~~, 
96 HYALINIA RADIATULA PETRONELLA. 
This variety or geographical race, 
which, though showing certain slight 
differences in the shape of the sheil 
and in its stronger spiral striation, 
may be regarded as the alpine form of 
H. radiatula, was dedicated by its 
author to the saint who, according to 
the legends of the Upper Valais, guards 
travellers over the Alpine passes. 
It is distributed over the Alps and 
other elevated regions, but becomes 
more generally an inhabitant of the 
lower ground as the locality inhabited 
becomes more remote from the assumed 
evolutionary area, where it is sporadic 
Fic. 137.—Surface sculpture of the body-whorl 
of Hyalinia radiatula petronella Charp., from 
Norway, Miss B. Esmark x 30 (after micro-photo. 
by Mr. J. W. Jackson). 
and uncommon. CONTINENTAL DISTRIBUTION. 
Germany—Recorded by Reinhardt for a few places in the Spree Valley, on 
Steinetz See at Tasdorf; Oder Valley at Stendel near Passow, etec., and Borcher- 
ding records it for Detmold. It is also reported from Kobyllno, Landeck, Liebnitz, 
ete., in Silesia; as rare at Erlach in Lower Franconia; from Kreuzberg in Lower 
Bavaria, and the Harz Mountains in Hanover. 
France—Dumont and Mortillet record it as living above the forest line and up 
to the limit of shrubs at an altitude of over 6,500 feet in Val de Peisey in Savoy. 
The sub-var. dumontiana is found at Aix les Bains and in the alluvium of the lake 
near Cornin in Savoy, and is rare at Grande Chartreuse in the Isere. 
Italy—It is found in Piedmont at Presolana, at an elevation of over 7,000 feet, 
while Dumont and Mortillet cite as a loeality Alleé-blanche near the Chalets, and 
opposite the Glacier du Miage at more than 6,500 feet high. The shells recorded 
by Prof. Lessona as H. dumontiana from alluvium of Lago del M. Cenisio, at an 
elevation of about 5,000 feet in Valle di Dora Riparia, Piedmont, are described as 
new by Signor Pollonera under the name of H. petronella var. cenisia. 
Switzerland—Charpentier records this form from the Val de Bagnes in Central 
Valais, and Dr. Gwyn Jeffreys from the Gorner Grat, Zermatt. In the Grisons, Rev. 
S. Spencer Pearce found it commonly at Casaccia in the Bergel Valley and Maloja, 
and Am Stein in the Munsterthal ; and Blum reports it from Canton Glarus. 
Austro-Hungary—Recorded from the Tyrol by Gredler; Galicia by Jachno ; 
Styria by Westerlund, and from the Tyrol. 
Spain—Polita petronella recorded from Seville in Andalusia by Kobelt ; and the 
var. yacetanica from Barcelona by Bourguignat. 
Norway—Very common throughout the country, extending to Tollaa 66° 50’, 
and Lofoten 69°, in Nordland, and up to 70° at Varanger Fjord in East Finmark. 
Sweden— Diffused over the whole of the country, being cited by Wallenberg for 
Jockmock, and as frequent at Qvickjock, 67° north lat. in Lulea Lappmark ; it is 
also recorded for provinces of Herjedalen, Vesternorrlands, Gefleborg, Kopparbergs, 
Warmland, Westmanland, Stockholm, Orebro, Ostergotland, Westergotland, 
Smaland, Gotesborg, Bohusland, Skane, and the Island of Gothland. 
Russia— Recorded as found in Olonetz, Perm, Kursk, the Kola peninsula, and 
the shores of the White Sea in the government of Archangel, as well as throughout 
Finland. It is also recorded from Mamudly in Kutais ; the var. swbnitidesa has 
been found at Gortschka in Erivan ; Kasbek, Kobi, Tabizhuri, and Suram in the 
government of Tiflis ; and Russian Armenia; and the var. jacetanica at Tbatani. 
In Siberia, according to Dr. Westerlund, it was recorded by Schrenk under the 
erroneous name of H. pura from the springs of Uderei and banks of the Muroseh- 
naja in the Yenissei region ; from Sludjanka in the Baikal region; and from the 
Stanovoi Mountains. lt occurs also on the Yenissei at Pupkowskij, lat. 64° 42’; 
Nischnij Inbatsk, 63° 50’; Surgutskoj, 62° 50’; and Krasnojarsk, 56°. It was also 
found by Dr. Theel’s expedition at Ansifforowa and T’shulkowa; and is tabulated 
for the Altai region, the basin of the Amour, and Kamtschatka. 
Persia—The var. subnitidosa is reeorded by Mousson from the shores of the 
Caspian Sea. 
