LAND AND FRESH-WATER MOLLUSCA. 197 
H. pyramidata, Drap.—Very common. A variety found by 
me on Filfla, an islet on the south side of Malta, has much larger 
shells than the ordinary Maltese type. 
H. Spratti, Pfeiffer (H. gaulitana, Marno; H. solaroides, Gulia). 
—This species of Helix was first found by Admiral Spratt at 
Marsa-el-Farn, in Gozo, in 1848. It is not uncommon along the 
borders of the sea, at the spot where it was first discovered in 
Gozo. 
H. meda, Porro.—This snail is very common on shrubs in 
the Floriana Gardens, near Valetta. As it is not found anywhere 
else in the island, the species has doubtless been imported along 
with foreign plants. 
H. trochoides, var., Poiret = conica, Drap.—Included by Benoit 
and Gulia in their Catalogue of Maltese Mollusca, as found at 
Melleha and Puales, and noted as rare. The term “local” should 
be applied to this species, for though I have only found it on the 
sea-board at the head of Melleha Bay, it is there extremely 
abundant. During the heat of summer the animal attaches itself 
by adhesion of the epiphragm to plants and stones, and is to be 
found clustering in hundreds on the stems of Ononis ramosissima, 
Desf., and to the stalks of Festuea elatior, Linn. The specimens 
are not of the typical form of the species, and possibly may 
constitute a distinct variety. 
H. striata, Drap.— A very common species in uncultivated 
spots. 
H. candidissima, Drap.—This is a very common species along 
the sea-board from St. George’s Bay to Marfra, in the island of 
Malta; it is equally so on the islands of Comino and Filfla. 
H. melitensis, Férrusac.— This handsome species is spread 
over the island of Malta. I have very often found it on the 
branches of the carob-tree (Ceratonia siliqua), where it seeks 
refuge from the intense heat of summer. 
H. vermiculata, Linn.—One of the most abundant land-shells. 
Extremely variable in colour. 
H. pisana, Miiller.—Most abundant. 
H. cespitum, Miller. — Common in gardens and cultivated 
fields. 
H. conspurcata, Drap.—Common. 
H. lenticula, Fér. — Not uncommon in shady and damp 
places. 
