This Day in History: 1837-03-21

Theodore Nicholas Gill (1837 – 1914) was born on this day.
He was a US ichthyologist associated with the Smithsonian for over 50 years. Gill produced more than 500 papers over the course of his career, the majority (388) dealing with fish, others covering birds, mammals, molluscs, and general biology. Among his most influential works was his Arrangement of the Families of Fishes (1872), a classification of fishes which formed the basis for the arrangement of the Smithsonian’s collection and was used by ichthyologists for many years afterwards.

Gill appears to have described more than 750 taxa and is honoured in the names of three genera of fishes and in the names of a number of species under gilli and gillii.