comedy The Palace of Truth by W. S. Gilbert, which premiered in London on 19 November 1870, nearly one and a half weeks prior to the date written on the preface of Gray's manuscript (also published in London). The comedy featured characters bearing all three names: King Phanor (sic), Mirza, and Azema. The authors concluded that Gray had seen the comedy and then based the names of three lemur genera on its characters. Evolution Based on studies using morphology, immunology, repetitive DNA, SINE analysis, multilocus phylogenetic tests, and mitochondrial genes (mtDNA), giant mouse lemurs are most closely related to mouse lemurs within the family Cheirogaleidae, and together they form a clade with the hairy-eared dwarf lemur (Allocebus). Both dwarf lemurs and fork-marked lemurs are more distantly related, with fork-marked lemurs being either a sister group of all cheirogaleids, or more closely related to sportive lemurs (Lepilemur). Although Mirza, Microcebus, and Allocebus form a clade within Cheirogaleidae, the three lineages are thought to have diverged during a narrow window of time, so the relationships within this clade are difficult to determine and may change with further research. All three are thought to have diverged at least 20 mya (million years ago), although another estimate using mtDNA places the divergence between Mirza and Microcebus at 24.2 mya. Divergence between the two recognized species of giant mouse lemur is estimated at 2.1 mya. Description Though giant mouse lemurs are relatively small cheirogaleids, they are more than three times larger than the smallest members of the family, the mouse lemurs. Their body weight averages . At around , their bushy and long tail is longer than their head-body length, which averages . Their forelimbs are shorter than the hind limbs (with an intermembral index of 70), a trait shared with mouse lemurs. The skull is similar to that of dwarf and mouse lemurs, and the auditory bullae are small. Like other cheirogaleids, the dental formula for giant mouse lemurs is ; on each side of the mouth, top and bottom, there are two incisors, one canine, three premolars, and three molars—a total of 36 teeth. Their upper teeth converge towards the front of the mouth, but are straighter than those in mouse lemurs. The first upper premolar (P2) is relatively small, but nearly as tall as the next premolar (P3). Unlike mouse lemurs and more like dwarf lemurs, giant mouse lemurs have a prominent