You'll notice that the places that you see blue veins are in areas where the skin is thin and the blood vessel underneath is pushing up on it stretching the skin over it. Light hitting the dark color of the vein underneath the skin, in combination with the skin itself is what causes it to appear blue in these areas.
Common krait. The common krait (Bungarus caeruleus), also known as Indian krait or blue krait) is a species of venomous snake of the genus Bungarus found in the jungles of the Indian subcontinent. It is a member of the big four species, inflicting the most snakebites on humans in India.
Additional Information: Sansevieria trifasciata 'Magic Sword', also known as the snake plant and mother-in-law's tongue is an evergreen herbaceous perennial plant forming dense stands that spreads by way of its creeping rhizome, which can be found either above or below ground.amed snake plant for the way the leaves twist and mother-in-law's tongue for their sharp blade like appearance, the leaves grow vertically from a basal rosette.