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