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
NERRHENIDAE
Genus
: Hessonia Heidelberger, 2001 †
Hessonia germana
Heidelberger, 2001 †
Hessonia piligera
(C.L.F. von Sandberger & C.L.F. von Sandberger, 1855 †)
Hessonia priscus
(R.P. Whitfield, 1893 †)
Genus
: Nerrhena (Kirchner, 1915 †)
Nerrhena aequistriata
(Kirchner, 1915 †)
Nerrhena nonecincta
Heidelberger & Koch, 2005 †
Nerrhena reticulata
Heidelberger & K. Bandel, 1999 †