30 ASTRANGIACE^. 



CLADOCORACEiE M.-Edw. & H. 

 CLADOCORA M.-Edw. & H. 



Cladocora (pais) Ehrbg. & Hemp. 



Cladocora debilis M.-Edw. & H. 



Specimens of a Cladocora somewhat different from C. arhuscula, 

 common in shoal water, are referred to this species. They are 

 slenderer, less branching, have a more shallow fossa, well-developed 

 pali and columella, and more exsert septa. 



Off Sand Key, in 26 fathoms. 



Off French Reef, in 45 fathoms. 



Off Elbow Reef, in 49 fathoms. ' 



Off Carysfort Reef, in 63 fiithoms. 



Cladocora arhuscula, as far as my observations go, is fomid from low- 

 w^ater mark to 13 fathoms. It is possible that Cladocora debilis may 

 be merely a deeper water variety of this species. 



ASTRANGIACEJE M.-Edw. & H. 

 PHYLLANGIA M.-Edw. & H. 



Sijnclepas Lymax. Proc. Best. Soc. Nat. Hist., VI. p. 274, 1857. 



Phyllangia americana IVI.-Edw. & tt. 



Syndepas Gouldii Lyman 1. c. 

 Stellangia reptans? DucH. & Mich. 



Off Donble-Headed Shot Key (Elbow Key), in 315 fathoms. 



Dead specimens, rather worn, Avere dredged up with quite a number 

 of other dead corals at this place, shoal-water and deep-water species 

 being mixed together. The locality is very near the edge of the 

 Salt Key Bank, at the foot of a very steep submarine slope, and 

 washed by the edge of the Gulf Stream. 



