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Umbilia armeniaca andreyi Shallow Dwarf Dwarf !!! Image Not Available
68.8 mm Augusta, WA 600,00 € |
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| Item | # 0003186815 |
| Family | Cypraeidae |
| Name | Umbilia armeniaca andreyi - Shallow Dwarf Dwarf !!! , Lorenz & Beals, 2013 |
| Size | 68.8 mm |
| Locality | Augusta, WA |
| Note | We have put considerable
effort into finding
armeniaca off the West
Australian Coast. This was
prompted by the mystique
of andreyi and clarksoni
and the limited number of
specimens available to
evaluate their forms and
form distribution. I now feel
I can form an opinion on
the subject and in my view
shell colour readily
separates the forms. I
considered there are three
basic armeniaca forms in
Western Australia being
andreyi on our lower west
coast. A form I have
chosen to refer to as
“verawestralis” on our
south coast between
Walpole in the west
through to Israelite Bay in
the east and type
armeniaca in the GAB. This
primary division into three
groups has been driven by
ice age isolation when sea
levels were up to 140
metres lower than they are
today. Andreyi typically
have milky tan dorsa and
porcelain white bases.
“Verawestralis” are very
colourful with rich peach
apricot bases and dark
highly speckled dorsa and
type armeniaca having the
well-known orange dorsum
and base. I consider
clarksoni to be a shallow
water variant that has
evolved with onshore
migration of “verawestralis”
like diprotodon in South
Australia. Recent inshore
migration of these forms
must have occurred as
both of their habitats were
100 metres above sea level
15,000 years ago.
Superimposed on this the
three forms have come
back in contact with its
adjoining form as sea
levels have risen to current
levels producing a mixing
and a hybrid population. In
the Augusta / Margaret
River area we see
significant variation in
colour and size with
specimens having traits of
both andreyi and
“verawestralis”. I refer to
shells with apricot peach
bases from this area as
Cypraea andreyi “hybrid” to
distinguish them from china
white based shells found at
the same location. Similarly
in the Western GAB we see
the form westralis. This
classic andreyi was
collected from 138 metres
of water southwest of
Augusta in January 2023.
Gemmy other than a re-glazed
and healed chip in
it's anterior aperture as
indicated by the green
arrow in the photos. Detailed
photos are available on
request. Shallow water
andreyi are noticeably
small than those collected
in depths of 200 to 250 metres. Fine+++ |
| Seller | amorashells (1173) - Register to view Feedback |
| Seller Country | AUSTRALIA |
| Website | 
Dealer Website |
| Shipment / PaymentShip. / Paym. | Available for registered users... |
| Curr. of this item |  EURO |
| Start Price | 600,00 € |
| Current Price | 600,00 € - no Bids - Auction closed -
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| Bid IncrementsBid Incr. |
| Range | Bid Increment |
| under 100 € | 1 € |
| from 100 to 200 € | 2 € |
| from 200 to 500 € | 5 € |
| from 500 to 1000 € | 10 € |
| over 1000 € | 25 € |
|
| End | 29-11-2023 > 21:30:00 |
| shellauction.net timeServer time | 04-12-2024 > 04:24:42 |
| Time left | ... |
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