XVI.] 



EDENTA TA. 



phalanx. The tburth and fifth are shorter, but present 

 the saine general characters, and their metacarpals are also 

 reduced in length. 



All the deviations from the normal type of manus ob- 

 served in the common Armadillos, when greatly exaggerated 

 produce the curiously modified condition seen in the Cabas- 

 sou {Xcnunis unicindus). The first and second digits are 



Fig. ioi. — Bones of the right manus of 

 the Hairy Armadillo {Dasyjius viilo- 

 S7(S), §. 



Fig. I02. — Bones of the manus of the 

 Grent Armadillo (Fr/odonfi's £7gas),i. 

 a an accessory carpal ossicle in front 

 of the pisiform, which is not seen in 

 the figure. 



Still more slender and elongated, and retain the normal 

 number of phalanges ; but in the other three the metacarpal 

 is short and broad, the proximal phalanx is either sup- 

 pressed or incorporated with the metacarpal, as in some of 

 the Sloths, the middle phalanx is very short, but the ungual 



