Mactra sentence example

mactra
  • The embryo is provided with ten hooks, and appears to select Lamellibranchs (Mactra) for its intermediate host.
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  • The best known and most frequent forms are the asari (Tapes philippinarum), the hamaguri (Meretrix lusoria), the baka (Mactra sulcataria), the aka-gai (Scapharca inflata), the kaki (oyster), the awabi (Haliotis japonica), the sazae (Turbo cornutus), the hora-gai (Trilonium tritonius), &c. Among the cephalopods several are of great value as articles of food, e.g.
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  • A pyloric caecum connected with the stomach is commonly found, containing a tough flexible cylinder of transparent cartilaginous appearance, called the " crystalline style " (Mactra).
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  • In some Lamellibranchs (Pecten, Spondylus, Pholas, Mactra, Tellina, Pectunculus, Galeomma, &c.), although cephalic eyes are generally absent, special eyes are developed on the free margin of the mantle-skirt, apparently by the modification of tentacles commonly found there.
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  • Such eyes on the mantle-edge are found in Pecten, Spondylus, Lima, Pinna, Pectunculus, Modiola, Cardium, Tellina, Mactra, Venus, Solen, Pholas and Galeomma.
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