62 



WALTER K. FISHER, 



J jaw 



j nerve connecting heart nerve witli 



visceral 

 K.M vein-net over kidney 

 K. S kidney vein, or collector from 



vein-net (K.M) 

 L lips 

 I nerve to oesophagus from left 



pleural ganglion 

 Lat. P lateral pouches of oral cavity 

 Lc, Lc' labial commissures 

 Lig ligament connecting two oto- 



cysts 

 L.K left kidney 

 L. G- labial ganglion 

 L. OspJi.N left osphradial nerve 

 L. Par, L. Par' posterior and an- 

 terior left parietal nerves 

 L. U left ureter 

 lu.n nerve to left ureter 

 Lv liver 

 Lv.D liver duct 

 31 muscular tissue 

 m, m' nerves to oesophagus from 



left pleural ganglion 

 Ma mantle 

 M. C mucous cells 

 Med. S median blood sinus of foot 

 M. N, M. N\ M. N" mantle nerves 

 Mth mouth 

 M. V mantle veins 

 n visceral nerve from left pleural 



ganglion 

 Neu. A neural artery 

 Nph.N, Nph.N' nephridial nerves 

 Oc oral cavity 

 Oe oesophagus 

 op optic nerve 

 Osph. G osphradial ganglion 

 ot otocyst 

 of otocyst nerve 

 Ov ovary 



p nerves from cerebro-pedal con- 

 nective 

 Pc, Pc', Pc" pedal commissures 

 Pd.N, Pd.N', Pd.N" nerves to 



pericardium 

 Ped.A pedal artery 



Ped. G pedal ganglion 



Ped. G' pedal cords 



Ped.N, Ped.N' pedal nerves 



Per pericardium 



Per' pericardial wall 



PJi pharynx 



Ph. G posterior or pharyngeal glands 



PI. G pleural ganglia 



Pp palps 



P.P.N, P.P.N' right and left 

 posterior palliai nerves 



P. P. N" nerve joining the above 



Ppîi, Ppn' palp nerves 



Pro proventriculus 



P. S pedal sinuses 



R radula 



Ren. P. C, Ren. P. C right and left 

 reno-pericardial canals 



Rg. N, Rg.N ring nerves in mantle 



R.K right kidney 



R. Ospli. N right osphradial nerve 



R. Par, R. Par' posterior and an- 

 terior right parietal nerves 



Rt radula tube 



Rt' point where radula tube quits 

 aorta 



Rt" distal knob of radula tube 



R. U right ureter 



ru.n, ru.n' nerves to right ureter 



S stomach 



Sac lateral sacculation of pharynx 



Sg sensory groove of lips 



SJi. M shell muscle 



Sh. M. N nerves to shell muscle 



S/9W, spn', spn" superior pharyngeal 

 nerves 



Stg. C stomatogastric commissure 



Stg. G stomatogastric ganglion 



Stg.N, Stg.N right and left [sto- 

 matogastric nerves 



Suh.I subintestinal ganglion 



Suh. L sublingual or subradular 

 organ 



Std). L. A sublingual artery 



Sub.L.F sublingual furrow 

 Srd). R. C subradular commissure 

 Suh. R. G subradular ganglion 

 Sub. R. N subradular nerves 



