186 1IR. J. W. KIEKBY OJS THE FOSSILS OF THE 



Pal^eontsctts comptf/s, Agassis. 



Common. Occurring in various postures — sometimes strongly 

 arched, at others straight. The largest examples are from 10 to 

 12 inches in length. 



Pal^ontscus eleoans. Sedgwick. 

 Common. 



Paljsonisctjs macbopthalmus, Agassiz. 

 Not rare. 



Pal^oniscus glaphyeits, Agassiz. 



' Four or five specimens of this rare form are in the collection of 

 Mr. Atthey. They are from 1^ inch to If inch long. Carelessly 

 examined, they might he mistaken for the young of the preced- 

 ing species, from which however they can he easily distinguished 

 by their large scales. From Pal. varians, which it more closely 

 approaches, this species differs in the coarse serrations of the 

 posterior margin of its scales. One of the smallest specimens 

 differs from the others in being very narrow, and in gradually 

 attenuating backwards from a relatively large head. 



Paljeonfscfs LOjsrGissr&nrs ? Agassiz, 



A single specimen, which appears to belong to this species. It 

 is nearly 8 inches long, and scarcely more than 1 inch high. 



Ullmannia selagfnoedes, Brong . 

 Not common, and very imperfect. 



Calamites, sp. 



A fragment of an undoubted Calamite, showing one articula- 

 tion, and having rather fine ribs, has been found by Mr. Atthey. 

 It has some resemblance to the specimens found associated with 

 Ullmannice and small Palcsonisci in the Upper Magnesian Lime- 

 stone, at Fulwell ; and also, like them, to some of the species of 

 the Coal Measures. 



Along with the preceding forms there has occurred a curious 

 fragment of wood. It is about 8 inches long by 4 inches wide ; 



