O. G. Dely szerk.: Vertebrata Hungarica 16. (Budapest, 1975)

Topál, Gy.: Bacula of some Old World Leaf-nosed bats (Rhinolophidae and Hipposideridae, Chiroptera: Mammalia) 21-54. o.

cylindrical in cross sections and tapering towards the tip. The latter is broadly rounded off and generally wide from the dorsal view, and with a longish dorsal bulge, well visible from the lateral aspect. All in all, the baculum of this species resembles that of Rh. hipposideros; however, it is stronger, slinghtly bigger, with a double bend and with a smaller basal cone. Rhinolophus pearsoni pearsoni HORSFIELD, 1851 One specimen has been studied, collected by the author at Lopchu, near Darjeeling, NE India. This big-bodied horseshoe bat has a relatively small and extremely specialized baculum, widely different from that of all other species studied (Plate V., figs. 3-5). Measurements: total length 2,68, width of base 1,09, height of base 1,09, height of blade 0,52 mm. The basal cone is big, equal of width and height. The dorso-proximal margin is deeply emarginate, as if douoly emargined owing to the strongly protruding dorsal knob. The ventral incision of the base has the form of an equilateral triangle, with a widely rounded-off distal protion. The dorsal knob of the base is very high and well separated from the other parts of the base, The ventral surface of the basal cone exhibits a wide median depression with an emerging ridge on each side of it. The shaft is dorsoventrally expanded, lateraUy flattened bladelike structure with its highest point at about 3/4 length of the bone. At this point it bends 150° in the dorsal profile, while the major part of the ventral profile remains straight. The whole shaft is as if it were slightly ventrally bent to the base. The tip is nearly rounded off in the dorsal view, but with multiple breakings in outline in the lateral view. Rhinolophus macrotis episcopus ALLEN, 1923 The specimen studied came from Cherrapunjee, Assam, India, and was collected by the author. Measurements: total length 3,32, width of base 0,59, width of tip 0,18, height of tip 0,22 mm. Regarding the morphology of the baculum, this form clearly belongs to the lepidus-cornutus-hipposideros group, as it reveals primary characters (Plate V., figs. 6-8). The bone is relatively smaller (as compared to the body-size) than in cornutus. It has an absolutely smaller basal cone, slightly compressed dorsoventrally. The dorsal and ventral emarginations on the corresponding proximal margins are slight and wide (the ventral margin is more proximal) as compared to those in Rh. cornutus there is a dorso-proximal knob and an expanded ventral depression on the outer wall of the basal cone. The ventral depression extends on the shaft as a ventral flat surface up to its middle length. The shaft has a thickening at the middle, well discernible both superiorly and laterally. It has a very slight dorsal bent near the base cone, while it is more pronounced immediately beyond the thickening. The tip has a narrowly rounded off point, with a lateral widening and a longish dorsal knob. Rhinolophus macrotis caldwelli ALLEN, 1923 A single specimen was collected for this study in Vietnam. Measurements: total length 2,54, width of basal cone 0,57, height of basal cone 0,50, width of tip 0,13