Back ثيودور جيل Arabic ثيودور جيل ARZ Theodore Nicholas Gill Catalan Theodore Nicholas Gill German Θίοντορ Τζιλ Greek Theodore Gill Spanish Theodore Gill Basque تئودور گیل Persian Theodore Nicholas Gill Finnish Theodore Nicholas Gill French
Theodore Nicholas Gill (March 21, 1837 – September 25, 1914) was an American ichthyologist, mammalogist, malacologist, and librarian.