228 OH re />'. DauU's: Tn-o Av.i<li'(ili(ni Laml Snalh. 



R. KectuTii. 



\\m\. Kadnla. 



I'.M. Retractoi- iiuiscle. 



R.r>. Reproductive opening. 



K.vS. Ixeceptaculuin seniinis. 



S. Stomach. 



S.D. Salivary diut. 



S.Ct. Salivary o-lund. 



T,I. Inferior tentacle. 



T.S. Superior tentacle. 



V. Ventricle. 



V.D. Vas deferens. 



V.H. Visceral hump. 



I»LATK X\'. 



]''i<i-. 1. — /'. coiiijHictd : tlif living- animal; slidwinj^ the •^laiidular 



papilla below tiie int'ei-ior tentacle. 

 ]''ig'. II. — /'. (if 1(1 me II far i(t : head of pi'eserved specimen: sliowin;^- 



the retracted superior and inferioi- tentacles, aiiil the 



little i)apilla with the groove on its under surface. 

 Kig. ill. — I'. ((Hiipdcta ; head of living animal; showing position 



of eye, and the glandular jiapilla ; to com[)aii' with. 



Kig.'ir. 



Fig. I\'. — /'. com part (I : section of hody wall and right inferior 

 tentacle; showing glandular structure beneath the in- 

 ferior tentacle. 



Fig. V. — /'. atrameniai'Ki : section of glandular ])a])illa ; sliowing 

 structure; to com])are with I'^ig. IV. 



ri.ATK XVI. 



I'lg. \ I. — /'. compacld : dissection to show the geneial arrangement 

 of oi'gans. 



ri-.VTK XVII. 



Fig. \'il. — /'. com pacta : alimentary canal. 



Fig. \'lll. — /'. cam piictd : pharynx cut open from l!ie right side to 



show 1 he ra<lula in sifti. 

 Fig. IX. A. — Tyj)es of teeth: /'. compacta. 



\\. — Tv])es of teeth; /'. at Kimciitaria . 

 Fig. .\. — /'. com pacta : dissec'tion to show the vas deferens and 



penis. 



