ALCYONAUIA. 15 



PLATE II. 



FiG. 11. Ceruloisix ili'lii-ithiln. A few branches of a colony, X '1. 

 12 Ceraioisis delicatula. a, Spindle-shaped spicule ; 6, triangular plate, x Ki(. 

 13. Ceratoisis antarctica. A terminal branch, X 12. 

 IK Ceratnixia antarctica. a, Spindle-shaped spiculu ; ?>, plate, xl". 

 ,, 15. Ceratoisis tnitinr/ira. View of corona and folded tentacles, to show the arrangement of the 



spicules, x ca. 50. 



10. Ceratoisis spieata. A branch, x 2. At n. the horny nodes may be seen. 

 17. Ceratiilxi* xjiirata. Side view of a calyx, x ca. :!(. 

 is. CiTiitoisix apicata. Spicules. , Forked spieule of a calyx; b and c, irregular spicules of the 



cccnenchym and calyx base, x - r ><>. 



.. 10. 7%<w//v//.-/ (fn((tirtii-n. A spieule of the corona, x (W. (Sue also Fig. 24.) 

 20.- Clavulcoriafrankliniana. Nat. size. 

 21. Clavularia franklin ittiiii. Spieule of body wall, X 75. 

 ,, 22. --Alfi/iiiiiiini /,it/s*/ri'i. Xat. size. 

 23. Alcyonhm paessleri. a, Short club spieule of the cceneuchyiu, x 15n ; /;, lung spitiillu-shiiped 



spieule of the body wall of an anthocodia, X H"><i. 

 24. Tliouarcllit anlarctica. A small piece of a branch of a dried specimen, drawn from a photograph, 



X ca. 20. 



