788 



ZOOLOGY 



SECT. 



a receptacle, the spcrmatophoral sac or Necdham's sac (sp. s.\ and 

 opens, nearly in the middle line at the end of a prominence the 

 penis (Fig. 680, pen.). In the female the right oviduct has a 



Fi<;. 684. Nautilus pompilius, male reproductive organs, ace. vesicula seminalis ; eff. vess. 

 efferent branchial vessels; 1. gen. <>/>. left genital opening; post. ao. posterior aorta; pyr. 

 pyviform appendage; r. (ten. op. right genital opening; .sp. s. sperrnatophore-sac ; test. 

 testis ; vent, ventricle. 



. 685.- Nautilus pompilius, female reproductive organs, alb. albumen-gland ; /. (ten. op. 

 left genital opening; or. ovary ; pyr. pyriform appendage ; r. rien. o/>. right genital opening ; 

 vent, ventricle. (After Laukester and Bourne.) 



glandular dilatation, which is supposed to be an albumen gland. 

 The ova are of large size, greatly exceeding those of Sepia in 

 dimensions, containing a large proportion of food-yolk. Nidamental 



