Microtus guentheri Danford and Alston
Fig. 23
Baculum: In the one specimen examined, stalk broad, greatest length (2.9 mm.) 1½ times greatest breadth, 3½ times greatest depth; three digitate processes ossified; median process slightly less than ½ length of stalk, broad, dorsally curved; curved lateral ossifications shorter and more slender than median ossification; basal tuberosities well developed, angular, confluent across posterior border of projecting shelf; in end-view tuberosities projecting ventrolaterally from central shelf; dorsal surface at medial constriction flat, ventral surface broadly and deeply concave; posterior profile in dorsal view trilobate, central lobe formed by posteriorly flattened shelf, surface of attachment visible only on lateral lobes; at mid-point stalk almost twice as wide as deep, depth of shaft greater than width proximal to inflated terminus.
Specimen examined: One from Palestine, 67104.