Ƭ
The letter Ƭ (minuscule: ƭ), called T with hook, is a letter of the Latin alphabet based on the letter t. It is used some alphabets of African languages such as Serer and (in Burkina) Tamasheq.
The minuscule ƭ was formerly used in the International Phonetic Alphabet to represent a voiceless alveolar implosive (current IPA: [ɗ̥]). It was withdrawn in 1993.
Encoding
In Unicode, the majuscule and the minuscule are located at U+01AC Ƭ LATIN CAPITAL LETTER T WITH HOOK and U+01AD ƭ LATIN SMALL LETTER T WITH HOOK.