- 科斗书 kēdǒushū tadpole scriptancient style of Chinese calligraphy with strokes resembling tadpoles, having large heads and thin tails
- 科斗字 kēdǒuzì tadpole scriptancient style of Chinese calligraphy with strokes that are thick at the head and thin at the tail, resembling tadpoles
- 科斗文 kēdǒuwén tadpole scriptAn ancient Chinese writing style from the Zhou Dynasty characterized by characters with thick heads and thin tails, resembling tadpoles; also known as [[蝌蚪文|蝌蚪文|ke1 dou3 wen2]].
- 科斗篆 kēdǒuzhuàn tadpole scriptancient style of Chinese calligraphy characterized by strokes with heavy heads and thin tails, resembling tadpoles