Correspondence. 431 



been found in the heap of rubbish near the Wych, which was thrown 

 out in the construction of the tunnel through the hills. Three of 

 these specimens are in my own possession, and there are at least two 

 others in the collection of Dr. Grmdrod, of Malvern ; besides which, 

 if I have not been misinformed, there is a specimen from the same 

 locality in the cabinet either of Mr. Fletcher or of Mr. Gray, of 

 Hagley. The most fully grown of these Malvern specimens corre- 

 sponds to Mr. Lindstrom's fig. 2 in size, but they are all of them 

 more depressed in form than his fig. 1, and have the point more 

 curved upwards. Moreover, most of the specimens have grown up 

 in a somewhat spiral manner, giving a slight twist to the body of the 

 coral. (See Geol. Mag., Vol. III., pp. 356 and 406, Plate XIV.) 



The species first appears in the flaggy beds of the May Hill Sand- 

 stone in the Gullet Wood, near Eastnor Obelisk, above the purple 

 sandstones, as a mould, and in this condition appears to be identical 

 with the Tetraia quadrata, McCoy, from the Upper Silurian rocks of 

 Ireland (Sil. Foss. t. 4, f. 18). The tunnel specimens are from the 

 shales interbedded with the Woolhope limestone, or base of the 

 Wenlock Shale ; but the specimen referred to in Mr. Davidson's note 

 appears to belong to a higher 230sition in the series, for if by " Upper 

 Wenlock Shales" it is iatended to indicate the shales above the 

 limestones, these shales, notwithstanding the Wenlock aspect of 

 their fossil fauna, are considered on good authority to belong to the 

 base of the Ludlow series. 



There is nothing like an operculum to any of the Malvern specimens. 

 Believe me, dear sir, yours very truly, 



Hakvey B. Holl. 



WoECESTEE, August 4.ih. 



EOZOUN IN BOHEMIA AND BAVARIA. 



Dear Sir, — In your Magazine for July there is, in the article 

 " EozooN IK Bohemia and in Bavaria," the following passage : — 

 " Dr. A. Fritsch has found Annelid-marks in this Grauwacke at 

 Przibram ; and Dr. Keuss has detected Crinoidal and Foraminiferal 

 remains in a limestone equivalent to the above near Eeichenstein," 



This remark contains several errors,^ which I beg leave to correct. 



1. The Annelid-marks are not found at Przibram, but in the dark 

 blue " Kieselschiefer " at Labkovitz, at Skrej, and in the Scharka 

 valley, near Prague. This Kieselschiefer belongs to the Przibram 

 schists. {Barr ancle's Etage B.) 



2. The Crinoidal and Foraminiferal (?) remains are not detected 

 by Professor Keuss, and not found near Eeichenstein, but I found 

 them myself in September, 1864 and August, 1865 in the black 

 limestone at Pankratz near Eeichenberg. This black limestone, 

 which belongs to the range of the " Teschkengebirge," lies between 

 Phillits, and its age is still very doubtful, its external appearance 

 most resembles Mountain Limestone. The Crinoids have a nice 



1 Introduced partly by Giimbel, partly by T. E. J., translator. — A. F. 



