104 RISSOIDA. 
21. Rissoa algeriana. 
Rissoa Algeriana, Monterosato, J. de C., 1877, Algiers, pl. ITI, fig. 5, “ coll. 
Joly.” 
20 Algiers [typical]; coll. P. Joly, Esq. 
var. rufula. 
R. Algeriana, var. rufula, Monterosato, 1, c. 
9 Algiers; coll. Mons. Joly. 
22. Rissoa pusilla. 
Rissoa pusilla, Philippi, Enum. Moll. Sicil. 1836 ; fide Schwartz, R. dolium, 
Nyst, 1848. 
10 Algiers; coll, P. Joly, Esq. 
23, Rissoa desmaresti. 
Rissoa desmaresti, dudouin, Descr. de ? Egy p'e, pl. IIL, 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, Linneus, Syst. Nat. Ed, XII, 1757 3 sect. Zippora. 
80 Algiers, &c., Mediterranean ; coll. Herr Schwartz von Mohrenstern, 
and P, Joly, F. Stoliczka, and G. Nevill, Esqrs. 
25. Rissoa (?) rudis. 
Rissoa rudis, Phillippi, Enum, Moll. Sicil. I, 1836. 
50 Algiers; coll. P. Joly, Esq. 
Not included in Rissoa [restricted] by Schwartz, but con- 
sidered an Alvania ? 
