The gonads are pink in the males, and yellow in the females.
Gonads were moderately active in our specimens as early as mid-July.
In birds taken by Coultas in November the gonads were beginning to enlarge; specimens taken in December had swollen gonads.
The contents of the gonads drop into the central cavity and pass out through the mouth.
Four egg-sacs, or gonads, are conspicuous in horseshoe shape around the center of the disk.
The gonads, as in other Arthropoda, are hollow saccular organs, the cavity communicating with the efferent ducts.
Gonads generally extend into mantle and open at sides of kidneys.
Hypopi have been found in the gill chambers of a mollusk and in the gonads of a millipede (Baker and Wharton, 1952).
Stomachs and gonads were removed and preserved by standard techniques soon after specimens were killed.
The dates given to gonads were, in all instances, the dates when the specimens were killed.