OF CONOHOLOGY. 



2tt 



M. Traillii, Reeve, 



" simplex, " 



" attenuata, " 



" pyrulum, " 



" electrum " 



" annulata^ " 



" dens, " 



" serrata, Gaskoin, MS., 



" triplicata, " 



" compressa, Reeve, 



" Yolutiformis, " 



" obscura, " 



" paxillus, " 



" affinis, " 



" bullula, " 



" olivella^ " 



" corusca, " 



" bulbosa, " 



"■ semen, " 



" Jewettii^ Carpenter, MS., 



" ros, Reeve, 



" encaustica. Reeve, 



" rufula, Gaskoin, MS., 



" infans, Reeve, 



" epigrus, " 



" pisum, " 



" Bensoni, " 



Malacca. 



Australia. 



New South Wales. 



Island of St. Thomas. 



(?) 



(?) 



Borneo. 



West Indies, 



Philippines. 



(?) 



(?) 



(?) 



(?) 



Island of St. Thomas. 



Borneo. 



Australia. 



Singapore. 



Borneo. 



(?) 



St. Barbara, Cal. 



(?) 



Ceylon. 



Cape of Good Hope. 



Singapore. 



Mogadore, Morocco. 



Australia. 



Cape of Good Hope. 



Borneo. 



" lachryma, " 



The observations on the geographical distribution of the 

 genus are very interesting. 

 Unio. Plates 19—20. 



FRENCH. 



Melacologie de I'Algerie: by j. r. bourgtjignat. 



bth Part, April, 1864. Pp. 145—232, and plates 6—26, 

 contains : — 



Planorbis, 17 species, of which the following are new: — 

 PI. euchelius^ PI. agraulus, PL Numidicus, 



PI. euphseus, PI. diaphanellus^ PI. Raymondi. 



Physa, 7 species. Limn^a, 5 species. Ancylus, 11 spe- 

 cies. Brondelia, 2 species. Cyclostoma, 3 species. Acme, 

 (with a synonymy of the European species,) 2, which are 

 new : — 



A. Lallemanti, A. Letourneuxi. 



BiTHiNiA, 2 species. Hydrobia, 5 species. 



