I LOVE when this question comes up because I get to post my way cool Greek letters!! The question has really already been answered correctly but I'm gonna re-post this anyway. :thumb:
Nomenclature has always used Latin for classification. Not all the words or parts of words used in scientific names for living things are derived from Latin. Some are derived from Greek, some from languages local to the places where the organisms are found, and many from the names of the people who first described a species or other taxon. However all are treated grammatically as if they were Latin words. In particular this means that to indicate possession, the endings -a and -us turn into -ae and -i respectively, and non-Latin names of people add -i if male and -ae if female. This means that the "i" at the end of a species taxon is a pronounced as long "i" as in "night".
The species name "acei" is derived from the Latin word acer meaning sharp - referring to their teeth. In Greek spelling it's επίθ. The letter ε or "Epsilon" is a long "a" as in "pay".
Keep in mind, Latin is a dead language and there's really no correct way to pronounce it, just the most common.