Matching Pairs Nail DisordersOnline version Match the nail disorder to its also known as name. by Rosalind Carter 1 pincer nail 2 onychophagy 3 plicatured nail 4 Beau's lines 5 onychogryposis 6 koilonychia 7 leukonychia spots Also known as white spots. Also known as spoon nails. Also known as trumpet nail. Also known as folded nail. Also known as bitten nails. Also known as furrows. Also known as ram's horn.