism
• structural coloration
• zooplankton

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• NCBI Taxonomy
• Catalogue of Life