Strigilla, Tellins: Family Tellindae
For now I've included Strigilla, a subfamily of the Tellin Family, with the Tellin Family
Some tellins are rare on S. Hutchinson Island beaches. The Alternative Tellin (below) is fairly rare. The most common types of Tellin are the Short and Elongated Macomas.
Alternate Tellin (both valves) from S. Hutchinson Island 2020
I've started collecting a sub-species which are Strigilla (Strigilla carnaria, Linnaeus, 1758) a small rose or pink shell. It's similar to the Rose Petal Tellin
Rose Strigilla or False Rose Strigilla (Strigilla carnaria)
Harry Lee: It's quite possible you have some Strigilla mirabilis (Linnaejus, 1758) mixed in. The two species are similar, differing, among other features, in the anterior extent of the pallial sinus. See the plate at <https://www.biodiversitylibrary.org/page/41113805>. It reaches the adductor muscle scar in S. p. these internal features are fairly simple to suss out in well-preserved shells. I've lifted the following from Boss's description of the latter, to which the treatment by MollscaBase provided a link:
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Tellinidae
From Wikipedia, the free encyclopedia
Scientific classification e
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Heterodonta
Order: Cardiida
Superfamily: Tellinoidea
Family: Tellinidae
Blainville, 1814
Genera
The Tellinidae are a family of marine bivalve molluscs of the order Cardiida. Commonly known as tellins or tellens, they live fairly deep in soft sediments in shallow seas and respire using long siphons that reach up to the surface of the sediment.[1]
Characteristics
Tellinids have rounded or oval, elongated shells, much flattened. The two valves are connected by a large external ligament. The two separate siphons are exceptionally long, sometimes several times the length of the shell. These siphons have a characteristic cruciform muscle at their base.[2]
Selected genera
Abranda Iredale, 1924
Acorylus Olsson & Harbison, 1953
Aenigmotellina Matsukuma, 1989
Agnomyax Stewart, 1930
Angulus Megerle von Mühlfeld, 1811
Arcopagia Leach in Brown, 1827
Bathytellina Kuroda & Habe, 1958
Cadella Dall, Bartsch & Rehder, 1938
Cyclotellina Wenz, 1923
Cymatoica Dall, 1889
Elliptotellina Cossmann, 1886
Eurytellina P. Fischer, 1887
Florimetis Olsson & Harbison, 1953
Gastrana Schumacher, 1817
Hanleyanus M. Huber, Langleit & Kreipl, 2015
Herouvalia Cossmann, 1892
Laciolina Iredale, 1937
Leporimetis Iredale, 1930
Limecola T. Brown, 1844
Loxoglypta Dall, Bartsch & Rehder, 1938
Macoma Leach, 1819
Macomona Finlay, 1927
Merisca Dall, 1900
Moerella P. Fischer, 1887
Nitidotellina Scarlato, 1961
Obtellina Iredale, 1929
Omala Schumacher, 1817
Peronaea Poli, 1791
Pharaonella Lamy, 1918
Phyllodina Dall, 1900
Pristipagia Iredale, 1936
Psammotreta Dall, 1900
Pseudarcopagia Bertin, 1878
Punipagia Iredale, 1930
Quadrans Bertin, 1878
Quidnipagus (Iredale, 1929)
Scissula Dall, 1900
Scissulina Dall, 1924
Semelangulus Iredale, 1924
Serratina Pallary, 1922
Strigilla Turton, 1822
Tellidora Mörch, 1856
Tellina Linnaeus, 1758
Tellinangulus Thiele, 1934
Tellinella Mörch, 1853
Tellinota Iredale, 1936
Temnoconcha Dall, 1921
References
Bouchet, P. (2012). Tellinidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=235 on 2012-07-04
Barrett, J. H. and C. M. Yonge, 1958. Collins Pocket Guide to the Sea Shore. P. 160. Collins, London
Powell A W B, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
Glen Pownall, New Zealand Shells and Shellfish, Seven Seas Publishing Pty Ltd, Wellington, New Zealand 1979 ISBN 0-85467-054-8