52 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 66 



EXPERIMENTS WITH CERIONS ON THE FLORIDA KEYS 



The IJahama Cerion Colonies planted on the Florida Keys were 

 examined by Dr. Bartsch this year between Jvme iS'and 30. A more 

 detailed report of the status of the various colonies was published 

 in the Year Book No. 14 of the Carnegie Institution of Washington, 

 pages 194-196. 



A large number of adult specimens of the first generation of 

 Florida grown individuals were found, and these show^ much more 



Fig. b/. — Noddy terns (Aiioiis stolidiis) on their nesting ground, Bird Key, 



Tortugas. 



fully than the scanty material available last year did, that this first 

 generation has responded to the new conditions in a remarkable 

 manner. The facts which were pointed out in a paper by Dr. Bartsch, 

 Publication No. 212 of the Carnegie Institution of Washington, pages 

 203-212, plates 1-8, have been fully substantiated and materially added 

 to by the data obtained this year. 



A new experiment was started in the transplantation of 307 speci- 

 mens of the Florida tree snail Liguus fasciatiis to the Tortugas, one 

 set of which was planted on (larden Kev within the Fort, and two on 

 Loggerhead Key. 



