LAND AND FRESH-WATER MOLLUSGA. 199 
Genus ANcyLUus. 
Ancylus fluviatilis, Drap.—Found in streams, aqueducts and 
fountains. 
Genus LIMNeEus. 
L. (perhaps a variety of L. truncatula).— Found in streams and 
aqueducts. 
Genus Puysa. 
P. melitensis, Benoit.—Abundant in a reservoir in Floriana 
Gardens. 
Genus ACICULA. 
A. acicula, Miiller.—Not a common species in Malta; it is 
found in small numbers on the old lne of fortification near 
Corradino, Valetta. 
Genus AZECA. 
A. follicula, Gmel.— Common in damp or shady places. 
Genus Buuimus. 
B. decollatus, Linn.—Abundant throughout the islands. 
B. acutus, Linn.— Abundant. 
B. pupa, Linn.— Very common. 
Genus Pupa. 
P. granum, Drap.—Common in Malta and Gozo. 
Genus ALEXIA. 
A. myosotis, Drap.—Common in damp and uncultivated spots 
near the sea. 
Genus MariInu.a. 
M. forminii, Pay—It is with some hesitation that I include 
this species amongst the land and fresh-water species. I have 
found the shell with the animal on the sea-shore, but under 
circumstances that led me to believe that it had been thrown 
up from the sea by the waves. 
