Sampled from shallow brackish environment. Salinity 14. I suspect the one in the center as abalone shell because it has hole. Please confirm. Thank you.
Hi Joshua,
These specimens are too worn to identify. Oyster shell fragments, perhaps? The one in the center with holes likely is not an abalone - the holes probably were made by a boring organism of some kind (a drill or sponge, maybe)
No. In my opinion it is not an abalone.
Abalones are gastropods with a flat spire and two to three whorls.
The holes of abalones are in the selenizone with a series of 8 to 38 holes near the anterior margin. Only a small number are generally open. The shell in the picture with two holes is an Ostrea.
Best regards
Hi Joshua,
I have a similar opinion. Just oyster shell fragments, probably with drill holes. Just for the next time... may I suggest that you take shots of dry samples; those seem to be too wet to see details when enlarging the image.
SALUTI
For what it is worth, I concur with the earlier opinions. 1) Not an abalone, drill holes on that shell, 2) the shells resemble Ostreidae but are quite worn. Further identification would be difficult.
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