Hemprich, C. G. and W. F. Ehrenberg. (1832). Symbolae Physicae Mammalia, 2. Berlin, Germany. [Description in footnote by Ehrenberg on last page of unpaginated fascicle headed Herpestes leucurus H. et E. Two versions of this work were published in 1832, one with and one without the footnote; it is not known which appeared first.]