It has a vestigial pelvic girdle, carried forward from its lizard ancestry. One appealing function examination help exam help Aniliidae snake family is its ovoviviparity Embryos develop within eggs, while they are still within exam help snakes body and are born live, unlike other snakes whose egg embryos develop external, and little ones hatch outside. This family examination help snakes comprises Leonards pipe snake, Webers pipe snake and exam help mountain pipe snake. Found in Malaysia, Indonesia and Borneo, snakes belonging to this family have small heads, with symmetrical shields, small eyes, smooth scales and short, blunt tails. Concentrated primarily in Africa and exam help Middle East, exam help Atractaspididae family examination help snakes includes 64 alternative species, adding Cameroon racer, Mole viper, Stilleto snake, Natal black snake and burrowing asps among others. These are small and most harmless snakes, with a few capable exam help inflicting tissue necrosis by a venom sting.