252 INTRODUCTION. 
side; 8. heart; 9. renal organ; 10. renal duct: 11. penis, seen within 
its receptacle ; 12. base of the multifid vesicle; 13. parenchymatous sac 
of the vagina; 14. vagina; 15. sub-cesophageal, and 10. supra-cesopha- 
geal ganglia; 17. olfactory sinus. 
Fig. VI. Dental plate: a. size of nature; b. magnified, with the 
retractor muscle attached. 
PLATE V. 
BULIMUS FASCIATL'S. 
Fig. I. The viscera dissected apart. 1. Buccal body; 2. lingual 
pouch; 3. retractor of buccal body ; 4. stomach; 5. intestine ; 6. rec- 
tum ; 7. anus ; 8. salivary glands ; 9. ducts of do. ; 10. liver; 11. posi- 
tion of the testicle commingled with the posterior lobe of the liver ; 12. 
epididymis ; 12.* vas deferens ; 13. accessory gland of the epididymis ; 
14 prostate; 15. penis; 16. retractor of do. ; 17. multifid vesicle; 18. 
ovary; 19. oviduct; 19." glandular portion of do.; 20. genital blad- 
der; 21. pulmonary chamber ; 22. pulmonary aperture ; 23. pulmonary 
artery; 24. pulmonary vein; 25. pericardium; 26. auricle; 27. ventri- 
cle; 28. aorta; 29. renal organ ; 30 renal duct; 31. orifice of do. ; 32. 
supra-cesophageal ganglia; 33. stomato-gastric ganglia; 34. sub- 
cesophngeal ganglia. 
Fig. II. Buccal body laid open, enlarged. 1. Upper lip; 2. lower 
lip; 3. dental plate ; 4. sides of buccal cavity; 5. tongue; 6. entrance 
of oesophagus ; 7. oesophagus ; 8. salivary ducts; 9. lower part of 
buccal body; 10. retractor muscle. 
Fig. III. The muscular tongue, witli the tubular prolongation of 
the lingual lamina into the lingual pouch. 
Fig. IV. Dental plate: a. magnified; b. size of nature. 
Fig. V. Excavation of the foot 1. Buccal body turned forward J 
2. retractor muscle; 3. attrahent fasciculi; 4. lingual pouch; 5. re- 
tractors of the foot ; 6. olfactory sinus. 
PLATE VI. 
Helix alboi.ai.kis. 
Fig. I. The animal, with the pulmonary chamber (1) laid open 
and turned back from the visceral mass (2); 3 the mouth; 4. the 
cloaca, voluntarily protruded. 
Fig. II. The viscera, all dissected apart- 1. Buccal body; 2. 
