Giumbel—Freshwater Shells in Permian Rocks. 205 
together with Walchia piniformis, Schl.; Calamites gigas, Brongn. ; 
Cyatheites confertus, Sternb., sp.; C. Candolleanus, Brongn.; C.arbo- 
rescens ; Odontopteris obtusiloba, Naum.; Odontopteris, sp.; Cyclocar- 
pon Ottonis, Gutb., and an Annularia. 
The animal remains are stated by Dr. Giimbel to correspond, for 
the most part, with those described by Dr. Ludwig from the coal- 
bearing beds of Manebach, near IJmenau; and, as the one deposit 
belongs to the Rothliegende, it follows, of course, that the other is 
Permian also. The species that have been determined with the 
reatest certainty are Unio tellinarius, Goldf.; U. carbonarius, 
Goldf.; U. Thuringensis, Ludw.; U. Goldfussianus, De Kon., and 
Anodonta ovalis, Mart. ‘There is also a large form of Unio very 
much like U. crassidens, Ludw., and a new and very small species 
of Anodonta, to which the author gives the name of A. phaseolina: 
the latter is about the size of A. obstipa, which the author thinks 
may possibly be an Estheria; and it is very much like young indi- 
viduals of Unio Goldfussianus. 
The Estheria, named E. rugosa by Dr. Giimbel, approaches most 
nearly in form EL. tenella, Jordan, and E. exigua, Kichw.; the ridges 
being most like those of EL. Middendorfi, Jones, but not so regular. 
One remarkable fact in connection with this Estheria is that, 
whereas the shells of the associated species of Unio and Anodonta 
are for the most part replaced by iron-pyrites (or sometimes by zinc- 
blende, galena, or calcite), the shell of the Estheria itself has net 
been mineralized. 
In the Appendix, Dr. Geinitz states that this interesting discovery 
of Dr. Giimbel’s has induced him to examine independently the 
whole of the Freshwater Shells that have been found in the Coal- 
measures and in the Lower Dyas. With respect to those from near 
Crock, Dr. Geinitz has come to almost the same results as Dr. 
Giimbel; the chief points of ditference being that the former con- 
siders that Anodonta phaseolina, Giimb., may perhaps be the young 
of Unio Goldfussianus, and that the shell referred by Dr. Gtimbel 
to Anodonta ovalis, Martin, more probably belongs to A. subparallela, 
Portl., sp. Dr. Geinitz differs from Dr. Ludwig, however, in many 
important’ points; and he also thinks that the shell described by 
Mr. Salter as Anthracomya carbonica* is really a Dreissena. 
H. M. J. 
GxroLocicaL Notes oN MENTONE, NEAR NICE. 
By C. H. Gavpin and Marruew Mocermes,F.G.S. 8vo. pp. 16; 1 Plate. Lau- 
sanne, 1865. (From the Bulletin Soc. Vaud. Sc. Nat., vol. viii. No. 52.) 
|i PSEeeet’ is sheltered by an amphitheatre of calcareous hills, 
a composed chiefly of Middle and Upper Cretaceous rocks: a 
portion of a Belemnite, and fragments of Inoceramus Cuvieri, and 
some Foraminifera, are all that have been discovered inthem. The 
latter are Teaxtularia globulosa, Ehr., Nonionina globulosa, Ehr., 
* The shell referred to by Dr. Geinitz was described and figured as Anthra- 
coptera carbonaria, Quart Journ. Geol. Soc., vol. xix. p. 79, fig. 3. 
