MOLLUSCA. 
219 
(Malm), henslowianum., ohtusalcy pusillumy arcaaforme (Malpi), 
personatum (Malm), and nitidum, Tlie varieties in the genus 
Limn( 2 us are treated with peculiar care, those of L. limosus are 
enumerated as follows : — 
a. auricularia: normaliSy acMtior (Gras), pumila. 
/3. ovatai hurnetti (Mder), succinea (Nilss.), balthica (L., 
Nilss.), ovata (Drap.), and vulgaris (Pfeiff.). 
7 . percgra : major y labiatay and atrata. 
Generally the land- and freshwater shells of Sweden are very 
nearly the same as those of the northern and middle parts of 
Germany; but the German Helix ericetorumy obvoluta.y and 
per sonata have not yet been found in Sweden; Helix pomatia 
has been introduced and naturalized in several parts. H. nemo- 
rails is found only in the southern and middle parts of the 
kingdom; H. hortensis extends further northwards, to Nerike; 
H. arhustorum occurs throughout the country to Lapland. The 
existence of Pupa umbilicata (Drap.) on the island of Gothland 
is confirmed; Clausilia j)opillaris y on the contrary, is judiciously 
rejected as a Swedish species. There are known at present 
many more land- and freshwater shells from Sweden (113) than 
either from Norway (63) or from Finland (71). The Recorder 
may be allowed to point out on this occasion two slight inaccu- 
racies in the author^s remarks on the Norwegian species (p. 17). 
I. Helix ericetorum, was never found by the Recorder near 
Christiania, but only seen in the collcetion of Prof. Sars among 
other Norwegian shells, and he was told by this celebrated 
naturalist that this was the only specimen ever found near 
Christiania or in Norway generally, and this one was not fresh. 
2. Helix hammonis (Strom) is quoted as a species not found in 
Norway; but Strom himself was a Norwegian, and observed the- 
species he described as H. hammonis from living examples from 
the district Sondmbr in Norway. Either this specific name has 
been misapplied by Mbrch, whom Westerlund generally follows 
in nomenclature and specific distinction, or the species is really 
Norwegian. 
Gysser, a. Yergleichende Zusammenstellung der Mollusken- 
faunen der beiden aussersten nordbstlichen und siidwest- 
lichen Grenzlander des politischen Deutschlands. Mai. 
Blatt. xii. pp. 78-91. 
[Comparison of the malacological faunas of the two extreme 
provinces in the North-East and South-West, within the poli- 
tical boundaries of Germany] . 
The Helicea of the province of Prussia were enumerated some 
years ago by Dr. Hensche (Mai. Blatt. 1860) ; those of the 
Grand Duchy of Baden were explored by the author himself, 
and a list of them is inserted in the present paper, containing 
some corrections to the enumeration published in the preceding 
