Anyamal Tantei Kiruminzoo episode 19

It aired on Monday, 15 February 2010.

Shine! The seven colors smell?

Toshiki, unable to go to the Marine Museum with his father due to a sudden order for red rice, sneaks out of the house with his dog Toto to go see the coelacanth. After hearing from their classmate Akane that her younger brother Toshiki is gone, Riko and her friends begin searching for him by smell.