1865. ] AND FLUVIATILE MOLLUSCA OF PALESTINE, 535 
is the prevailing type in the north, distinguished by its depressed 
spire and broad flattened keel. About Nazareth it gives way to 
the second variety, rounder, with the keel more compressed, but 
still the spire depressed. Specimens about Jerusalem and Carmel 
partake of the character of the first variety, with elevated spire ; 
while at Hebron, the southern limit we observed for this shell, the 
northern form crassocarina reappears unchanged in the slightest 
particulars. 
45. HEeLix CHSAREANA, Parr. 
Abundant in the plain of Sharon and about the Sea of Galilee. 
The specimens from Gennesaret are much larger and more richly 
marked than those from Judea. 
46. HELrx sprripLana, Oliv. (H. guttata, Bourg.) 
Generally distributed, but not numerous—in the higher grounds 
of Southern Palestine, and not found in the same localities as the 
preceding. 
47. HELIX MASAD&, N. sp. 
T. umbilicata, depressa, solida, albida, transversim regulariter et 
profunde striata, et superne et infra; zonis evanescentibus 
Juscis albo interruptis aliquando ornata ; anfract. 5 superiores 
carinati, plani, sutura protracta, ultimus antice valde deflexus ; 
apertura obliqua, rotundata ; perist. reflexo, expanso, sepe um- 
bilicum celante. 
Diam. maj. 30, min. 25, alt. 14 mill. 
Apert. diam. maj. 13, min. 11 mill. 
Hab. Sebbeh (ant. Masada), and the most barren and sterile moun- 
tains from there to Jebel Usdum, the salt-mountain. The deep 
and regular striation of this shell distinguishes it at once from H. spz- 
riplana, for a small variety of which (such as that which Conrad has 
described under the name H. lithophaga) it might otherwise be mis- 
taken. 
48. Hewix aspersa, Mill. 
Very common in the gardens of Tyre, Sidon, Beyrout, Jaffa, and 
all places on the coast. We did not meet with it inland. It reaches 
a very large size—quite equal to the specimens from Algeria, and far 
surpassing those of the Greek islands. This as well as all the follow-. 
ing species and H. cesareana are collected and sold in the markets 
for food. 
49. Hewix cavata, Mouss. 
Common in the interior; not plentiful near the coast. 
50. Hexix pRAsInATA, Roth. 
We did not find this species ourselves ; but I possess three speci- 
mens given me at Jerusalem by my lamented friend, its discoverer, 
Dr. Roth. ; 
