Calyptogena magnifica Boss and Turner, 1980, Galápagos Rift. OTHER COMMON NAMES
English: Magnificent Calypto clam, vesicomyid clam. PHYSICAL CHARACTERISTICS
Shell is oval with a subcentral umbo; moderately inflated with irregular concentric growth lines, slightly gaping. Color is white and chalky, with a yellow or brown periostracum persistent at margins only. Grows as long as 10 in (26 cm). Interior is porcelain white. Mantle and foot are iridescent pink; siphons short; visceral mass is red due to presence of hemoglobin in blood; byssus present only in juveniles.
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