Copilia
Encyclopedia
Copilia is a genus of copepod
Copepod
Copepods are a group of small crustaceans found in the sea and nearly every freshwater habitat. Some species are planktonic , some are benthic , and some continental species may live in limno-terrestrial habitats and other wet terrestrial places, such as swamps, under leaf fall in wet forests,...

s in the family Sapphirinidae
Sapphirinidae
Sapphirinidae is a family of parasitic copepods, containing the following genera:*Copilia Dana, 1849*Saphirinella Claus, 1863*Sapphirina J. Thompson, 1830*Terebellicola M. Sars, 1861*Vettoria C. B. Wilson, 1924...

. The eyes
Arthropod eye
The arthropods ancestrally possessed compound eyes, but the type and origin of this eye varies between groups, and some taxa have secondarily developed simple eyes...

 of Copilia have two lenses, arranged like those in a telescope
Telescope
A telescope is an instrument that aids in the observation of remote objects by collecting electromagnetic radiation . The first known practical telescopes were invented in the Netherlands at the beginning of the 1600s , using glass lenses...

. The genus contains the following species:
  • Copilia asiaticus (F. Dahl, 1894)
  • Copilia atlantica Lubbock, 1856
  • Copilia brucii Thompson, 1888
  • Copilia denticulata Claus, 1863
  • Copilia elliptica Giesbrecht, 1891
  • Copilia fultoni T. Scott, 1894
  • Copilia hendorffi F. Dahl, 1894
  • Copilia lata Giesbrecht, 1891
  • Copilia longistylis Mori, 1933
  • Copilia mediterranea (Claus, 1863)
  • Copilia mirabilis Dana, 1852
  • Copilia nicaeensis Leuckart, 1859
  • Copilia oblonga Giesbrecht, 1891
  • Copilia pellucida (Haeckel, 1864)
  • Copilia quadrata Dana, 1849
  • Copilia recta Giesbrecht, 1891
  • Copilia vitrea (Haeckel, 1864)
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