Not dumb at all, it's a great question with a rich story behind it, and one people often get wrong!Gonna sound pretty dumb but how do you actually pronounce bichir
Abushir and Abshire are the names used by fishers along the Nile River for bichirs. Saint-Hilaire (who first 'discovered' them during Napoleon's conquest of Egypt), heard the fisher's names for them and wished to use the same name when describing them, although he mistook the first letter as the word 'A', believing them just to be 'Bushir'. In typical French spelling, he spelled the name Bichir (Biʃir), with the 'ch' making a 'ʃ' / 'sh' sound. So, depending on your type of accent, Bih-sheer, Buh-sheer, (Western) Boo-sha, Bih-sha (African) are regarded as the correct pronunciations.
There could be an argument for the pronunciation 'Biker', as the ICZN says scientific names should follow Latin pronunciations, however the first description of bichir was not latinized, and by the time it was the following year, biʃir / bih-sheer was already accepted. There's a lot more to it than this of course, however most scientists prefer to leave old nomenclature untouched, as unearthing centuries of publications to find out what should be valid requires a lot of work with no real advance in science.
Hope this helps!