Anytime ten or more ranine are found together, one of them will be a 4+3 HD specimen with 27 HP with the same treasure as other ranine. A defeated leader ranine is worth 325 xp.
The frog-like ranine serve the demon lord Tsath-Dagon. Ranine don't look very formidable, but they have three attacks per round, one of which has the possibility of paralyzing the victim. A paralyzed victim make re-try a saving throw in subsequent rounds to throw off the effect, with a cumulative +1 bonus.