Swords & Wizardry Fiends & Foes

From publisher blurb:

Fiends and Foes adds over 300 monsters to the ones in the Swords & Wizardry rulebook, over 40 of which are brand-new, written for this book. Others include monsters that were originally in Monstrosities, but are now updated with morale numbers and corrected XP values to bring them in line with Swords & Wizardry Revised. Encounter the bizarre plant-animal Ultharians on their plane-shifting flamingoes, the giant, foul-mouthed fey cats known as Bulgrimalkins, along with many old favorites from Monstrosities such as the Artificers of Yothri!