MOLLUSOA 
BY 
Eduard von Martens, M.D., P.M.Z.S. 
A. Works in progress. 
THoschel, E. H. Das Gebiss der Schnecben zur Begriindung 
einer naturlichen Classification. Vol. ii. part 2. Berlin, 
1868 (December, 1867), 4to, pp. 49-96, pis. v-viii. (See 
^Zool. Eecord,^ ii. p. 241.) 
Contains general observations on Bhachiglossay and descrip- 
tions of 95 species of this division \ the families and genera are 
arranged according to the results of the author’s researches. We 
mention here only the families treated of in this part, and shall 
refer to the genera in the special part : — Volutacea, MargineU 
lacea, Fasciolariacea, Mitracea^ Fusacea (including Bucctnina, 
Neptunina, Cassidulina, Photina, Vasina y^txAImhricarina), finally 
Nassacea. 
Reeve, L. Conchologia Iconica, continued by Sowerby. Nos. 
256-265. 
Parts 256-261 are dated 1866, 262 & 263 1867 ; they contain 
the genera Unio (continuation), Pyrazus, Lampaniaj Cerithidea, 
Tympanotonos , Leiostraca, Tellina, Pleiodon, Anodon. 
Sowerby, G. B. Thesaurus Conchyliorum. 
We have given in the last volume of the ^Record’ (p. 161) 
the contents not only of part xxiv., but also of part xxv., which 
concludes the third volume. 
Pfeiffer, L., and Dunker, W. Novitates Conchologicse. (See 
^Zool. Record,’ hi. p. 161.) 
Section i. Land-Conchylien, by Pfeiffer. Parts 26-28, con- 
taining pp. 313-368, and plates 76-84. 
Section ii. Meeres-Conchylien, by Dunker. Parts 11 and 12, 
containing pp. 91-106, and pis. 31-36. 
Bourguignat, J. R. Mollusques nouveaux, litigieux ou peu 
connus. Fascicles 6-8. (See ^ Zool. Record,’ ii. p. 212.) 
Parts 6 artd 7 with pp. 173-222, pis. 29-34; part 8 with 
pp. 223-258, pis. 35-38. 
Romer, Ed. Monographie der Molluskengattung Venus. Parts 
.5-11. 
1867. [vol. IV.] 2 K 
