diacresis
Transverse groove on posterior of exopod (rarely also endopod) of uropod appendage, in some forms dividing exopod into 2 movably connected parts [Moore and McCormick, 1969].
Transverse groove on posterior part of exopod (also rarely of endopod) of uropod; sometimes dividing exopod into 2 movable parts [McLaughlin, 1980].

Crustacea glossary. . 2011.

Look at other dictionaries:

  • diacresis — see diaeresis …   Dictionary of invertebrate zoology

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