Native SpeciesDog whelk

Nucella lapillus
NOT FOUND by manyeyes
Cape Elizabeth
ID Confirmed
Quality checked by manyeyes herself
Peer reviewed by
Field Notes
The red winged black birds are back and trilling away from the trees. Time for a spring beach walk. The seaweed was amazing - so many different kids and colors - but I didn't pick any of it up. Instead I grabbed this super-sized shell and crab shell. I would appreciate some help with the IDs. Apologies for no site photo. Camera was not in pocket so I trucked these home to take photos.
Supporting Evidence
Photo of my evidence.
This shell has the same notch in the aperture as a dog whelk, but it is so so much bigger than the dog whelks I have seen in tide pools. What kind of carnivorous beast is this? Nucella of a larger sort?
Photo of my evidence.
Here's a look at the spiral shape and ridges.
Photo of my evidence.
Dog whelks are usually just an inch to an inch and a quarter long. This one is too big to be a dog whelk.
Species Observation: Species Looked For
Did you find it?: 
I think I did not find it
Scientific name:
Nucella lapillus
Common name:
Dog whelk
Sampling method: 
Just looking around
Photo of our sampling method.
Place Studied
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Map this species
N 43.564457 °
W -70.223321 °
Observation Site Information
A photo of our study site.
Coastal - Beach or dune
Trip Information
Crescent sandy area between streams
Trip date: 
Fri, 2015-03-27 16:54
Town or city: 
Cape Elizabeth
Type of investigation: 
Species Survey
Time of low tide: 


Definitely too big to be a dog whelk! It could be a Buccinum undatum, also known as either a waved or common whelk!