里 RI, sato - village
四+八+小 The "Yokome" radical - eye / HACHI, ya(ttsu), ya(tsu), ya, yo - eight / SHOU, chii(sai), ko - small
十+、+用 JUU, tou, to - ten / Comma / YOU, mochi(iru) - use, business
坴 RIKU, ROKU - clod of earth
利 RI, ki(ku) - interest, take effect
They all take the "fish" radical (魚 GYO, sakana, uo - fish) to become other characters.
鯉 RI, koi - carp
鰥 KEN, KAN, yamome - widow
鯆 FU, HO, iruka - dolphin
鯥 RIKU, mutsu - gnomefish
鯏 asari, ugui - clam