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Show 120 MR. K. ANDERSEN ON BATS [May 16, between these two Ethiopian species, viz. a broad horse-shoe m deckeni and a narrow one in augur, we have a parallel in ferru.-n-eq u in um : a broad horse-shoe in nippon and tragatus, a narrow one in the other races. The western branch spread over South and Central Europe : the dentition slightly more advanced, the tail lengthened. The third branch is now represented by what I have called the Eastern races of ferrum-equinum ; all of them have retained the short tail; nippon (which, so far as the dentition is concerned, has remained on a relatively less advanced stage) leads through tragatus to regulus, in which the dentition has reached the highest stage of development found in any race of ferrum-equinum. According to this the mutual affinities of the species of the simplex group might be expressed as follows 1" (the Ethiopian species are marked with an asterisk):- * augur. ferrum-equinum. *decTceni. * darlingi. * clivosus.' * acrotis. affinis.'' megaphyllus. (lepidus-gvowp .)<------------------ - o each other at base; in 4 j>2 is half in row. To this latter I find no parallel in any specimen of ferrum-equinum (all races) I have seen, and in 4 skulls only, out of 33, there is a more or less distinct remnant of the interspace between the canine and p4. Of Jlh. decJceni I have seen one skull only; the dentition is as in many specimens of S/i. augur ; c and p4 separated, p2 external, f I give the diagram the form of a genealogical tree, only because it is convenient to |
