1.  ring snake(n = noun.animal) grass snake, natrix natrix, ringed snake - harmless European snake with a bright yellow collar; common in England;
is a kind of water snake
has particulars: natrix maura, viperine grass snake

2.  ring snake(n = noun.animal) ring-necked snake, ringneck snake - any of numerous small nonvenomous North American snakes with a yellow or orange ring around the neck;
is a kind of colubrid, colubrid snake
is a member of diadophis, genus diadophis

african coral snake, anchor ring, annual ring, asian coral snake, australian coral snake, banded sand snake, banded water snake, bearing ring, benzene ring, black rat snake, black snake, black-headed snake, blind snake, boxing ring, brass ring, bull snake, carpet snake, chicken snake, coachwhip snake, coffee ring, colubrid snake, common garter snake, common water snake, congo snake, coral snake, corn snake, curtain ring, eastern coral snake, eastern ground snake, eastern indigo snake, elapid snake, engagement ring, fairy ring, garter snake, gas ring, glass snake, glossy snake, gopher snake, grass snake, green snake, ground snake, growth ring, harlequin snake, heterocyclic ring, hognose snake, hoop snake, house snake, indian rat snake, indigo snake, joint snake, kayser-fleischer ring, key ring, king snake, leaf-nosed snake, life ring, lined snake, lock ring, lyre snake, milk snake, mourning ring, napkin ring, new world coral snake, night snake, nose ring, o ring, old world coral snake, parhelic ring, pine snake, pinion and ring gear, piston ring, plumber's snake, prize ring, rat snake, red rat snake, red-bellied snake, ribbon snake, ring, ring armature, ring armor, ring armour, ring blackbird, ring containment, ring dance, ring disease, ring finger, ring girl, ring in, ring lardner, ring mail, ring of color, ring out, ring ouzel, ring road, ring rot, ring rot bacteria, ring rot fungus, ring thrush, ring up, ring vaccination, ring winding, ring-necked snake, ringed snake, ringneck snake, rock snake, rough green snake, sand snake, sea snake, seal ring, signet ring, slinger ring, slip ring, smooth green snake, snake, snake charmer, snake dance, snake doctor, snake eyes, snake feeder, snake fence, snake fern, snake god, snake in the grass, snake mackerel, snake muishond, snake oil, snake palm, snake pit, snake plant, snake polypody, snake river, snake venom, snake wood, snap ring, sonoran lyre snake, spitting snake, storage ring, sweet-potato ring rot, teething ring, thunder snake, tiger snake, tow-headed snake, towel ring, vine snake, viperine grass snake, vortex ring, water snake, wedding ring, western blind snake, western coral snake, western ribbon snake, whip snake, whiskey ring, whisky ring, worm snake, wrestling ring