QQ REFERENCES TO THE PLATES. 



Fig. IX. Spermatozoa and granules from the epididymis, highly 

 magnified. 



Fig. X. Portion of the renal organ at its commencement, exhibit- 

 ing the relation of the duct at its outer edge. 



Fig. XI. Helix Berlandeeiana. 



Fig. XI. Genitalia of Helix Berlanderiana. 1. Testicle; 2. epi- 

 didymis; 3. accessory gland of do. ; 4. prostate; 5. penis; 6. double 

 retractor of do. ; 7. sac of the darf? ; 8. ovary; 9. oviduct; 10. blad- 

 der; 11. cloaca. 



PLATE IX. 



Pigs. I. — III. H. profunda. 



Pig. I. Digestive apparatus. 1. Buccal body; 2. retractor of do. ; 

 3. oesophagus; 4. stomach; 5. intestine; 6. salivary gland ; 7. ducts; 

 of do. ; 8. hepatic ducts. 



Pig. II. Inferior part of the genitalia. 1. Prostate; 2. vas defe- 

 rens; 3. penis; 4. retractor of do. ; 5. prepuce; 6. oviduct; 7. bladder; 



8. vagina; 9. cloaca; 10. tentacle. 



Pig. III. 1. Yas deferens; 2. penis; 3. retractor of do. ; 4. prepuce 

 laid open; 5. glans penis; 6. genital bladder and duct laid open, ex- 

 hibiting the interior, longitudinal folds ; 7. neck of oviduct ; 8. vagina; 



9. cloaca; 10. tentacle. 



Helix puliginosa. 



Pig. IV. H. fuliginosa, with all the viscera dissected apart. 1. 

 Buccal body; 2. retractor of do. ; 3. oesophagus; 4 stomach; 5. intes- 

 tine; 6. rectum ; 7. anus; 8. salivary gland; 9. ducts of do. ; 10. liver; 

 11. testicle; 12. epididymis; 13. accessory gland of do. ; 14. prostate; 

 15. penis; 16. retractor of do. ; 17. ovary; 18. oviduct; 19. bladder; 

 20. glandular structure surrounding the vagina ; 21 . pulmonary cham- 

 ber; 22. heart; 23. renal organ; 24. retractor muscle of the foot; 25. 

 supra-, 26. sub-cesophageal, and 27. stomato-gastric ganglia. 



Pigs. V. VI. H. auriculata. 



Pig. V. Digestive apparatus. 1. Buccal body; 2. lingual pouch ; 

 3. retractor of buccal body ; 4. oesophagus; 5. stomach; 6. intestine; 

 7. salivary gland ; 8. ducts ofdo. ; 9. hepatic ducts. 



