The word Premaxilae is misspelled against Premaxillae, which is plural of "Premaxilla"
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Premaxillae has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings premaxi & ae which should not be misspelled with single 'L'
Wrong Spelling:  premaxi-l-ae 
Correct Spelling:  premaxi-ll-ae 
Find more wrongly spelled words of Premaxillae to spell it well.