The corpus luteum is the temporary endocrine structure formed in the ovary after ovulation. It is responsible for the release of hormones like progesterone, estrogen, etc.
The pineal gland is a small endocrine gland in the brain of animals. The pineal gland produces melatonin that modulates sleep patterns in both circadian and seasonal cycles.

Corpus cardiacum: In insects, it is located posterior to the brain and function in the storage and secretion of a brain hormone.

The corpus allatum (plural: corpora allata) is an endocrine gland that generates juvenile hormones.