250 INTRODUCTION. 



Fig. II. Genitalia, two diameters. 1. Testicle; 2. epididymis; 

 2.* vas deferens ; 3. prostate gland; 5. penis; 6. ovary; 7. oviduct; 8. 

 genital bladder ; 9. cloaca; 10. retractors of the penis and vagina. 



Fig. III. Digestive apparatus. 1. Buccal body; 2. retractors of 

 do.; 3. ccsophagus ; 4. stomach; 5. intestine; 6. rectum; 7. anus; 8. 

 salivary glands ; 9. duets of do.; 10. liver; 11. duct of liver. 



Fig. IV. Pulmonary chamber, magnified. 1. Floor of the cavity ; 

 2. pulmonary orifice ; 3. pulmonary arteries ; 4. auricle; 5. ventricle; 6. 

 pericardium; 7. aorta; 8. renal organ; 9. intestine; 10. anus. 



Figs. V. — VI. Limax CAMrESXKis. 



Fig. V. The digestive apparatus. 1. Buccal body; 2. its retrac- 

 tor; 3. stomach; 4. intestine; 5. terminal portion of do. ; 6. anus; 7. 

 salivary glands ; 8. liver. 



Fig. VI. Generative apparatus. 1. Testicle; 2. epididymis; 2.* 

 vas deferens; 3. accessory gland of do. ; 4. prostate; 5,6. penis; 8. 

 oviduct; 9. genital bladder ; 10. cloaca. 



Figs. VII. — IX. Limax ageestis, 



Fig. VII. Body laid open, and viscera dissected apart. 1 . Buccal 

 body; 2. stomach; 3. intestine; 4. blind tube of do.; 5. salivary 

 glands; 6. liver; 7. testicle; 8. epididymis; 9. prostate; 10. recepta- 

 cle of the penis ; 1 1 . trifurcate gland of do. ; 12. sac of penis ; 13- retrac- 

 tor muscle; 14. ovary; 15. oviduct; IG. geftital bladder; 17. pulmon- 

 ary chamber. 



Fig. VIII. Lower portion of the genitalia. 1. Prostate; 2. recepta- 

 cle of penis; 3. trifurcate gland of do. ; 4. sac of penis ; 5. retractor; 6. 

 oviduct; 7. bladder; 8. cloaca. 



Fig. IX. Eeceptacle of the penis laid open. 1. penis; 2. longitu- 

 dinal folds of the receptacle ; 3. trifurcate gland. 



PLATE III. 

 Tebennophokus caeolinensis. 



Fig. I. Integument laid open, and the viscera in situ enclosed 

 within the muscular peritoneum. 



Fig. II. Muscular peritoneum laid open; the organs in situ. 1. 

 Pulmonary chamber laid open; 2. muscular peritoneum; 3. buccal 

 body; 4. stomach; 5. liver; 6. intestine; 7. testicle; 8. ovary; 9. ovi- 

 duct; 10. d.irt sac ; 11. heart; 12. renal organ; 13. pulmonary orifice. 



