Lemur of mouse lemurs, the gray mouse lemur ("M. murinus"), golden-brown mouse lemur ("M. ravelobensis"), and Goodman's mouse lemur ("M. lehilahytsara") were considered the same species until recently, when genetic tests identified them as cryptic species. The lemur dentition is heterodont (having multiple tooth morphologies) and derives from an ancestral primate permanent dentition of . Indriids, sportive lemurs, the aye-aye, and the extinct sloth lemurs, monkey lemurs, and koala lemurs have reduced dentitions, having lost incisors, canines, or premolars. The ancestral deciduous dentition is , but young indriids, aye-ayes, koala lemurs, sloth lemurs, and probably monkey lemurs have fewer deciduous teeth.
For Lack of a Better Name For Lack of a Better Name For Lack of a Better Name is the fourth studio album by Canadian electronic music producer Deadmau5. It was released on September 22, 2009 in the United States and Canada by Ultra Records and Mau5trap and internationally on 5 October 2009 by Virgin Records. The album features collaborations with MC Flipside ("Hi Friend!") and Rob Swire of Pendulum ("Ghosts 'n' Stuff"). The album also contains the critically acclaimed song "Strobe". It is deadmau5's first album to be released internationally on the Virgin Records label. A music video for "Ghosts 'n' Stuff" was released in