ANIMALIA?— PAL.^OXYRIS. 275 



Palmoxyris is now regarded by many paleobotanists as representing 

 the egg capsules of certain Paleozoic Selachians. The writer has at present 

 under examination a series of specimens, including several new si^ecies, 

 that will, it is hoped, throw some additional light on the nature and 

 organization of these very interesting remains. 



The name Spirangium, proposed by Schimper on the ground of 

 propriety, should be abandoned. While it has long been known that these 

 fossil remains have no relation to ths living Xyris, the generic appellation 

 Palceoxyris is clearly understood to have been applied exclusivel}' to this 

 type. It therefore has priority, and in its proper function as a generic 

 designation, not as a description, it should prevail. 



Locality. — Gilkerson's Ford, Grand River, U. S. Nat. Mus., 6203. 



