This consists of the genus Spondylus or spiny oyters!
Spondylidae

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Spondylus americanus 5 3/8” or 134.35mm Red Oil Rig #700020
A Fine Reddish/Purple Spondylus americanus 5 3/8” or 134.35mm. (umbo to longest spine) Hermann, 1781 Collected by Diver at between...
$95.00 Sale: $80.75

Max: 1

Spondylus foliaceus 3 5/8” or 91.60mm."Superb"#700025
An F++/NG Spondylus foliaceus 3 5/8” or 91.60mm. Schribers, 1793-Superb digitations. Collected by local diver at 20-30 meters in the...
$14.00 Sale: $11.90

Max: 1

Spondylus imperialis 105.40mm. "Lovely Pinkish"#700024
An F+/F++Spondylus imperialis 105.40mm. Chenu,1843-Pinkish Hue on spines Collected “Live Taken” in net at 15 meters of water in June 2015...
$10.00 Sale: $8.50

Max: 1

Spondylus imperialis 3 3/8” or 89.05mm. "Samar"#700030
An F+ Spondylus imperialis 3 3/8” or 89.05mm. Chenu, 1843 Pinkish Body Hue on spines. Collected “Live Taken” in net at 15 meters of...
$9.50 Sale: $8.08

Max: 1

Spondylus regius 176.99mm. "Superb Orange Monster"#700011
An F+/ very near f F++ Spondylus regius 176.99mm. "Monster! (Umbo to longest spine) Linne, 1758-Gorgeous Orange" Collected in Tangle...
$70.00 Sale: $59.50

Max: 1

Spondylus regius 3 7/8” or 98.85mm. "Lovely"#700038
An F+ Spondylus regius 3 7/8” or 98.85mm. Linne, 1758 Collected in Tangle Nets at 70-80 meters in 1990’s Olango Island, Cebu,...
$20.00 Sale: $17.00

Max: 1

Spondylus regius 4 7/8” & 124.13mm"Gorgeous Long Spines"#700017
An F+/ very nearly F++Spondylus regius 4 7/8” or 124.13mm. Linne, 1758-“Long Spines” Collected at 25-30 meters by fishermen...
$30.00 Sale: $25.50

Max: 1

Spondylus regius 5” or 126.17mm."Choice"#700043
A Fine Spondylus regius 5” or 126.17mm. Linne, 1758 Collected in Tangle Nets at 60-80 meters in 1990’s Olango Island, Cebu, Philippines....
$22.00 Sale: $18.70

Max: 1