RISSOIM. 61 



Seems to me to belong to an altogether different group from 

 the European species. 



Subgenus SPEKIA, Bourguignat. 

 Descr. esp. Moll. 1879, type Lithoglyphus zonatus, Woodward. 



9. Lith.oglyph.us (Spekia) zonatus. 



Lithoglyphus zonatus, Woodward, P. Zool. 8. 1859, Lake Nyanza. 

 1 Lake Tanganyika j ex Mr. R. Damon. 



Subgenus JULLIENIA, Crosse and Fischer. 

 J. de C. XXIV, 1876, type Melaniaflava, Deshayes, Cambodia. 

 Not represented in the Museum. 



Subgenus LAGUNOPSIS, Deshayes and Jullien. 

 Nouv.Arch. Mus. X, 1874, typeL.Jullieni, Deshayes,Camlodia [as Genus']. 



Lithoglyphus martabanensis, Theobald, may possibly prove to 

 belong to this group, but I think this will prove to be not the 

 case. 



Not represented in the Museum. 



Genus EMMERICIA, Brumati. 



Foss. Moll. Dalmatien, 1874, type Pal. patula, Brum. ; genus of subfam. 

 Emmericince,fide Clessin, 1880. 



1. Emmericia patula. 



Paludina patula, Brumati, Cat. Conch. Monfalcone, 1838, and Kuster, 

 Conch.- Cab. II, pi. 8, fig. 1522. 



var. expansilabris. 



Conch.-Cab. II, 1852, pi. 8, fig. 18-22, as Pal. patula, Srum. = Pal. 

 expansilabris, Miihlfeld, in Hit. 



2 Obbrowazzo, Dalmatia; ex "Linnsea." 



M. Bourguignat in his Monograph of the genus, p. 89, con- 

 siders this form doubtless correctly as a distinct species. 



