PLATE XLV. 
Goodsiria coccinea, Cunningham. 
a. Anus. 
at. Atrial aperture. 
br. Branchial aperture. 
h. v. Blood-vessel. 
ec. Ectoderm. 
en. Endostyle. 
end. Endoderm. 
i. Intestine. 
i. 1 . Internal longitudinal bar of bran- 
chial sac. 
l.v. Fine longitudinal vessels of bran- 
chial sac. 
m. Mantle. 
Tries. Mesoderm. 
0. Ovum. 
o.d. Oviduct. 
ce. (Esophagus. 
hbr.c. Peribranchial cavity, 
r. Kectum. 
sg. Stigmata of branchial sac. 
st. Stomach. 
t.k. Terminal bulb on vessel in test. 
^.m. Test matrix. 
tr. Transverse vessel of branchial sac. 
tr'. Smaller transverse vessel of bran- 
chial sac. 
t.v. Spermatic vesicles. 
V. Vessel in test. 
v.d. Vas deferens. 
Fig. 
Fig. 
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Fig. 
5. 
6 . 
1. Part of large colony of Goodsiria coccinea; natural size.. 
2. Several small colonies of Goodsiria coccinea ; natural size. 
3. Anterior end of Ascidiozooid, showing apertures ; enlarged. 
4. Part of test of Goodsiria coccinea, showing vessels ; magnified (S., 1 inch). 
Part of branchial sac of Goodsiria coccinea, seen from interior ; magnified 
(S., 1 inch). 
Part of branchial sac of young Ascidiozooid, seen from interior ; magnified 
(S., 1 inch). 
7. Part of branchial sac of adult Ascidiozooid, seen from interior ; magnified 
(S., 1 inch). 
8. Small part of branchial sac, seen from the interior ; highly magnified (S., \ inch). 
9. Vascular appendage attached to posterior end of Ascidiozooid ; magnified 
(S., 1 inch). 
Transverse section of vascular appendage in test ; magnified (S., 1 inch). 
Small part of transverse section of vascular appendage ; highly magnified 
(S., ^ inch). 
Origin of vascular appendage from posterior end of Ascidiozooid ; magnified 
(S., 1 inch). 
Section through mantle and polycarps of Goodsiria coccinea ; highly magnified 
(S., ^ inch). 
14. Polycarp of Goodsiria coccinea, dissected out ; highly magnified (S., inch). 
15. Endocarp of Goodsiria coccinea, detached from mantle; magnified (S., 1 inch). 
16. Transverse section through endostyle and neighbouring structures ; highly 
magnified (S., ^ inch). 
17. Alimentary canal of Goodsiria coccinea ; enlarged. 
18. Section across stomach of Goodsiria coccinea, showing folds in the interior; 
magnified (S., 1 inch). 
1 9. Stomach of another Ascidiozooid of Goodsiria coccinea, showing the caecum ; 
enlarged. 
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12 . 
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