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Cricetomys gambianum 
DESCRIPTION OF PLATE IX. 
The following letters apply to all the figures: c.s., cirrus-sac; d.exc., dorsal excretory vessel; 
d.v., dorso-ventral muscles; e., egg; e.c., egg capsule; l.m., l.'m.', l/'m.", longitudinal muscles; 
ov., ovary; r.s., receptaculum seminis; L, testes; t.m., t/m /, transverse muscles; u., uterus; 
u'., remains of uterine wall; v.exc., ventral excretory vessel; y.g., yolk-gland. 
Figs. 1-2. Dipylidium oerley von Ratz. 
Fig. 1. Musculature of mature proglottis. 
Fig. 2. Musculature of proglottis containing egg capsules. 
Figs. 3-7. Inermicapsifer Zanzibarensis n.sp. 
Fig. 3. Scolex. 
Fig. 4. Mature proglottis. 
Fig. 5. Formation of egg capsules, first stage. 
Fig. 6. Formation of egg capsules, second stage. 
Fig. 7. Formation of egg capsules, third stage. 
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