86 



475.229 917.535 1771. 504 3420 . 282 6603.61 



Fig.63: Relation SIZE to upper tooth row: comparison between Brae hyp hyl la (+) and outgroup (□) 



Still, the lower gradient of the reduced major axis in Lonchophylla combined with a high 

 correlation coefficient remains to be interpreted. Also here, an acute-angled geometry of 

 the palate weakens proportional shifts in size alterations (figs. 50, 62). 

 Upper tooth row (OZR): Referring to the length of the postcanme tooth row in the upper 

 jaw, the basic subfamilies BrachyphyUinae and Phyllonycterinae do not differ from the 

 outgroup (cf. figs.51, 63). 



In size-dependent comparison of proportions, also the glossophagine genera Lichonycteris 

 (fig.51) and Leptonycteris (figs.51, 64) closely approach the allometric line characterizing 

 the outgroup - despite a condition of higher specialization in other features, their maxillar 

 tooth row does not exceed that of Carollia, PhyUostomiis, Brachyphylla, Erophylla and 

 Phyllonycteris in length. Tlie reason is quite simple: in both genera, tliere are only two 



794.895 1041.789 1365.367 1789.449 2345 . 



Fig. 64: Relation SIZE to upper tooth row for Leptonycteris 



