me i 
Fig. 1. Fig. 2. 
PLETHODON CIVEREUS oranı of 
PLETHODON GLUTINOSUS ee qin © 
—— 
Os thy 
KBr : 
KB» aks 
ee deg pl 
Bey d. 0. 
or 
e5 Scapvlu 
k 
Pharyugeal 
muscular “if 
Sheet. - - 
Ruoclıam gar £ of 
9 Lot Gs 
Fig. 3. 
q PLETHODON CINEREUS 
\ Fig. 1. Ventral view of Plethodon 
4 glutinosus from a dissection. X 4. 
; osthy. Os thyroideum. dig. ph. Digastricus 
pharyngis. d.@. Dorso-laryngeus. scap. ph. 
Scapulo-pharyngeus. K. Br. 1 and 2 First 
and second Keratobranchials. 
Fig. 2. Cross-section of Plethodon ci- 
nereus in the oticregion. dig. ph. M. digastri- 
-cus pharyngis. K.Dr.1 and 2 First and 
second Keratobranchials. 
Fig. 3. Cross-section in same series as 
Fig. 2, but more posterior, showing insertion 
of M. digastricus pharyngis. 
Peprcardia na 
