Tantã is a very important and well-known brazilian instrument that replaces surdo when in small gatherings, such as "rodas de samba" or "rodas de choro".

Here is the related wikipedia page, in english:

https://en.wikipedia.org/wiki/Tan-tan

For further information (such as pictures, links and alternative names, displayed in bold), refer to the portuguese version of the wikipedia page:

https://pt.wikipedia.org/wiki/Tantã

rebolo, but it might be a smaller version? need more research if another instrument or just an alias
tantan aka tintin aka REBOLO aka tantã
https://saisaibatake.ame-zaiku.com/gakki/gakki_jiten_tantan.html
https://saisaibatake.ame-zaiku.com/gakki/gakki_jiten_tantan2.html
https://ja.wikipedia.org/wiki/タンタン_(楽器)

https://pt.wikipedia.org/wiki/Tantã
seems the tantaquita or rebolo is a smaller tan-tan