Plate 27 



Page 

 Figs. 1-4. Schizopodrella isabelleana Svaitt, 1873 97 



1. Zoarium, natural size, consisting of hollow branches. 



2. Surface, X 20, with narrow oriented zooecia and small 



avicularia. 



3. Ovicelled portion of the same colony, X 20, with broad 



zooecia, 



4. Inner side of a colony, X 20. The internal denticles 



are visible by transparency. 

 St. Thomas, Virgin Islands, West Indies. 

 5-12. Schizopodrella pungens, new species 95 



5. Portion of colony, natural size. 



6. Surface with ovicelled zooecia, X 20. The umbo and 



avicularia are salient. 



7. Specimen, X20, after treatment with Javelle water. 



The avicularia are salient and the armature of the 

 poster and the short spines are visible. 



8. A group of ovicelled zooecia, X 20. 



9. Zooecia with ectocyst and opercula, X 20. The umbo 



is quite salient. 



10. Marginal zooecia, X 20, 



11. Superior layer of a plurilamellar tubuliform colony, 



X 20. The avicularia are large and the extremity 

 of the uplifted mandible is always supported on the 

 proximal border of the rimule. 



12. Specimen with ectocyst, X 20. The ectocyst is thick- 



ened considerably above the diseased or accident- 

 ally broken zooecia. 

 Cedar Keys, Fla. 

 192 



