Joannes Charles Melchior (Joannes) Chatin (1847–1912)

French zoologist, anatomist, and comparative physiologist. Doctor of medicine, 1871; of natural sciences, 1873. Lecturer in botany at the École supérieure de pharmacie, 1874–6. Worked in Henri Milne-Edwards’s laboratory, 1875–7. Lecturer in zoology, anatomy, and comparative physiology at the Sorbonne, 1877–8; assistant professor, 1886; professor of histology, 1899–1912.