inl. / 



atom. 



. 042. Nautilus pompilius, dissection of the internal organs of a male, from the left side. The 

 funnel and the hood have been divided by a longitudinal median section. A portion of the wall of the 

 buccal cavity has been removed to show the odontophore and the tongue, ace. gl. vesicula seminalis ; 

 tt/i. anus ; aort. oral aorta; aort'. posterior pallial artery; b. du. bile ducts; buc. n. buccal nerves; buc. 

 P<(i>. papillae of peristomial membrane ; c^r. <i. cerebral ganglion ; CIKC. caecum ; cr. crop ; lid. hood ; Inf. 

 funnel ; inf. n. infundibular nerve ; int. 1 part of intestine- between stomach and caecum ; int.- part of 

 intestine following caecum ; jaw, larger (posterior) jaw ; /. ,,/f. /: o. left efferent branchial vessels ; I. tent. 

 n'l. left internal tentacular lobe ; need. s. Needham'ssac ; odont. odontophore ; en' style passed from buccal 

 cavity into the opening of the oesophagus ; nx. (usuphagus ; olf. n. olfactory nerve; opt. n. optic nerve; 

 oto. otocyst ; pall. n. pallial nerves ; puL <j. pedal ganglion ; pi. <j. pleural ganglion ; /-. <.$'. lr. K-. right 

 efferent branchial vessel ; re.tr. retractor muscle of the buccal mass ; stom. stomach ; text, testis ; tong. 

 tongue -shaped elevation of the floor of the mouth ; m. valve of funnel ; rtn. c. vena cava ; cent, ventricle. 



