PLATE XXXVIII. 
Figs. 
Figs. 
Figs. 
Figs. 
Figs. 
1-4. Ccelocormus huxleyi, n. sp. 
5-9. Leptoclinum annectens, n. sp. 
10-13. Leptoclinum neglectum, n. sp. 
14-18. Leptoclinum suhjlavum, n. sp. 
19-22. Leptoclinum (?) jacJcsoni, n. sp, 
br. Branchial aperture. 
cl. Cloacal aperture. 
d.t. Dorsal tubercle. 
en. Endostyle. 
inf. Infundibulum. 
m. f. Muscle fibres. 
n. g. Nerve ganglion. 
n.gl. Neural gland. 
p.c. Pigment cell. 
p.p. Peripharyngeal band. 
sg. stigmata of branchial sac. 
sp. Spicules. 
sph. Sphincter muscle. 
t. c. Small cells in the test. 
tr. Transverse vessel of branchial 
sac. 
tn, tn'. Large and small tentacles. 
u. s. Lower surface of colony. 
v.ap. Vascular appendage. 
Fig. 1. 
Fig. 2. 
Fig. 3. 
Fig. 4. 
Fig. 5. 
Fig. 6. 
Fig. 7. 
Fig. 8. 
Fig. 9. 
Fig. 10. 
Fig. 11. 
Fig. 12. 
Fig. 13. 
Fig. 14. 
Fig. 15. 
Fig. 16. 
Fig. 17. 
Fig. 18. 
Fig. 19. 
Fig. 20. 
Fig. 21. 
Fig. 22. 
Diagrammatic vertical section of colony of Ccelocormus huxleyi; natural size. 
Part of the surface of Coelocormus huxleyi, showing pentagonal branchial apertures ; enlarged. 
One of the branchial apertures of Coelocormus huxleyi, showing lobes ; magnified (S., 1 inch). 
The nerve ganglion, neural gland, and dorsal tubercle of Coelocormus huxleyi; highly magnified (Z., j-L). 
Part of the surface of the colony of Leptoclinum annectens, showing the branchial and common cloacal 
apertures ; enlarged. 
Branchial aperture of Leptoclinum annectens, showing lobes, sphincter, and spicules ; highly magnified 
(S., \ inch). 
Semi-diagrammatic view of the anterior dorsal part of the Ascidiozooid of Leptoclinum annectens, 
showing nerve ganglion, dorsal tubercle, &c.; magnified (S., ^ inch, reduced). 
Part of the branchial sac of Leptoclinum annectens; magnified (S., 1 inch). 
The ventral part of the anterior end of the Ascidiozooid of Leptoclinum annectens, showing tentacles, 
&c.; highly magnified (S., \ inch). 
Colony of Leptoclinum neglectum; natural size. 
Part of the surface of Leptoclinum neglectum, showing Ascidiozooids ; magnified (S., 1 inch). 
Branchial aperture of Ascidiozooid of Leptoclinum neglectum; highly magnified (S., inch). 
Two spicules from the test of Leptoclinum neglectum; more highly magnified (S., \ inch). 
Colony of Leptoclinum suhjlavum; natural size. 
Ascidiozooid of Leptoclinun suhjlavum, seen from right side ; magnified (S., 1 inch). 
Large flat spicule from test of Leptoclinum suhjlavum; magnified (S., 1 inch). 
Part of the branchial sac of Leptoclinum suhjlavum; highly magnified (S., inch). 
Some of the tentacles of Leptoclinum suhjlavum; highly magnified (S., ^ inch), tn. indicates the 
dorsal tentacle of the series. 
Colony of Leptoclinum (?) jachsoni; natural size. 
Part of a transverse section through the colony of Leptoclinum (?) jacTtsoni, showing the arrangement 
of spicules and Ascidiozooids in the test; magnified (S., 1 inch). 
Part of a section through the test of Leptoclinum {?) jaclcsoni ; highly magnified (S., ^ inch). 
Tailed larva of Leptoclinum (?) jaclcsoni; magnified (S., 1 inch). 
