SPECIAL ANATOMY. £57 
Fig. II. Genitalia. Same references as Pig. VI. PI. IX. 
Fig. III. Portion of the oviduct laid open. 1 . Transverse folds of 
the sides ; 2. spermatic groove. 
Fig. IV. Dental plate, largely magnified. 
Figs. V. — VT. H. hirsuta. 
Fig. V. Viscera dissected apart. 1 . Buccal body ; 2. oesophagus ; 
3. stomach; 4. intestine; 5. rectum; 6. anus; 7. salivary gland; 8. 
liver; 9. testicle; 10. epididymis; 1 1 . accessory gland of do. ; 10/ vas 
deferens; 12. prostate; 13. penis; 14. retractor of do. ; 15. ovary; 16. 
oviduct; 17. genital bladder ; 18. pulmonary chamber; 19. heart; 20 
renal organ. 
Fig. VI. Accessory gland of the epididymis, highly magnified. 
Figs. VII. — IX. H. thvroidus. 
Fig. VII. Digestive apparatus. Same references as Fig. I. 
Fig. VIII. Genitalia. Same references as Fig. VI. PI. IX. 
Fig. IX. Penis laid open. 1. Longitudinal folds; 2. valvular fold ; 
3. vas deferens; 4. retractor of penis ; 5. orifice of vagina. 
PLATE XII. 
Figs. I. — III. H. intertexta. 
Fig. I. Genitalia. 1. Testicle; 2. epididymis; 3. accessory gland 
of do.; 2." vas deferens; 4. prostate; 5. penis; 6. retractor of do.; 
7. sac of the dart : 8. glandular pouches; 9. ovary; 10. oviduct; 11. 
genital bladder; 12. duct of do. to the vagina ; 13. division of the duct, 
enclosing the lower part of the genitalia; 14. retractor of the dart sac; 
15. portion of the duct of the genital bladder, enclosing the cloaca; 16. 
cloaca. 
Fig. II. Lower part of the genitalia laid open. 1. Penis; 2. por- 
tion of the duct of the genital bladder, which encloses the lower part of 
the genitalia, laid open; 3. vas deferens; 4. neck of the oviduct; 5. 
duet of the bladder; 6. the portion of do. to the vagina ; 7. dart sac ; 
8. glandular pouches ; 9. dart; 10. orifice of the vagina. 
Fig. III. a. the dart, the size of nature; b. do. much magnified. 
Figs. IV — VII. H. ligera. 
Fig. IV. Digestive apparatus. 1. Buccal body; 2. retractor of 
do.; 3. oesophagus; 4. stomach; 5. intestine; 6. salivary gland; 7. 
hepatic duct. 
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