ALCYONARIA. 15 



PLATE II. 



Fiu. 11. — Geratoisis delicatula. A few branches of a colony, X 2. 



12 — Geratoisis delicatula. a, Spindle-shaped spicule ; h, triangular plate, x 100. 



IS.— Geratoisis antarctica. A terminal branch, x 12. 



14. — Geratoisis antarctica. a, Spindle-shaped spicule ; b, plate, x 100. 



15. — Geratoisis antarctica. View of corona and folded tentacles, to show the arrangement of the 



spicules, X ca. 50. 

 16. — Geratoisis spicafa. A branch, x 2. At n. the horny nodes may be seen. 

 17. — Geratoisis spicata. Side view of a calyx, x ca. SO. 

 18. — Geratoisis spicata. Spicules, a. Forked spicule of a calyx ; & and c, irregular spicules of the 



coenenchym and calyx base, X 50. 

 19. — Thouarella antarctica. A spicule of the corona, x 60. (See also Fig. 24.} 

 20. — Glavularia franMiniana. Nat. size. 

 21. — Glavularia franMiniana. Spicule of body wall, x 75. 

 22. — Alcyonium paessleri. Nat. size. 

 23. — Alcyonium paessleri. a, Short club spicule of the coenenchym, x 150 ; l, long spindle-shaped 



spicule of the body wall of an anthocodia, x 100. 

 24. — Thouarella antarctica. A small piece of a branch of a dried specimen, drawn from a photograph, 



X ca. 20. 



