PLATE VIII 



Ctdeolus murrayi, Herdman. 

 Fig. 1. Cvleolus murrayi, from the left side ; natural size. 

 Fig. 2. A section through the outer part of the test, to show the blood-vessels (v.), papillae 



{t.p.), and enlarged knobs (t.k/) ; magnified (Hartn., obj. 4). 

 Fig. :J. Part of the branchial sac, from the inside, showing one of the branchial folds (br.f.) : 



magnified (Hartn., obj. 4). 

 Fig. 4. Part of the endostyle, with the edges laid out flat ; slightly enlarged. 

 Fig. 5. Part of the endostyle, seen from the inside, showing the clear edges, the spicules, 



and the central brown bands ; magnified (Hartn., obj. 4). 

 Fig. 6. A portion of one of the large branched spicules from the branchial sac. to show 



the concentric lines ; greatly magnified (Hartn.. obj. 10). 

 Fig. 7. The dorsal part of the anterior end of the branchial sac, seen from the inside, 



showing a large (tn.) and a small (tn.') tentacle, the peritubercular area, the 



dorsal tubercle, the praebranchial zone, &c. ; slightly enlarged. 

 Fig. 8. Dissection, showing the alimentary canal from the oesophageal aperture («■"•) 



onwards ; slightly enlarged. 

 Fig. 9. The terminations of the genital ducts ; magnified (Hartn., obj. 4). 

 Fig. 10. The genital glands of the right side ; natural size. 

 Fig. 11. Part of the last figure, more enlarged, showing the testis and the surrounding o\ a. 



