PRENTISS. — Polydactylism. : 
/ 
- & - 
= Fi { 
, ) hia 
ey . 
: ; PLATE 4. 
ns Fic. 12. Anterior view of left polydactyle manus of the pig, showing a small ; 
aon supernumerary digit (1) and the lower row of carpals. ae 
