RISSOIDiB. 61 



Seems to me to belong to an altogether different group from 

 tlie European species. 



Subgenus SPEKIA, Bourguignat. 

 Descr. esp. Moll. 1879, type LithoglypTius zonatus, Woodtvard. 



9. Lithoglyphas (Spekia) zonatus. 



Lithoglyplius zonatus, Woodioard, P. Zool. 8~ 1859, Lake Nyanza. 

 1 Lake Tanganyika ; ex Mr. R, Damon. 



Subgenus JULLIENIA, Crosse and Fisclier. 

 J. de C. XXIV, 1876, type Melaniajiavia, DesJiayes, Cambodia. 

 Not represented in the Museum. 



Subgenus LAGUNOPSIS, Desbajes and Jullien. 



Nouv. Arch. Mus. X, 1874, type L. Jullieni, Deshayes,Camhodia [as Genus']. 



LitJioglyplius martahanensis, 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. Balmatien, 1874, type Pal. patula, Brum. ; genus of suhfam. 

 EmmericmcB, fide Clessin, 1880. 



1. Emmericia patula. 



Paludina patula, Brumati, Cat. Conch. Monfalcone, 1838, and K'dster 

 Conch.-Cab. II, pi. 8, fig. 15—22. 



var. expansilabris. 



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

 expansilabris, Miihlfeld, in litt, 



2 Obbrowazzo, Dalmatia; ex "Lmnsea." 



M. Bourguignat in his Monograph of the genus, p. 80, con= 

 siders this form — doubtless correctly — as a distinct species. 



