F. J. Meggitt 
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DESCRIPTION OF PLATES XVI AND XVII. 
The following letters apply to all the figures: 
b., central nerve mass; c., cirrus; cl., genital cloaca; c.s., cirrus-sac; h., hooks; l.m., V.m'., 
l".m" longitudinal muscles; m., musculature of hooks; n., longitudinal nerve; ov., ovary; r., 
rostellum; r.s., receptaculum seminis; s.a., sacculus accessorius; t., testes; t.m., t'.m'., transverse 
muscles; v., vagina; v.d., vas deferens; v.ex.c, ventral excretory canal; ml., fused villi of intestine; 
v.s., internal vesicula seminalis; v'.s'., external vesicula seminalis; ut., uterus; y.g., yolk-gland. 
PLATE XVI. 
Figs. 1-2. Hymenolepis coronula (Duj.). 
Fig. 1. Proglottis showing male organs. 
Fig. 2. Older proglottis showing female organs. 
Fig. 3. Hymenolepis gracilis (Zed.). Mature proglottis. 
Figs. 4-7. Cotugnia fastigata n. sp. 
Fig. 4. Strobilus without scolex. 
Fig. 5. Half a mature proglottis. 
Fig. 6. Transverse section through musculature of proglottis. 
Fig. 7. Scolex attached to intestine of host. 
PLATE XVII. 
Fig. 8. Cotugnia fastigata n. sp. Hooks from rostellum. 
Figs. 9-11. Cotugnia digonophora (Pasq.). 
Fig. 9. Scolex. 
Fig. 10. Mature proglottis. 
Fig. 11. Transverse section through musculature of proglottis. 
Figs. 12-13. Oochoristica erinacei n. sp. 
Fig. 12. Scolex 
Fig. 13. Mature proglottis. 
