124 
MOLLUSCA. 
duchy of Lauenburg are given in JH. Ver. LUneb. ii. 1866, pp. 118 & 119, 
and Nadir, malak. Qes. ii], p. 124. 
Several land and freshwater spp. collected on the small island Greifs- 
walder Oie ” near RUgen, and on the island of Usedom, Pomerania, are enume- 
rated by Reinhabdt, ibid. pp. 164-167. 
New localities for Valvata macrostoma (Steenstr.) in Northern Germany 
are given by Friedel, ihid. p. 73. 
Land-shells observed in Silesia are briefly noted by Rohrmann, ihid. p. 77. 
49 species of terrestrial and 20 of freshwater shells found in the mountains 
of Thuringia are enumerated by Lappe, ibid. pp. 103-106. 
Land-shells observed near Halle, and especially Mollusca found in the so- 
called salt lake near that town, are enumerated by Reinhardt j the latter 
are all well-known freshyrater spp. of wide European distribution, except 
one species of Hydrobia {vitrea, I)rap. ?) j but it is not ascertained whether 
this lives in the lake, in which only dead shells have been found, ibid. pp. 2-9. 
In a second article, the amount of salt in the water of this lake is stated to 
increase from 0T68 per cent, at the surface to 0-963 per cent, at the greatest 
depth ; and the Mollusca living in the lake are compared with those living 
in the Baltic, pp. 57-60. * 
Kobelt (Fauna der nassauischen Mollusken, 286 pp., 9 pis.) 
publishes a very elaborate manual of the land and fresh- 
water Mollusca of Nassau, in whicli 124 Gastropods and 
16 Bivalves are accurately described and figured, with many 
valuable remarks on habits and localities j some concluding notes 
as to their geographical distribution through the province (also 
published in Mai. Bl. xviii. pp. 200-212) prove that the moun- 
tain-region is here much poorer in species, and generally also in 
individuals, than the plain. As the German species not yet 
found in Nassau are also mentioned and shortly characterized, 
this book forms a very useful manual of German conchology. 
Sandberger gives some supplementary observations on this work, with 
notes concerning the environs of Briickenau, which, being on a new red sand- 
stone formation, is very poor in Mollusca. Nachr. malak. Ges. iii. p. 200. 
Alsace and Lorraine. Morlet (J. de Conch, xix. pp. 34-39) publishes a 
list of 145 species observed by him near New Breisach, Colmar, and Belfort. 
Most of these species occur also on the other side of the Rhine, in Baden, 
Wirtemberg, and Nassau; but near Belfort certain spp. of a more southern 
character are found, such as Hyalina hydatina^ JJnio requieni, &c.: Martens, 
SB. Nat. Fr. 1871, pp. 98 & 99 (where also are some notes respecting our 
knowledge of the Mollusca of Lorraine). 
Bavaria. 113 spp. of Mollusca found near Augsburg are recorded by 
Clessin, with various interesting notes concerning their topographical dis- 
tribution. The spp. described and figured in 1812 by Von Alten from this 
district are carefully reviewed. Ber. Ver. Augsb. xxi. pp. 83-126. The 
same author also treats of 14 species of Clausilia, occurring in S. Bavaria, 
Nachr. malak. Ges. iii. pp. 134-137. Several Mollusca observed near Wal- 
chensee, S. Bavaria, between 2000 and 5000 feet, by Reinhardt, are enume- 
rated, ibid. p. 186. 
Wirtemberg. Levdig (JH. Ver. Wiirtt. 1871, p. 240) notes the occurrence 
