equatorial circle

The attraction-spheres are near one side of the ovum, and are connected with its periphery by a cone of fibres forming a polar circle, _p. c._; _e. c._, equatorial circle.

Darwin, and After Darwin (Vol. 1 and 3, of 3) An Exposition of the Darwinian Theory and a Discussion of Post-Darwinian Questions George John Romanes 1871

(Compare again Fig. 36 G.) _p. c._, polar circle; _e. c._, equatorial circle; _c. c._, central particle.

Darwin, and After Darwin (Vol. 1 and 3, of 3) An Exposition of the Darwinian Theory and a Discussion of Post-Darwinian Questions George John Romanes 1871