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 Amphiuma 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 fne foramen nasalis externus 
¢ cupola fon foramen orbito-nasalis 
ce columna ethmoidalis ins  internasal space 
cep cephalic process le lamina externa 
ch choana pa processus antorbitalis 
or circumnarial ring pb planum basale 
ort crista trabeculae pob preorbital band 
ct cornu trabeculae pp pterygoid process 
en external naris pv _ planum verticale 
fen pr fenestrated process t trabecula 
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