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.
mm. The morphology of the baculum evidently shows differences, as compared to the baculum of the Assamese subspecies (Plate V., figs. 9-11). The difference in size alone substantiates the existence of two different subspecies. The bone has a more pronounced upward bend and a smaller basal cone with deeper emarginations than in the former subspecies. The rather wide ventral emargination is deeper than the dorsal one. The dorsal knob is low, the ventral depression is small in extension. The shaft and tip are roughly as in the preceding subspecies. There have been studied one specimen from the Elephanta Caves, near Bombay, India, and two from Kala Wewa, Sri Lanka. Measurements: total length 0,45-0,50, width of base 0,09 mm. The bone is extremely small in relation to the body-size and clearly a rudimentary structure (Plate VI., figs. 1-4). I have found slight differences between the two populations studied. The Ceylonese bones are slightly longer and narrower than that of the Indian specimen. Moreover, the tip o* the Indian specimen shows a tendency to being forked instead of the simple knob in the Sri Lanka animal. Common for all studied specimens is the basal widening, when viewed from above. It has a dorsally emerging portion and a backwards and downwards pointing one, when viewed laterally. The shaft is tapering towards the tip and in the lateral view it displays a continuous upward bend. A small series of this species was used for the present study (three specimens), collected in Tuong linh, North Vietnam. Measurements: total length 1, 86-2,10, basal width 0, 63-0, 77, basal height 0, 52-0, 59, height of terminal hook 0,59-0,65 mm. The morphology of the baculum is basicly different from that of all members of the bic^olor and g_aleritus groups, as well as from the baculum of H. s peoris, in having an enlarged and specialized terminal fork and a relatively small basal portion (Plate VI., figs. 5-13). The results of this study query the homogenity of the conventional sp_eojn_s_ group too. The basal protion is the widest one of the bone, yet proximally somewhat narrower than distally. It resembles the basal cone, with undulating dorsal and ventral edges (the latter is more proximal) and with deep emarginations laterally Its dorsal portion is heavy with a distally lowering profile, while the ventral one slender and thin with a median depression. The forks constitute the distal two-thirds of the total length. The right side branch of the fork is always larger with a bigger surface, and by a bent portion it always extends below the leaf of the left side one. The branches also converge distally. The lateral view of the forks shows a dorsodistal extension, that is, a hatchet-like shape with a widely rounded off tip. The whole portion bends upwards to the base. 2il^osidej^o_s_s£e^^^ SCHNEIDER, 1800 Hipposideros larvatus larvatus H OR SFI ELD, 1823
