Charles Tate Regan was a British

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 ichthyologist

Ichthyology

Ichthyology is the branch of zoology devoted to the study of fish. This includes skeletal fish , cartilaginous fish , and jawless fish...

, working mainly around the beginning of the 20th century. He did extensive work on fish classification schemes.

Born in Sherborne

Sherborne

Sherborne is a market town in northwest Dorset, England. It is sited on the River Yeo, on the edge of the Blackmore Vale, east of Yeovil. The A30 road, which connects London to Penzance, runs through the town. The population of the town is 9,350 . 27.1% of the population is aged 65 or...

, Dorset

Dorset

Dorset , is a county in South West England on the English Channel coast. The county town is Dorchester which is situated in the south. The Hampshire towns of Bournemouth and Christchurch joined the county with the reorganisation of local government in 1974...

, he was educated at Derby School

Derby School

Derby School was a school in Derby in the English Midlands from 1160 to 1989. It had an almost continuous history of education of over eight centuries. For most of that time it was a grammar school for boys. The school became co-educational and comprehensive in 1974 and was closed in 1989...

 and Cambridge University

University of Cambridge

The University of Cambridge is a public research university located in Cambridge, United Kingdom. It is the second-oldest university in both the United Kingdom and the English-speaking world , and the seventh-oldest globally...

 and in 1901 joined the staff of the Natural History Museum

Natural History Museum

The Natural History Museum is one of three large museums on Exhibition Road, South Kensington, London, England . Its main frontage is on Cromwell Road...

, where he became Keeper of Zoology, and later director of the entire museum, in which role he served from 1927 to 1938.

Regan was elected Fellow of the Royal Society

Royal Society

The Royal Society of London for Improving Natural Knowledge, known simply as the Royal Society, is a learned society for science, and is possibly the oldest such society in existence. Founded in November 1660, it was granted a Royal Charter by King Charles II as the "Royal Society of London"...

 in 1917.

Regan mentored a number of scientists, among them Ethelwynn Trewavas, who continued his work at the British Natural History Museum.

Among the species he described is the Siamese Fighting Fish

Siamese fighting fish

The Siamese fighting fish , also known as the betta , is a popular species of freshwater aquarium fish. The name of the genus is derived from ikan bettah, taken from a local dialect of Malay...

 Betta splendens. In turn, a number of fish species have been named regani in his honour:

• Anadoras regani
  Anadoras regani
  Anadoras regani is a species of catfish of the family Doradidae....
  
  
• Apistogramma regani
  Apistogramma regani
  Apistogramma regani is a species of South American dwarf cichlid.It is a benthopelagic freshwater fish found in the Rio Negro tributary of the Amazon Basin.The specific name is in honour of the British ichthyologist Charles Tate Regan....
  
  
• Apogon regani
• Astroblepus regani
• Callionymus regani
  Callionymus regani
  Callionymus regani is a species of ray-finned fish in the genus Callionymus.It is to be found in the western Indian Ocean....
  
  
• Cetostoma regani
• Crenicichla regani
• Diaphus regani
• Engyprosopon regani
• Gambusia regani
• Hemipsilichthys regani
• Holohalaelurus regani
• Hoplichthys regani
• Hypostomus regani
• Julidochromis regani
• Lycozoarces regani
• Neosalanx regani
• Symphurus regani
• Trichomycterus regani
• Tylochromis regani
• Vieja regani
• Zebrias regani