1 / 2 HD and Monster Templates

[Abrisene]

Monsters can have fractional CR, but I've yet to find anything about having fractional HD and would appreciate someone pointing out where to find clarification.

For example, the Bestiary pg.288 entry for Zombie has a chart that starts with a listing of 1/2 HD zombies being CR 1/8 and worth XP 50. The same entry has a HD chart that lists that zombies of size Small or Medium gain +1 HD, while Tiny of smaller are listed as having no change in their HD. The direct inference is that in order to keep a fractional HD of the base creature, it would have to be Tiny or smaller; yet there doesn't seem to be any in the Bestiary that don't list having a full HD, eg Familiar:Monkey pg.132 has full 1d8 HD (4hp avg), while being CR 1/4.

Please advise.

[Drejk]

It might be just a leftover of earlier incarnations of 3rd edition where 1/2 HD did actually appear. Now it might be just a redundant note in template.

[Tom Baumbach]

Drejk is correct, you will find no ½ HD creatures in Pathfinder RPG (and in compatible material, if the designer knows what's going on); ignore the entry under the zombie template, it's leftover.

[Abrisene]

Thanks, much obliged.