Wm. Carrufhers — Hoots in Sarsen Stones. 



361 



very nearly equal in size to P. Richardsoni, but is distinguished by 

 the relatively smaller size of the last true molar. 



With regard to its serial position, the genus was originally referred 

 by Prof. Cope to the Insectivora, but in his latest memoir ^ it is 

 placed among his Creodonta, in the family Leptictidce, which 

 inclndes Proviverra ( = Stypolophiis,Co'pe, Cynohycenodon, Filhol). 



Provisionally accepting this reference, the present writer will 

 include Plaly cheer ops in the group Carnivora Primigenia;^ which 

 appears to connect the true Carnivora by insensible gradations with 

 the Insectivora. Prof. Cope suggests that the genus may be an 

 ancestral form connected with Erinaceiis. 



VI. — Notes on Fossil Koots in the Sarsen Stones of Wiltshire. 

 By William Carruthers, F.E.S., etc. 



HAVING had placed in my hands by Prof. T. Rupert Jones (who 

 has already communicated some notes on Sarsen Stones to your 

 pages, Vols, for 1875 and 1876) some microscopic prepai-ation of 

 plant-remains found in Sarsen Stones from Wiltshire, belonging to 



Impressions of Eoots of a Palm (?), seen in a -weathered Sarsen-stone in a wall at 

 Abury (from a pencil-sketch by Major C. C. King). 



1 Amer. Nat. 1884, pp. 347, 479. 



2 "Catalogue of Fossil Mammalia in the British Museum," pt. i. p. 20 (1885). 

 The writer finds it will be necessary to issue a supplement to this part, as he is con- 

 tinually coming across specimens in the Museum which have hitherto been referred to 

 other orders, but which he now finds should be included in those treated of in this 

 part. He proposes (with the sanction of the Museum authorities) to issue this 

 supplement on the completion of the Catalogue of the Ungulata. 



