Order Rodentia - Family Muridae 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 2 1189 1531 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 Gerbillus (Hendecapleura) watersi de Winton 1901 Gerbillus (Hendecapleura) watersi de Winton 1901 , Novit. Zool., 8: 399 . Type Locality: Sudan , Upper Nile, Shendi. Vernacular Names: Waters's Gerbil . Synonyms: Gerbillus (Hendecapleura) juliani (St. Leger 1935) . Distribution: Endemic to NE Africa in Sudan , Somalia , and Djibouti . Conservation: IUCN – Lower Risk (lc) as G. juliani and G. watersi . Discussion: Subgenus Hendecapleura . Listed both as a subspecies of G. nanus or as a valid species by F. Petter (1975 b ) in the same report. The species should be considered distinct until revisionary studies advise otherwise ( Lay, 1983 ). Roche and Petter (1968) reviewed juliani under Monodia , but F. Petter (1975 b ) later synonymized it with G. watersi without supporting evidence. Roche (1975) provided evidence for uniting juliani with G. watersi , an action endorsed by Pavlinov et al. (1990) . Lay (1983) , however, recognized juliani as valid pending revision of the genus. Pearch et al. (2001) documented records from Djibouti , provided a good description of the species, comparing it with G. henleyi from the same country. Reviewed by Pavlinov et al. (1990) .