MOLLUSCA. 
161 
MOLLUSCA 
BY 
Eduard von Martens, M.D., C.M.Z.S. 
A. The General Subject. 
1. General Works in Progress. 
Reeve, L. Concliologia Iconica. Nos. 246-255. 
Parts 246-253 are dated 1865, 254 and 255 1866 ; tliey con- 
tain the continuation of the genera Unio, Ovulum, Prato j 
further Carinariay Tornatella, Pyramidella, Pulima, Cerithium. 
Sowerby, G. B. Thesaurus Conchylioruin. Part xxiv. London, 
1866, 8vo. 
This part completes vol. iii., and contains tlie rest of the Pu* 
pinidaiy the genera Carinariay DonaXy TyphiSy Trichotropis y a sup- 
plement to Cerithiuniy Eburnay and Conus y and a completely 
revised monograph of Helicina. 
Pfeiffer, L., and Dunker, W. Novitates Conchologicai. 
Cassel, Th. Fischer, 4to. 
The first section contains extra-marine shells, by L. Pfeiffer. 
The first volume, commenced in 1854, has been finished — the parts 
containing plates 61-63 having been issued in 1864, 64-66 in 
1865, and 67-72 in 1866. A new volume has been commenced 
in this year (1867). The second section contains sea-shells, by 
W, Dunker ; the date is unfortunately not marked either on the 
wrappers of the parts or on the sheets. As far as we could make 
out, part 7, containing plates 19-21, was published in the 
year 1864 \ parts 8-9, containing plates 22-27 y in the year 1865 ; 
part 10, plates 28-30, in 1866 ; and the author is at present en- 
gaged in the publication of another part. 
The work is, in fact, a continuation of Philippics well-known 
^leones Conchyliorum ^ or ^Abbildungen und Beschreibungeii 
neuer oder wenig bekannter Conchylien,^ destined to give^ 
exact figures of either new or not yet well-figured shells. The 
plates may be said (with very few exceptions in some of the 
former parts) to be very well executed. 
1866, [voL. III.] 
M 
