Littlest Pet Shop Horse
Over the years Hasbro toys has released approximately 19 33 littlest pet shop horse toys. I will attempt to give a brief description of each of the horses as well as giving the corresponding number for each one as well.
littlest pet shop pink fanciest horse #592
The first pet horse they ever released was #124. These particular littlest pet shop toys come in two variations. Both ponies have a saddle and have aqua eyes although one has white hair while the other has brown hair.
The first released was available as a pet pair, and was also available in the 10 pack of pets. You can also get these original littlest pet shop horses from the Kohls tricks and talents bonus set. 
The second released horse of the same number also known as a variant was released as part of the BJs bonus set.
The second to be released was littlest pet shop horse #337 he has brown fur, came with a yellow hat and a red scarf, he does not have a saddle. The little horse can be found in the race about ranch as well as three packs of pets. Also available in the same race about ranch set was #338 which is a white horse also with no saddle is available with a Red Hat and a few other accessories.
Next in the list is the littlest pet shop #403, he is a cream colored target diorama pet and came with a blue saddle.
Horse number 405 is tan with pink saddle and was available as a target single this one has a pearlized paint on the hoofs and main.
Next up is a black-and-white horse #523 he is black with purple eyes and no saddle he is a member of the sportiest series which means he has what appears to be an upside down coma in his pupils. He was available in the race about ranch number two that was released in the beginning of 2008.
His buddy who is also available in the second race about ranch is gray with blue eyes, has no saddle is also a sportiest pet and his number is 524.
Another target diorama horse released in 2008 was number 560 he is also tan with pink saddle and orange hooves, with a cream colored main
.
When Hasbro released the next cuddliest series they were quick to add a new white horse with brown hair brown and eyes, a purple saddle he is #578 and was available as a single pet.
Another in the cuddliest series is #584 which is a white horse with brown hair, green eyes and a pink saddle, this one was available in a portable pets gifts set.
#587 is also a cuddliest horse and is cream-colored with tan hair a purple saddle and pink hooves and is also available in a portable pets gifts set.
Next up is the fanciest littlest pet shop horse #592, this little girl is pink with blue eyes and no saddle, she was available in the 10 pack of pets released in early 2008.
Sportiest horse #627 is Brown with brown fuzzy hair and blue eyes and was available in pairs or a portable pet.
In the winter of 2008 Hasbro released the Chilliest Littlest Pet Shop Horse #684, this little beauty was released in 2008 sledding fun set she is tan with brown hair and purple eyes and also came with a saddle.
Horse #739 is white with green eyes and sports a beautiful brown muzzle with white hair she did not come with a saddle and is a member of the fanciest series she was available as a single pet.
Fanciest littlest pet shop horse #770is a white beauty with brown hair, sports a blue saddle with blue and purple eyes she was released as a portable pets gifts set in early 2009
Messiest horse #840 was released in 2008 she is tan with cream-colored hair blue eyes and also came with a saddle she was released with the littlest pet shop purses.
littlest pet shop horses complete listing of numbers:
124, 337, 338, 403, 405, 523, 524, 560, 578, 584, 587, 592, 627, 684, 739, 770, 840, 1081, 1097, 1331, 1431, 1499, 1512, 1605, 1616, 1621, 1629, 1709, 1776, 1820, 1879, 1880, 1881
Pony#1081 caramel colored cowgirl pony! This one has double blue eyes and comes with an orange hat This was released for the seasonal halloween collection in 2009. She has light tan body and blonde/yellow mane and tail with caramel hooves.
The beautiful #1097 is a Walmart Exclusive 2008 hungriest pet exclusive white pony with pink saddle and two tone blue eyes and included a jumping hurdle, corn, reins, hat & post
1331 was originally released in the Littlest Pet Shop Barnyard Pets Farm set with two toned green eyes and LPS tattoo on rear leg with mauve hooves, tail and mane
1431 this one is tan with matching hooves and has a blonde tail and mane with mint and green eyes also has the tattoo on the rear left leg.
1499 is a Walmart Exclusive with cream colored body, caramel mane and tail with brown hooves and light blue and sky blue eyes with lashes. Originally came in a pair with a lavender boxer puppy and a few accessories like a leash for puppy and reigns for horsey.
1512 is a single with a cream body, rose colored mane and tail, yellow saddle with brown hooves and pink/rose colored eyes and She comes with a gold race winners cup.
1605 has a caramel colored body, blonde mane and tail, brown hooves and a creme muzzle with double blue eyes.This one originally came as a pair with a bunny with carrots.
1616 this little white horse comes in the playfully plaid Blythe set, that being said it obviously comes with many decorations on her mane and tail which are light brown. Brown hooves on this Horse also. A plaid blanket draped over the back and has a pink apple on her chest with light and baby blue eyes.
1621 The floral tan pony/horse has a tan body, lavender tail and mane with caramel hooves and mint green eyes.There are flowers adorned over the hind quarters and upon her head hair also and she has pink ears.
1629 was released in 2010 this marble palomino styled horse has a two toned body color indicative of the species with a blonde mane and tail. With brown hooves and the off white tipped ears and muzzle and hind quarters this one is a particularly cute LPS horse. The saddle is a match to the eyes being aqua colored.
1709 is a white pony with a blonde tail and mane, matching muzzle, tan/brown eyes and she comes with a pink removable necklace. Her grey hooves are a unique feature of these LPS horses.
1776 is a taupe bodied horse with with matching darker mocha colored mane tail and hooves. It has a pink, non removable saddle and double blue eyes with pink ears and nostrils.
1820 the grey unicorn pony is a first of its kind with a removable pearly white unicorn horn included. It sports chocolate coloerd hooves, tail and mane with a few white speckles on the fascial area and back with green and lighter green eyes. It was released as a pair with pet number 1819 a deer in a double pack.
1879 is a member of the pet triplet family with caramel body with freckles on her face and a blonde main with a pink bow and tail to match. It is in the sitting position and has lavender and purplish eyes. This one is rather hard to find and we do not have it yet.
1880 This one is in the same set as the preceding baby horse and is tannish with brown mane, tail and hooves. The double green and light green eyes with lighter face patch are kinda cool too.
1881 this is last in this particular set of pet triplets. It has a pale yellowish body with mauve mane and tail with caramel muzzle and hoofs. Double blue eyes and eyelashes finish off this little beauty.
These are all of the numbered horses that have been released to date that I am aware of I'm sure there will be others to follow but as of this post it is current.
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