PLATE XXL 
Pharyngodictyon mirohile, n. sp. 
u. 
m.f. 
Fig. 
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Fig. 
Fig. 
Internal longitudinal bar of bran- 
chial sac. 
Muscle fibres. 
tr. Transverse vessel of branchial sac. 
t.c. Test cells. 
t.m. Test matrix. 
t.v. Spermatic vesicles. 
v.d. Vas deferens. 
1. Colony of Pharyngodictyon mirahile; natural size. 
2. Another colony of Pharyngodictyon mirahile ; natural size. 
3. Two colonies of Pharyngodictyon mirahile ; natural size. 
4. Ascidiozooid of Pharyngodictyon mirohile ; slightly enlarged. 
5. Ascidiozooid of Pharyngodictyon mirahile, seen from left side ; magnified 
(S., 1 inch). 
6. Section through test of Pharyngodictyon mirahile ; highly magnified (S., inch). 
7. Section through part of colony of Pharyngodictyon mirahile, to show arrange- 
ment of Ascidiozooids ; magnified (S., 1 inch). 
8. Part of mantle of Pharyngodictyon mirahile, showing muscle bands; magnified 
(S., 1 inch). 
9. Muscle band, from mantle; highly magnified (S., inch). 
1 0. Muscle fibre, from mantle ; more highly magnified (Z. > 1^)’ 
11. Another muscle fibre, from mantle ; highly magnified (Z. 
12. Part of branchial sac of Pharyngodictyon mirahile; magnified (S., 1 inch). 
13. Edge of a vessel, from branchial sac ; highly magnified (S., inch). 
14. Tentacle of Pharyngodictyon mirahile, seen from side ; magnified (S., 1 inch). 
15. Small part of tentacle of Pharyngodictyon mirahile, seen from side; highly 
magnified (S., ^ inch). 
16. Anterior extremity of endostyle of Pharyngodictyon mirahile; magnified 
(S., 1 inch). 
17. Part of male reproductive organs of Pharyngodictyon mirahile; magnified 
(S., 1 inch). 
18. Oblique section through post-abdomen of Ascidiozooid of Pharyngodictyon 
mirahile; magnified (S., 1 inch). 
