76 CATALOGUE OF SHELLS. 
17. H. Lactea, Muller. Mr. Malherbe. 
a. France. 
6. Algiers. 
tS, 8. Mr. Malherbe. 
Oran. 
Intermediate between H. Lactea and H. Hieroglyphicula. 
19. H,. Arabica. Mr. Malherbe. 
Oran. North Africa. 
20. H. Hieroglyphicula Michaud. Mr. Malherbe. 
Oran. 
This shell has much the same relation to H. Arabica that H 
(No 18) bears to H. Lactea, it being more depressed and more distinct- 
ly and conspicuously banded. 
21. H. Brasiliana. Von de Bosch. 
Brazil. 
22. H. Albolabris Say. 
North America. 
23. H. Candidissima Drap. Mr. Malherbe. 
a. Oran. 
b .France. Messrs. Malherbe and 
Von de Bosch. 
24, H. Vermiculata. Muller. 
France. 
25. H. Zaleta Say. 
Massachusets. 
26. H. Fruticum, Muller. Mr. Malherbe. 
France. 
