RISSOIDA. 107 
var. depauperata. 
Rissoa cimex, var. depauperata, Monterosato, J. de C., 1877, Algiers. 
8 Algiers; coll. P. Joly, Esq. 
9. Alvania cancellata. 
Turbo cancellatus, DaCosta, Brit. Conch. 1778 ; =R. erenulata, Mich. 1832. 
6 Ajaccio and Algiers; coll. G. Nevill and P. Joly, Esqrs. 
14 England ; coll. G. Nevill, Esq. 
10. Alvania cimicoides. 
Rissoa cimicoides, Forbes, Report Brit. Ass. for 1843, Aigean Sea; fide 
Jeff. var. minima, Plymouth. 
2 England; ex c, G. Nevill, Esq. 
11. Alvania costata. 
Turbo costatus, J. Adams, Trans. Lin. Soc., III, 1800, England [not R. 
_ costata, Desm.]; fide Weinkauff = R. exigua, Mich, = R. carinata, Phil. ; 
sect. Manzonia, — 
16 Mediterranean; exc G. Nevill, Esq. [3, 13]. 
20 Algiers; coll. P. Joly, Esq. 
P var. [? dist. sp.] 
6 Loc.?; ex. c. Dr. F. Stoliczka [2, 2]. 
12. Alvania lactea. 
Rissoa lactea, Michaud, Deser. esp. Riss. 1832 ; = Turbo cancellatus, Lam, 
[not DaC.]; sect. Plagiostyla, fide Fischer. 
12 Mediterranean ; coll. Herr Schwartz von Mohrenstern, 
3 N. France; coll. Miss Beaufort, 
18. Alvania montagui. 
Rissoa montagui, Payrandeau, Cat. Moll. Corse, 1826. 
50 Algiers, &c., Mediterranean: coll. P, Joly and G. Nevill, Esqrs., and - 
Herr Schwartz von Mohrenstern, 
20 Loc. ?; exc. Dr. F. Stoliczka, 
