42 Professor King on certain Species of Permian Shells 
vations,—“ With all this evidence before me, I considered it 
necessary to ascertain what was really the Anomites crumena 
of Martin, and whether the Permian C. Schlotheimi does really 
occur in the Carboniferous limestone; and it was not until 
after much comparison and investigation that I became con- 
vinced that not only was the Carboniferous specimens alluded 
to by Professor King* and others specifically identical with 
the Permian Camarophoria, but that it was impossible to 
distinguish the last from A. crumena of Martin” (p. 114). 
There is very little difference between Mr Davidson and 
myself. Ihave no doubt, considering the “ nine specimens” 
I observed in the “ Gilbertsonian Collection of the British 
Museum,” that C. Schlotheimi occurs as a Carboniferous 
species. Besides, I find a confirmation of this belief in the 
following memorandum written in an interleaved copy of my 
Monograph,—‘“ I observed some specimens of C. Schlotheimi, 
mounted on a tablet in the Collection of the Museum of Prac- 
tical Geology, which were found in the mountain limestone of 
Dovedale in Derbyshire. Mr Salter named them as above 
at my suggestion. August 1851.” But I do not agree with 
Mr Davidson in his conclusion that Anomites crumena is the 
same species. 
In stating that A. crumena differs from C. Schlotheimi “in 
being narrower and more acuminated behind,” I was guided 
by Martin’s figure of the former species, and by the fossil 
represented under fig. 3, plate Ixxxiii. of the ‘ Mineral Con- 
chology,” and identified by Sowerby with the same species. 
As stated in a foot-note in page 119 of my “ Monograph,” it 
was in the autumn of 1848, while looking over the type spe- 
cimens figured in the ‘‘ Mineral Conchology,” that I observed 
Martin’s fossil to be a Camarophoria.t I was informed that 
it “originally belonged to Mr Martin.” This circumstance, 
and the close resemblance of the specimen to the figure in the 
“Petrifacta Derbiensia” (pl. xxxv. fig. 4), led me to express 
* Mr Davidson appears to have overlooked the Weardale species. I purpose 
describing it on another occasion, 
t ‘The other specimens represented in the ‘Mineral Conchology,’ plate 
Ixxxiii., figs. 2, 2*, belong to a very different species, and evidently to the 
genus Rhynchonella.” This is stated in the foot-note referred to. 
