Hey /an/,My mom found these shells on the beach at Cape Kidnappers on the northern island in New Zealand.There where many to be found on this beach, however they all have these scrape markings on them.Does anybody know what caused this? And perhaps somebody knows the name of this mollusc?Thanks in advance :)
>>5081321abalonesomething is feeding on the inside of the shells, like another snail, for the calcium content
>>5081321the "scrapes" are muscle attachment scars. The rough surface gives the muscle a stronger attachment point and because it's covered in muscle it grows less nacre.
>>5081360>>5081448 So which one of you has the correct answer?
>>5081517It’s all a load abalone
