GEOGEAPHICAL DISTRIBUTION. 



Ixv 



Macroglossms 

 Pieropodidse 



Fig. VI. — General view of the interrelations of the s<iibfamilies, 

 sections, and subsections of living Megachiroptera. 



IV. Geographical distribution of Megachiroptera. 



1. Distribution of genera. 



In the table below the ciphers in the left-hand column, after 

 each genus, if single indicate the total number of species in the 

 genus, if double the first is the number of species, the second the 

 number of recognizable forms. In the other columns is given 

 tlie number of species of each genus known to occur in each zoo- 

 geographical region or subregion (as defined by Wallace), and if 

 the number of " forms " is ditl'ereut from that of species it is added 

 between parentheses. (If the ciphers in one horizontal row are 

 added together, the total sum will not infrequently bo found to be 

 greater than the number of species or forms given for the genus ; 

 the reason is, of course, that in such cases one or several forms of 

 the genus extend through more than one region or subregion.) 

 In the column headed "Ethiopian region" is included the single 

 species (lioiisettus ce(/i/ptiacus) which extends into the Eastern 

 IVIediterranean subregion (Egypt, Syria, Palestine, Cyprus). For 

 comments on the table, see the paragraph " llemarks on the 

 geographical distribution," pp. Ixxv-xcii. 



