. Bats of Portugal : zoogeography and systematics. Bats -- Portugal. Fig. 20. Side view of the anterior part of the skulls of Myotis nattereri (left) and M. emarginatus (right). The arrows show differences in the dentition. Modified from Saint Girons (1973). skull; well-developed protoconules on M1 and M2 (Fig. 19); interorbital constriction usually over mm M. daubentonii (p. 18) 7'. Braincase width equal to or less than {A the greatest length of skull; protoconules on M1 and M2 (Fig. 19) absent to moderately devel- oped; interorbital constriction usually under mm 8 8. No protoconules
. Bats of Portugal : zoogeography and systematics. Bats -- Portugal. Fig. 20. Side view of the anterior part of the skulls of Myotis nattereri (left) and M. emarginatus (right). The arrows show differences in the dentition. Modified from Saint Girons (1973). skull; well-developed protoconules on M1 and M2 (Fig. 19); interorbital constriction usually over mm M. daubentonii (p. 18) 7'. Braincase width equal to or less than {A the greatest length of skull; protoconules on M1 and M2 (Fig. 19) absent to moderately devel- oped; interorbital constriction usually under mm 8 8. No protoconules on upper molars (Fig. 19); first upper premolar about twice as high as second (Fig. 21) M. mystacinus (p. 20) 8'. Protoconules on upper molars (Fig. 19) often present; first upper premolar slightly higher than second (Fig. 21) M. brandtii Fig. 19. Low oblique view of the lingual side of upper teeth of Myotis with (left) and without (right) protoconules on M1 and 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 Palmeirim, Jorge M. Lawrence, Kan. : University of Kansas. Museum of Natural History
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