Glyoxylic Acid
CHO COOH or CH (OH)2 COOH, a thick liquid, readily soluble in water, but can be prepared in the crystalline condition by long standing over sulphuric acid, in which case the compound has the second formula given above. It is found in young beets, unripe apples, plums, gooseberries, rhugenerally mines in leaves. GLYPHIPTERYGIDE (glif-ip"te-rij' i-dē), a family of moths, group Tineina.
The larva has 16 legs or is apodal. It generally mines in leaves.
GLYPTODIPTERINI (-i'ni), in the classification of Professor Huxley, a family of fossil ganoid fishes, sub-order Crossopterygidæ. There are two dorsal fins, the scales are sculptured, the pectoral fins acutely lobate, dendition dendrodont. There are two sub-families, the one with rhomboidal, and the other with cycloidal scales. Under the latter family fall the genus Holoptychius, etc.