You will find the species reported to have the structure in the structure's Central Directory. If it is known to exist in the human, macaque, and/or rat, you will find a source for that information listed.

Try it! Find the species in which substantia innominata has been reported. (It may be useful to print these instructions.)

1. Click in the control bar below.

2. Click in the sidebar.

3. Scroll to the name of the structure, substantia innominata.

4. Click substantia innominata.

You will see that the substantia innominata has been called by five different names in three different species, including humans (H. sapiens), rats (Rattus) and monkeys (the longtailed macaque, Macaca fascicularis).