MOLLUSCA. 
193 
In tins reprint even the original pagination is retained. It 
will be of value to all who regard the restitution of priority as 
one of our principal duties, however obscure and incorrect the 
author, and however small his influence upon his contemporaries 
may have been. 
C. Contributions to Faunas. 
a. Land and Freshwater Mollusca. ' 
I. Europe, 
Morch, O. a. J. Synopsis Molluscorum terrestrium et fluvia- 
tilium Danise; or Fortegnelse over de i Dannemark fore- 
kommende Land- og Forskvandsbldddyr. Naturh. Foren. 
Yidensk. Meddel. for 1863. Kjobenh. 1864. 
A most elaborate and instructive paper, not only with regard 
to the local occurrences, but also to the arrangement of genera 
and the distinction of varieties. Particularly surprising and new 
is the occurrence of Cyclostoma elegans in Jutland j hitherto only 
dead specimens have been found. 
Kreglingbr, C. Verzeichniss der lebendenLand-und Siisswasser- 
Conchylien des Grossherzogthums Baden [List of the living 
land and freshwater shells of the Grand Duchy of Baden] . 
Yerhandl. naturwiss. Yereins Karlsruhe, vol. i. 4to, pp. 10: 
written at the same time as a little work with similar con- 
tents, by A. Gysser, Die Mollusken-Faima Badens. Heidel- 
berg, 1863, 8vo, but published a little later. 
One hundred and twenty species, not including the slugs, of 
which eleven species are enumerated by Hr. Gysser. The follow- 
ing species which are not generally distributed over Germany 
are of particular interest : Cyclostoma elegans, Pomatias macu- 
latus, Helix carthusiana (Miill.), H. sylvatica (Drap.), H. yiUosa 
(Drap.), H. cobresiana (Alten), Clausilia itala var. hraunii 
(Charp.). Pupa quadridens is added by Hr. Gysser. A com- 
parative list of the shells of two neighbouring countries shows 
that Baden has seventeen species more than Wiirtemberg, and 
two more than Nassau. For, on the one hand, it possesses several 
species which properly belong to the Alpine and Subalpine 
Fauna, and probably have been carried down by the Rhine, as, 
indeed, in Baden they are not found beyond a certain distance 
from the banks of the river ; for instance, Helix villosa, H. cobre- 
siana, and H. sylvatica. On the other hand, some other species 
which have a wide geographical distribution in western and 
southern Europe, are very local in Germany, occurring chiefly in 
the mild climate of the valley of the Middle Rhine ; such species 
are Cuclostoma eleqans. Helix carthusiana, and Pupa quadridens, 
1864. [vol. I.] o 
