80 



ILLINOIS BIOLOGICAL MONOGRAPHS 



EXPLANATION OF PLATE 



Fig. 28. Dorsal view of model of nasal capsule of Necturus maculatus 45 mm. long. 

 Fig. 29. Dorsal view of model of nasal capsule of a young larva of Ampkiuma means. 

 Fig. 30. Ventral view of model of nasal capsule of an older larva of Amphiuma means. 

 Fig. 31. Dorsal view of model of nasal capsule of Amphiuma means 82 mm. long. 

 Fig. 32. Dorsal view of model of nasal capsule of a young larva of Epicrium glutinosum. 

 Fig. 33. Dorsal view of model of nasal capsule of Epicrium glutinosum 90 mm. long. 



al p alary process 



c cupola 



ce columna ethmoidalis 



ce p cephalic process 



ch choana 



cr circumnarial ring 



cr t crista trabeculae 



ct cornu trabeculae 



en external naris 



fen pr fenestrated process 



fne foramen nasalis externus 



ion 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 



