210 Dr. C. 0. Trechmann — " Hypersthenite" of Carroeh Fell. 



claw. This digit is well shown in the right wing represented in 

 Fig. 1, and also in the restoration, given below, Fig. 3. 



In the restoration here attempted, the writer has endeavoured to 

 reproduce (1) the parts actually present or clearly indicated in the 

 specimen described, and (2) those which the former seemed to 

 require to complete the outward form in life. The membrane at 

 the base of the tail may have been somewhat less in extent, and the 

 fold of the skin above the fore-arm either more or less developed 

 than here represented, but the facts now known render the outlines 

 here given more than probable. The hands are represented with 

 the palms forward. 



Fig. 3. 



-Eestoration of Ilhamphorhynehus phyllurus, Marsh. 

 One-seventh natural size. 



The present species appears to be most nearly related to Rhamplio- 

 rhjnchiis Gemmingi, von Meyer, from the same geological horizon, 

 and near the same locality. That it is quite distinct, however, is 

 shown, aside from the difference in size, by the complete ankylosis 

 of the scapula and coracoid, and by the fifth digit of the hind foot 

 being well developed, and having thi'ee phalanges. In the name 

 Bhamphorhynchus phyllurus, here proposed for the species, the latter 

 designation refers to the leaf-shaped caudal appendage, which 

 appears to be one of its most characteristic features. 



For the long delay in the description of this important European 

 specimen, the writer can only plead Vembarras des richesses nearer 

 home. 



Tale College, New Haven, March 14, ] 882. 



III. — Note on the So-called " Hypersthenite " of Caerock Fell, 



Cumberland. 

 By Chas. 0. Trechmann, Ph.D. 



THROUGH the kindness of Mr. J. J. Harris Teall, F.G.S., I have 

 been enabled to examine a hand-specimen of the above rock, 

 gathered by himself at a point about half-way between the village 

 of Mosedale and the summit of Carrock Fell. In general appearance 

 it coincides with the white or grey variety of the hypersthenite of 



