Cymatium tigrinum Broderip, 1833 175mm Huatulco, Oaxaca, Mexico 40' in among rocks - I have yet to see a specimen of this shell with a mature lip
Cymatium tigrinum Broderip, 1833 168mm Huatulco, Oaxaca, Mexico 50' at base of rock cliff
Cymatium gibbosum adairensis Dall, 1910 42-53mm Cholla Bay, Sonora, Mexico Buried in orange sponge at extreme low tide