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"Skull of Hystrix Eristata. t, temporal muscle; m, masseter. m', portion of masseter transmitted through the infra-orbital foramen, the superior maxillary nerve passing outwards between it and the maxillary bone." —The Encyclopedia Britannica, 1903

Hystrix Eristata

"Skull of Hystrix Eristata. t, temporal muscle; m, masseter. m', portion of masseter transmitted through…

"This includes certain rodents whose covering consists ofthe most parts of a kind of offensive and defensive armor, in the shape of spines or quills, instead of hairs, somewhat in the manner of the hedge-hogs." — S. G. Goodrich, 1885

Porcupine

"This includes certain rodents whose covering consists ofthe most parts of a kind of offensive and defensive…