 Fifteen species of dragonfly have been recorded; as well as supporting the only population of downy emerald in the Mendips, the site hosts the notable four-spotted chaser ("Libellula quadrimaculata") and ruddy darter ("Sympetrum sanguineum").Five British species of amphibian occur and there are good populations of great crested newt ("Triturus cristatus"), smooth newt ("Triturus vulgaris") and palmate newt ("Triturus helveticus").Three species of reptile, viviparous lizard ("Lacerta vivipara"), adder ("Vipera berus"), grass snake ("Natrix natrix"), and at least two species of fish; European perch, ("Perca fluviatilis") and three-spined stickleback ("Gasterosteus aculeatus") are present.