Order Lagomorpha Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1 185 211 book chapter 0-8018-8221-4 10.5281/zenodo.7316519 Lepus flavigularis Wagner 1844 Lepus flavigularis Wagner 1844 , in: Schreber, Die Saugethiere, Suppl. 4: 106 . Type Locality: " Mexico " Restricted by Elliot (1905:543) to San Mateo del Mar, Tehuantepec [City, Oaxaca , Mexico ]. Vernacular Names: Tehuantepec Jackrabbit . Distribution: Coastal plains and bordering foothills on south end of Isthmus of Tehuantepec ( Oaxaca , Mexico ), along Pacific coast to Chiapas ( Mexico ); now restricted to small area between Salina Cruz , Oaxaca , and extreme W Chiapas . Conservation: IUCN – Endangered; likely to be reclassified as IUCN – Critically Endangered. Discussion: Subgenus Proeulagus ( Gureev, 1964:193 ) or Macrotolagus ( Averianov, 1998 ). Closely related to callotis , with which it has an isolated allopatric distribution; see Anderson and Gaunt (1962) ; also see Hall (1981:330) . Karyotype reported by Uribe-Alcocer et al. (1989) . Reviewed by Cervantes (1993, Mammalian Species, 423).