What is the star system?
The star system calculates the number of pieces that were handled by Conchology, Inc. in the last 21 years:
| 0 – 5 pieces | 6 stars |
|
| 6 – 10 pieces | 5 stars |
|
| 11 - 25 pieces | 4 stars | |
| 26 - 75 pieces | 3 stars | |
| 76 - 150 pieces | 2 stars | |
| > 150 pieces | 1 star | |
We want to point out that the star system is only very reliable for PHILIPPINE shells only, as we handle very few foreign shells in general. As time goes, the system will become more and more performant.
WMSDB - Worldwide Mollusc Species DataBase
22
POLYGYRIDAE
Taxon Tree:
GASTROPODA [Class]
HETEROBRANCHIA [Subclass]
STYLOMMATOPHORA [Order]
POLYGYROIDEA [SuperFamily]
POLYGYRIDAE [Family]
[Genus]
[Species]
Genus
: Webbhelix (J.H. Ferriss, 1907)
Genus species
:
Webbhelix chadwicki
Author
:
(J.H. Ferriss, 1907)
Locality
:
Kansas
Size
:
no data
ID
:
4461700000
Genus species
:
Webbhelix multilineata
Author
:
(T. Say, 1821)
Locality
:
Minnesota
Size
:
no data
ID
:
4461700000
Genus
: Xolotrema A.E.J. Férussac, 1821
Genus species
:
Xolotrema carolinensis
Author
:
H.C. Lea, 1834
Locality
:
Tennessee, Marion County
Size
:
16 mm
ID
:
4461450030
Genus species
:
Xolotrema caroliniense
Author
:
H.C. Lea, 1834
Locality
:
Tennessee, Marion County
Size
:
16 mm
ID
:
4461450030
Genus species
:
Xolotrema fosteri
Author
:
F.C. Baker, 1921
Locality
:
Maryland, USA
Size
:
16 mm
ID
:
4461450030
Genus species
:
Xolotrema notata
Author
:
A.E.J. Férussac, 1821
Locality
:
USA, Ohio
Size
:
18 mm
ID
:
4461450030
Genus species
:
Xolotrema obstrictum
Author
:
T. Say, 1821
Locality
:
Tennessee
Size
:
20 mm
ID
:
4461450030
Genus species
:
Xolotrema occidentale
Author
:
H.A. Pilsbry & J.H. Ferriss, 1907
Locality
:
Arkansas
Size
:
no data
ID
:
4461450030
