104 RISSOIDiE. 



21. Rissoa algeriana. 



Kissoa Algeriana, Monterosato, J. de C, 1877, Algiers, pi. Ill, fifj. 5, " eoU. 

 Jolt/." 



20 Algiers [typical] ; coll. P. Joly, Esq. 



var. rufula. 

 R. Algeriana, var. rufula, Monterosato, I. c. 

 9 Algiers ; coll. Mons. Joly. 



22. Rissoa pusilla. 



Rissoa pusilla, Fhilippi, JEnum. Moll. Sicil. 1836 ; fide Schwartz, B. dolium, 

 Nyst, 1843. 



10 Algiers ; coll. P. Joly, Esq. 



23. Eissoa desmaresti. 



Eissoa desmaresti, Audouin, Descr. de VEgxp'e,pl. Ill, fig. 21, 1826. 



The outline figure of type, natural size, measures about 3 

 mil. 



var. minima. 

 1 Annesley Bay ; coll. W. T. Blanford, Esq. 

 Long. 1 mil. 



24. Rissoa auriscalpium. 



Turbo auriscalpium, Linnceus, Syst. Nat. Ed, XII, 1757 ; sect. Zippora, 



30 Algiers, &c., Mediterranean ; coll. Herr Schwartz von Mobrenstern, 

 and P. Joly, F. Stoliczka, and G. Nevill, Esqrs. 



25. Rissoa (?) rudis. 



Rissoa rudis, Fhillippi, JEnum. Moll. Sicil. I, 1836. 



50 Algiers ; coll. P. Joly, Esq. 



Not included in Bissoa [restricted] bj Schwartz, but con- 

 sidered an Alvania ? 



