Philonesia pyramidalis Preece

Pyramid-shaped Philonesia Snail (Philonesia pyramidalis 

This species was described in 1998.  

The Pyramid-shaped Philonesia Snail was endemic to Henderson Island, Pitcairn Islands, and is known from only three adult subfossil specimens and some apical fragments.  

The shells on average reached sizes of about 0,9 cm.  

The three known specimens differ in the color banding; thus, the Pyramid-shaped Philonesia Snail is believed to have possibly been polymorphic like some of its congeners.  [1]  



[1] R. C. Preece: Impact of early Polynesian occupation on the land snail fauna of Henderson Island, Pitcairn group (South Pacific). Philosophical Transactions of the Royal Society of London B 353: 347-368. 1998  


edited: 25.10.2017