LÖNNBERG, MAMMALS FROM ECUADOR AND RELATED FORMS. 35 



Nine movable bands. 



The third wih 62 scales. 



Outer and posterior edges of 

 pelvic shield with 57 scales. 



Pelvic shield with 21 well vi- 

 sible transverse series of large scales, 

 if counted in the median line. 



The large scales of the pelvic 

 shield of almost subequal size every- 

 where. 



Fourteen distinct double rings 

 of scales on the proximal part of 

 the tail. 



Distally the scales are more 

 irregular. 



Second ring of tail with 27 

 scales. 



Scales of distal parts of the 

 tail rather broadly hexagonal, usu- 

 ally broadest at the middle. 



Scales of the tail more keeled 

 below than above. 



Nine movable bands. 



The third with 60 scales. 



Outer and posterior edges of 

 pelvic shield with 51 scales. 



Pelvic shield with 18 transverse 

 series of large scales, if counted in 

 the median line. The transverse 

 series rather obsolete behind. 



The large scales of the pelvic 

 shield are much larger on the an- 

 terior than on the posterior portion 

 dorsally. 



Fifteen distinct double rings 

 of scales on the proximal part of 

 the tail. 



Distally the scales are more 

 irregular. 



Second ring of tail with 22 

 scales. 



Scales of distal parts of the tail 

 more elongate, in alternating rows 

 broader near the posterior and near 

 the anterior end. 



Scales of the tail more keeled 

 below than above. 



These differences are not very important, but the ani- 

 mals cliffer more when actually compared than what appears 

 from the description. Especially the differences of the occi- 

 pital portion of the frontal shield, and the different proportions 

 of the scales of the shoulder- and pelvic shields appear to 

 indicate racial difference. 



The specimens from Ecuador are uniformly dark above 

 only the centres of the scales of the lateral parts of the cara- 

 pace being påle 



Mesial length of carapace 27 cm 



Greatest lateral length of carapace 31 » 



Mesial length of scaly portion of head 77 mm 



Length of tail 31 cm + x (tip broken). 



Didelphis paraguayensis andina Allén. 



Allén: Amer. Mus Bull., Vol. 1902, p. 272. 



Two male specimens from Quito, one with whitish, the 

 other with black long overhairs. 



One female from Manegal, »5,000 to 6,000 feet». 

 Native name: »Raposa». 



