1 62 Quarterly Journal of Conchology. 



Buliminus (Petrmis) brevior, (PI. II, fig. 5), rejectamenta of up- 

 per Araxes; B. (Chondrus) diffusus, {V\. II, fig. 6), rejectamenta 

 of the Araxes; Pupa ( Pupilla) superstructa, ( PI. II, fig. 7 ), Lai- 

 lasch, Government of Kutais ; P. (Pupilla) micula, ( not figured ), 

 Mahmoutli; Clausilia( Alinda)fusoriu>ti, (PI. II, fig, 8), Ssori, Go- 

 vernment of Kutais; C. (Marpessa) Raddei, Sievers, (PI. IV, fig. 3), 

 Mount Schambobel, 6000 feet high; Cyclostomus caspicus, Mouss., 

 (PI. IV, fig. 2), Leukoran; Vivipara ( =■ Paludina) CostcB, Neldreich, 

 (PI. IV, fig. i), Erzeroum. 



Fischer, Dr. P. — Faune malacologique de la vallee de Caute- 

 rets, suivie d'une etude sur la repartition des Mollusques dans les 

 Pyrenees ( Malacological fauna of the Valley ofCauterets, and study 

 of the distribution of the MoUusca in the Pyrenees).- — pp. 51 — 84. 



In the first part of this article Dr. Fischer gives a list of the spe- 

 cies inhabiting the Valley of Cauterets ; amongst the most remark- 

 able being Vitrma pyreftaica, Fer. ; Helix DesmoulinsiYdcawt^; H. 

 Carascalej2sis, Yhr.; Pupa Pyroiceaiia, Mich.; P. ringens, Mich.; P. 

 Bigorriensis, Charp., ( hardly more than a variety of jP. megacheilos ); 

 Limticea limosa, L., var. glacialis, Dupuy, found in the Lac de Gaube 

 at an elevation of 1788 metres; Pomatias Partioti, Moq.-Tandon; 

 Pisidiiwi Casertanum, Poli, var. thermale, Dup. He then distributes 

 the species of the Pyrenees generally according to zones of altitude, 

 characterizing each zone by a species oi Helix. It may be remarked 

 that Helix constricta, one of the most special Pyrenaean shells does 

 not extend above 1000 metres (zone of H. carthusiana). The 

 highest zone, that of H carascalc/isis, from 2000 to 2500 metres and 

 even higher, molluscan life appearing not to cease completely much 

 before 2900 metres, only contains two species, H carascalensis zxid 

 Limneea limosa, var. glacialis. Dr. Fischer gives three, but the 

 third, H uubigena, is only a variety of H. carascalensis. 



The author then gives a comparative table of the Alpine species^ 

 and proceeds to discuss the general distribution of Mollusca in the 

 Palsearctic province, illustrating his views by a map. He admits 

 five regions : — 

 I. The Northern or Germanic — consisting of the basins of the 



