PLATE XXXVI. 
Figs. 1-8. Leptoclinum speciosum, n. sp. 
Fig. 9. Leptoclinum speciosum, var. asperum, nov. 
ll. Bladder cell. 
l>r. Branchial aperture. 
cl. Cloacal aperture. 
en. Endostyle. 
l.v. Fine longitudinal vessels of bran- 
chial sac. 
m.l. Muscle band in mantle, 
r. Rectum. 
sp. Calcareous spicule in test. 
st. Stomach. 
t.Tc. Terminal bulb on vessel in test; 
t.m. Test matrix. 
t.v. Spermatic vesicles. 
V. Vessel in test. 
v.d. Vas deferens. 
Fig. 1. Large colony of Leptoclinum speciosum; natural size. 
Fig. 2. Part of tlie upper surface of Leptoclinum speciosum ; slightly enlarged. 
Fig. 3. Vertical section through a thickened part of a colony of Leptoclinum speciosum, 
showing Ascidiozooids ; magnified (S., 1 inch, reduced). 
Fig. 4. Part of a section through the middle of the test of Leptoclinum speciosum; 
highly magnified (S., ^ inch). 
Fig. 5. Surface view of part of ectoderm of Leptoclinum speciosum; highly magnified 
(S., ^ inch, enlarged). 
Fig. 6. Part of the mantle of Leptoclinum speciosum; highly magnified (S., ^ inch). 
Fig. 7. Section through the testis and vas deferens of Leptoclinum speciosum ; highly 
magnified (S., ^ inch). 
Fig. 8. Part of a vertical section through the colony of Leptoclinum speciosum, showing 
structure of the Ascidiozooids, &c. ; magnified (S., 1 inch). 
Fig. 9. Four colonies of Leptoclinum speciosum, var. asperum ; natural size. 
