80 



ILLINOIS BIOLOGICAL MONOGRAPHS 



[80 



Fig. 28.- 

 Fig. 29.- 

 Fig. 30.- 

 Fig. 31.- 

 Fig. 32.- 

 Fig. 33.- 



alp 



c 



ce 



ce p 



ch 



cr 



cr t 



ct 



en 



fen pr 



EXPLANATION OF PLATE 



-Dorsal view of model of nasal capsule of Necturus maculatus 45 mm. long. 

 -Dorsal view of model of nasal capsule of a young larva of Amphiuma means. 

 -Ventral view of model of nasal capsule of an older larva of A mphiuma means. 

 -Dorsal view of model of nasal capsule of Amphiuma means 82 mm. long. 

 -Dorsal view of model of nasal capsule of a young larva of Epicrium glulinosum. 

 -Dorsal view of model of nasal capsule of Epicrium glutinosum 90 mm. long. 



alary process 

 cupola 



columna ethmoidalis 

 cephalic process 

 choana 



circumnarial ring 

 crista trabeculae 

 cornu trabeculae 

 external naris 

 fenestrated process 



fne foramen nasalis externus 



fon foramen orbito-nasalis 



ins internasal space 



le lamina externa 



pa processus antorbitalis 



pb planum basale 



pob preorbital band 



pp pterygoid process 



pv planum verticale 



/ trabecula 



