7 6 



PICHY-CIEGO AND APAR 



ac 



and the third enormously enlarged. This latter fact recalls 

 the arrangement characteristic of Myrmecopliaga. The pelvis is 



greatly attached by the 

 ischiuin to the verte- 

 bral column. The 

 femur has a third tro- 

 chanter. 



The various forms 

 of Armadillos are 

 largely distinguished 

 by the number of mov- 

 able thin bands of 

 scutes lying between 

 the large anterior and 

 posterior shields. Thus 

 we have Dasypus sex- 

 cinctus, Tolypeutes tri- 

 cinctus, etc. 



The little Pichi- 

 ob&for , , 



^ chago (or, more cor- 



FIG. 102. Pelvis and sacrum of Armadillo. Dasypus rec ^y Pichv - cie^o) 

 sexcinctus. ac, Acetabulurn ; il, ilium ; isch, ischium ; * ' 



obtfor, obturator-foramen ; pect.t'itb, pectineal tuber- ChlamydopllOTUS,^i\\\C\\ 

 cle ; pfA, pubis. (From Parker and Haswell's , t fe fc 5 



Zvoloyy.) * & 



inches in length, has 



no movable bands at all. It is covered with a uniform series 

 of plates, which, moreover, are not discontinuous at the neck. 

 It differs, too, from the prevailing Armadillo- type by the absence 

 of conspicuous external ears. In the anterior part of the body 

 the armature consists of little more than the horny plates, which 

 in other Armadillos overlie the bony dermal plates. In the 

 hinder region the bony plates are strong. In this animal, there- 

 fore, we have the dermal armature reduced to a minimum ; but 

 it must be noticed that, like the extinct Glyptodons, the armn- 

 ture is continuous and nowhere ringed. 



The genus Tolypeutes, of which the best-known species is T. 

 tricinctus, the Apar (there are two other species in the genus), can 

 roll itself up into a ball like the Pill-Millipede (Glomeris), and, 

 protected by its armour, roll away from its enemies like the 

 Arthropod under similar circumstances. This mode of protection, 

 be it observed, is also adopted by the Pangolin and by the Hedge- 



