Loading 3D model
This is a shell of the siphon whelk Penion sulcatus collected from Golden Bay. Penion is a genus of predator-scavenger true whelks (Buccinidae); members of the genus can be very large – reaching 30 cm in length, and there is also a rich fossil record for the genus in New Zealand. Penion species frequently inhabit significant depths (up to at least 2 km), although P. sulcatus is unusual as it can be found within the intertidal zone. P. sulcatus also exhibits huge variation in its shell size, shape and colouration but this does not appear to reflect genetic variety (description by Felix Vaux, http://www.massey.ac.nz/~strewick/Felix.htm).