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Umbilia armeniaca andreyi verawestralis Hybid

65.7 mm Augusta, WA 250,00 €

Item

# 0003462465

Family

Cypraeidae

Name

Umbilia armeniaca andreyi - verawestralis Hybid , Lorenz & Beals, 2013

Size

65.7 mm

Locality

Augusta, WA

Note

As has been documented in other item listings, I have proposed a new form of armeniaca being Cypraea armeniaca "verawestralis". This name has no taxonomic standing but is the name I have elected to refer different shells we have been finding in very limited numbers on our south coast between Walpole through to the east of Esperance. These shells differ significantly in colour and shape from both andreyi and GAB armeniaca. In the area off the very southwest corner of Western Australia I believe these shells have merged with classic andreyi as sea levels have risen during the current inter-glacial period to produce a hybrid population. Armeniaca collected off Augusta fall into two very distinct colour forms. While all shells are very heavy and fit as andreyi on mass ratio, they have either china white bases or rich pink orange bases. In addition shells are often dark in colour with dense tan burgundy spots. Both of these traits are not present in west coast andreyi but are features of the "verawestralis" form. This specimen was ROV collected from 128 metres of water south south east of Augusta in August 2018. It is a crabbed shell found crawling on sand in a sponge garden in 138 metres of water. As will all specimens we have found in this depth it is significantly smaller that specimens we find in water deeper that 200 metres. The shell can be seen to be dead collected as it has small tube worm is attached to the shells interior. Fine+.

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AUSTRALIA

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