1.  sand viper(n = noun.animal) cerastes, cerastes cornutus, horned asp, horned viper - highly venomous viper of northern Africa and southwestern Asia having a horny spine above each eye;
is a kind of viper
is a member of aspis, genus aspis, genus cerastes

2.  sand viper(n = noun.animal) hognose snake, puff adder - harmless North American snake with upturned nose; may spread its head and neck or play dead when disturbed;
is a kind of colubrid, colubrid snake
is a member of genus heterodon, heterodon

asp viper, banded sand snake, beach sand verbena, common viper, desert sand verbena, gaboon viper, george sand, horned viper, pink sand verbena, pit viper, sand, sand badger, sand bar, sand berry, sand blackberry, sand cast, sand cat, sand cherry, sand crack, sand cricket, sand dab, sand devil's claw, sand dollar, sand dropseed, sand dune, sand eel, sand flea, sand fly, sand grouse, sand hopper, sand lance, sand launce, sand leek, sand lizard, sand martin, sand myrtle, sand painting, sand phlox, sand rat, sand reed, sand sage, sand sedge, sand shark, sand snake, sand sole, sand spurry, sand stargazer, sand tiger, sand trap, sand tumor, sand verbena, sand wedge, sweet sand verbena, viper, water viper, western sand cherry, yellow sand verbena