
788 AELTS. 
EXPLANATION OF PLATE XXVIII. 
Fic. 33. Side view of occipital and anterior trunk regions of adult Amia. The 
branchial arches, excepting only their ventral ends, the corresponding portion of 
the clavicle with the pectoral fin, and the dermal bones between the clavicle and 
the skull and those on the top of the latter have been entirely removed. The 
vagus and glossopharyngeal nerves are cut near their exits from the skull, the 
spinal nerves near the points where they enter the pectoral fin. The occipital 
nerves are left entire. The pharyngo-claviculares are shown, the externus entirely 
cut, the internus partially so. X 1%. 
Fic. 34. Same as Fig. 33, but another specimen. The occipital and spinal 
nerves have been pulled down out of their natural positions so as to show their 
anastomoses. The position of the pectoral fin is indicated by dotted lines, as is 
also the position of the deeper portion of the eighth intermuscular septum. The 
muscle fibres between the dorsal portions of the intermuscular septa have been 
removed so as to show the pockets in the latter. * 1%. 
