MOLLUSCA. 
225 
Blanford, W. T. Contributions to Indian Malacology. De- 
scriptions of some land-sliells from Arakan, and Ava, 
with notes on distribution of described species. Journ. As. 
Soc. of Bengal, 1865, pp. 66-105. 
Contains twenty-eight new species, besides many interest- 
ing particulars about the living animals, systematic affinities, 
and geographical distribution of others. Two very distinct 
zoological provinces are stated to exist in Burmali, exclusive of 
Martaban and Tennasserim, which form a third, characterized 
by the appearance of Malayan types, such as RhaphauluSy Hybo- 
cystis, and Rhiostoma [rather Siamese than Malayan]. The 
first province is Arakan and the southern part of Pegu with a 
very wet climate; the second Upper Burmah, which is very dry. 
The first has many species in common with the Khasi hills 
(Helix delibratay castra)y and possesses peculiar forms in H, plec- 
tostorntty CyclopTiorm aurantiacus arid speciosm ; the second has 
some forms in common with the plains of Cis-gangetic India, as 
Bulimus [Buliminus^ putuSy sp. n., nearly allied to B. cmnopictus 
(Bens.), and is particularly rich in species of the group Plecto- 
pylis [Corilla], 
The author defends (on pp, 101-104) the theory of specific 
centres. 
Mr. W. Theobald, in a paper, Observations on some Stric- 
tures by Mr. II. Blandford on my paper on the Distribution of 
Indian Gastropods,” advocates the view of the sporadic origin of 
species, chiefly by quotations from L. Agassiz. Ibid. pp. 60-63. 
Anthony, J. G. Descriptions of two new species of Monocon-- 
dylcea and description of a new exotic Melania^ Am. Journ. 
Conch, i. pp. 205-207, pi. 18. [Pegu.] 
4. JapaUy Indo-Chinay and Malayan Archipelago, 
Martens, E. v. Neue Landschnecken aus Ostasien. Monatsb. 
Ak. Wiss. Berl. 1865, pp. 51-55. 
Seventeen new species of Cyclostomaceay Heliceay and Auricu- 
laceOy from Japan, Siam, and the Indian Archipelago. 
. Ueber ostasiatische und neuhollandische Paludinen. 
Mai. Blatt. xii. pp. 144-*15L 
The author gives a list of the species known to him of Palu^ 
dina (s. str.,= Vivipara) from Japan, China, Siam, the Philip- 
pine Islands, Celebes, Borneo, Sumatra, Java, and Australia, 
and makes remarks on their synonymy, particularly with regard 
to the recent publications of Reeve and Von Erauenfbld. 
1865. [voL. II.] Q 
