SPECIAL ANATOMY. 251 
Fig. III. Digestive apparatus and pulmonary chamber. 1. Buc- 
cal I >ody; 2. retractors of do. ; 3. oesophagus ; 4. stomach; 5. intestine; 
6. rectum; 7. salivary glands ; 8. ducts of do.; 9. liver; 10. ducts of 
do.; 11. pulmonary chamber ; 12. pulmonary veins ; 13. renal organ; 
14. heart. 
Pig. IV- Generative apparatus. 1. Testicle; 2. epididymis; 2.* 
vas deferens; 3. prostate; 4. penis; 5. retractor of penis ; 6. ovary- 
7. oviduct; 8. genital bladder ; 9. dart sac; 10. cloaca; 11. glandular 
structure of do.; 12. right superior tentacle. 
Fig. V. Penis, dart sac, etc. laid open. 1. Penis; 2. folded lining 
of do.; 3. vas deferens; 4. dart sac, containing the dart; 5. neck of 
oviduct: 6. duct of bladder; 7. cloaca. 
Pig. VI. The dart, enlarged. 
Pig. VII. Glandular layer of the cloaca, enlarged. 
Fig. VIII. Globular form-of the genital bladder. 
Pig. IX. Spermatozoa, highly magnified. 
Pig. X. A hunch of imperfect spermatozoa from the testicle, highly 
magnified. 
Pig. XI. Granules from the testicle, highly magnified. 
Fig. XII. Imperfect ova from the ovary, highly magnified. 
PLATE IV. 
Vaginulus floridanus. 
Fig I. Integument laid open; the viscera in situ. 1. Buccal 
body; 2. salivary gland ; 3. stomach ; 4. intestine; 5. rectum; 6. liver J 
7. testicle; 8. multifid vesicle ; 9. heart. 
Fig. II. Viscera separated. 1. Buccal body; 2. stomach; 3. intes- 
tine ; 4. salivary glands ; 5. liver; 6. course of rectum, renal duct, and 
pulmonary passage ; 7. testicle; 8. epididymis; 9. receptacle of penis; 
JO. multifid vesicle; 11. ovary; 12. oviduct; 13. genital bladder ; 14. 
parenchymatous sac of the vagina. 
Fig. III. Part of the digestive apparatus. 1. Oesophagus; 2. sto- 
mach; 3. intestine; 4. liver; 5. hepatic ducts. 
Fig. IV. Genitalia. 1. Testicle; 2. epididymis; 3. vas deferens ; 
4. prostate; 5. receptacle of penis laid open ; 6. penis; 7. retractor of 
penis; 8. base of multifid vesicle ; 9 ovary; 10. oviduct; 11. genital 
bladder; 12. parenchymatous sac of vagina laid open. 
Fig. V. Visceral cavity, with the greater portion of the viscera 
removed. 1. Buccal body ; 2. salivary glands; 3. oesophagus; 4. rec- 
tum; 5. pulmonary passage; 6. pulmonary cells between the integu- 
ment and muscular peritoneum; 7. pulmonary artery from the left 
