Total valence electrons in a rhodium complex
This is not a benzene ligand ($\ce{C6H6}$), but rather a phenyl ligand ($\ce{C6H5}$).



In the benzene complex, all the carbons have their hydrogens. The pi electrons of the ring act as donors to the metal. On the other hand, in the phenyl complex, the ring carbon bonded to the metal does not have its hydrogen. That carbon is formally negatively charged and the lone pair on carbon acts as a donor to the metal.

Aryl ligands, just like alkyl ligands, count as 1-electron donors within the "covalent" electron-counting system (which you seem to be using, since you counted H and Cl as 1e donors as well).

Therefore the total electron count is $9 + 1 + 1 + 2 +2 + 1 = 16$.