Elements of natural history

anal animals appear arched armed base Beak bears birds body bones bony bound branchial rays called canines characters CLASS close cloth colour compressed conical covered crest deep dentated Division dorsal ears edge Edition eggs England English eyes FAMILY feathers feed feet fishes five flat flattened flesh fore four frequently front GENERA GENUS Grammar Greek grinders head hind holes horns incisors insects Latin latter legs less live longer look lower membrane middle mouth muzzle nails neck nest never nostrils notched operculum ORDER palate pass pectorals placed plates pointed preoperculum projecting PROPER resemble round scales Series sharp short side skin slender soft teeth sometimes species spines straight strong Subgenus TABLE tail teeth thick toes tongue trees Tribe upper ventrals whole wide wings young