Complex sentence: The French anatomist Henri Marie Ducrotay de Blainville first identified the two lateral teeth of the lemuriform toothcomb as canines in 1840, despite that the first lower premolars following the toothcomb are usually shaped like typical canine teeth (caniniform) and assume their function.
Split into simpler sentences: The French anatomist Henri Marie Ducrotay de Blainville first identified the two lateral teeth of the lemuriform toothcomb as canines in 1840. With the lack of lower canine teeth, the first lower premolars following the toothcomb are usually shaped like typical canine teeth (caniniform) and assume their function.