293 
Devon and Cornvoall, Belgium^ the Eifel, 
I may here appropriately advert to the remarks made by 
Capt. Portlock, R.E., late President of the Geol. Soc. of 
Dublin, on Mr. Griffith’s arrangement of the strata in the 
south of Ireland, as well deserving of the attention of the 
latter* * * § . He observes, that Mr. Griffith’s transference of 
those strata which were formerly designated as of the transi- 
tion epoch to the old red sandstone, must be considered as 
springing from the generalizations in Devonshire of Professor 
Sedgwick and Mr. Murchison. To those generalizations I 
have objected in the paper referred to above in the Lond. 
and Edin. Phil. Mag. for August 1839; and I have already 
stated that Mr. Austen started similar objections in the same 
month. But we may proceed a step further, and show that 
evidence is not wanting to prove that the older stratified rocks 
of Devon and Cornwall belong to an ancient transition series. 
The genus Clymenia^ discovered and determined by Count 
Munster in the Fichtelgebirge, occurs also in Cornwall and 
Devon according to the observations of Mr. Ansted, Professor 
Sedgwick, Mr. Murchison, Mr. De la Beche, and Professor 
Phillips. In the Fichtelgebirge the Clymenife are accom- 
panied by Goniatites also, and Count Munster enumerates 
fourteen species of the former and tv/enty-six species of the 
latter, together with one hundred and eighteen species of 
other fossils; namely, Trilohites 14 species, Serpula 1, Bel- 
lerophon 3, Orthoceras 22, Gasteropoda 31, Conchifera 43 
(among which are species of Ortliis and Terebratula, but no 
Sph'ifera^ according to M. Von Buchf), Crinoidea 4. This 
tract is referred by Count Munster to an ancient transition 
series, the Clymenice being confined to it, and not occurring 
in the upper strata of the country, namely, in the carbonife- 
rous limestonej. Von Buch also considers this tract and the 
environs of Prague as belonging to the more ancient strata of 
the transition epoch, and as being perhaps the oldest of that 
class to be found in Germany§. And M. Beyrich makes the 
general observation, that Clymenice appear restricted to the 
older transition strata, not having hitherto been met with 
* See pp. 25 to 27 of the President’s Address, February 14, 1839, in 
Journal of Geol. Soc. of Dublin, vol. ii. To Capt. Portlock we are in- 
debted for the discovery of a small transition district in the county of Ty- 
rone, which embodies several fossils common both to the Silurian region 
and to certain transition tracts in North America, Ibid. pp. 28, 29. 
t Bulletin de la Societe Geologique de France — Seance de Mars^ 1836. 
Tome vii. p. 156. 
I Bayreuth, 1832; Annales des Sciences Naturelles. Seconde serie. 
Tome ii. 1834. 
§ Bidletin de la Societe Geologique de France — Seance de Marsy 1 836. 
Tome vii. 
