"First Series"

These horses only appeared in collections released before the herds were included in each card or their herd was never clarified.

Horses on official Bella Sara Checklist

 * Beauty
 * Blackie
 * Charlie
 * Dynamo
 * Ghost
 * Grey
 * Halloween
 * Honey
 * Jojo
 * King
 * Kio
 * Lucas
 * Nikita
 * Pedro
 * Rain
 * Saga
 * Santos
 * Sarah
 * Shadow
 * Shakira
 * Shaman
 * Starfighter
 * Sunny
 * Sweety
 * Walter
 * Yellow
 * Yin and Yang

Silver Cards Not on Official Checklist
There are some cards that can be found that are part of the silver series that are not listed on official checklists, but that were produced as part of the series. They can be found in a separate list below.
 * Butterfly
 * Coco
 * Dixie
 * Domino
 * Donna
 * Joy
 * Kiki
 * Lucky
 * Mandalay
 * Misla
 * Misty
 * Niki
 * Pegasus
 * Rainbow
 * Sandy
 * Speedy
 * Spirit
 * Twins