. Bulletin - United States National Museum. Science. 232 NATIONAL MUSEUM BULLETIN 2 75 Jaculus jaculus cufrensis. Cyrenaica: Environs of Cufra Oasis. Jaculus jaculus tripolitanicus. Tripolitania: Gefara plain. Jaculus jaculus whitchurchi. Cyrenaica: Coastal plain of Gulf of Sirte, and Giarabub Oasis. Published records in Libya. Cyrenaica: Giarabub (de Beaux, 1928); El Agheila, Cufra (de Beaux, 1932); Giarabub (Zavattari, 1937); Zauia Mechili (de Beaux, 1938); Giarabub, Gialo, Marada, Tazerbo (Toschi, 1951); Tripolitania: Socna, "AttickLoumonileh", "Oumsinerma" (Thomas,
. Bulletin - United States National Museum. Science. 232 NATIONAL MUSEUM BULLETIN 2 75 Jaculus jaculus cufrensis. Cyrenaica: Environs of Cufra Oasis. Jaculus jaculus tripolitanicus. Tripolitania: Gefara plain. Jaculus jaculus whitchurchi. Cyrenaica: Coastal plain of Gulf of Sirte, and Giarabub Oasis. Published records in Libya. Cyrenaica: Giarabub (de Beaux, 1928); El Agheila, Cufra (de Beaux, 1932); Giarabub (Zavattari, 1937); Zauia Mechili (de Beaux, 1938); Giarabub, Gialo, Marada, Tazerbo (Toschi, 1951); Tripolitania: Socna, "AttickLoumonileh", "Oumsinerma" (Thomas, 1902); Tripoli (Klaptocz, 1909); Sirte (Zavattari, 1937); Tripolitania settentrionale (Toschi, 1951); Fezzan: Murzuch, Serdeles, Bir el Fatima (Toschi, 1951). Remarks. The present study reveals that jerboas of this species are an assemblage of rather localized populations showing consider- able differentiation resulting from relatively long periods of isolation of allopatric populations and ensuing genetic fixation. Local differ- entiation of these jerboas is demonstrable in several areas in Libya. These areas may be delineated as the oases and serirs of central and southern Cyrenaica, the oases and intervening wadis of the Fezzan, and the littoral deserts along the Gulf of Sirte in Tripolitania. This latter region is divisible into two distinct areas—the broad coastal. Jaculus jaculus I arenaceous 2 collinsi 3 cufrensis 4 tripolitanicus 5 whitchurchi Figure 50.—Distribution of the subspecies of Jaculus Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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