1. Some essential morphological and histological features of the very early and nearly mature testes inChanos are described. 2. Similar accounts of four important stages in the maturation of the ovary and the intraovarian eggs are given. 3. A study of the ova diameter measurements in the limited material indicates that the fish normally spawns only once a year. The type of spawning in the species, egg production, size at maturity and breeding habits are discussed in the light of these observations. The probable lines on which further data may be usefully gathered are also briefly indicated.
- 1 - sciences appliquees, technologies et medecines
- 2 - sciences biologiques et medicales
- 3 - sciences biologiques fondamentales et appliquees. psychologie