英和和英

名詞

dolon (plural dolons)

1. A specialized elongated hollow structure that forms part of the carapace of a marine organism from the class Ostracoda, used for various purposes, such as locomotion, feeding, or sensory perception.
   • 1964, GFF - Volume 86, page 343:

     In forms with a modified outer antral fence, both this and the adjacent distal band of the domiciliar wall may be concave and form the antrum (Figs. 6 J-K; 7 B), and in some forms the antrum apparently is formed by the dolon alone (dolonal antrum).

   • 1991, Peter Colley Sylvester-Bradley, ‎David J. Siveter, A Stereo-atlas of Ostracod Shells - Volume 18, Part 1, page 4:

     Velum occurs as a narrow, rounded ridge forming the valve margin in lateral view, continuous posteriorly as the dolon in females.

   • 2011, N. Ikeya, ‎K. Ishizaki, ‎T. Hanai, Evolutionary Biology of Ostracoda, page 1045:

     In both cases the histial dolon is united anteriorly with the velar dolon and both genera are also similar in being unisulcate .