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Larval and early postlarval shell morphology of several venerid clams

  • J. G. Goodsell (a1), S. C. Fuller (a2), A. G. Eversole (a1), M. Castagna (a3) and R. A. Lutz (a4)...

Extract

Shell morphological features of the larvae and early postlarvae of species from two venerid (Mollusca: Lamellibranchia) subfamilies, Chioninae (Mercenaria mercenaria, M. campechiensis, M. campechiensis texana and Chionecancellata) and Pitarinae (Pitar morrhuanus), were examined using scanning electron microscopy. A single elongated fold on the anterior half of the left valve became more robust and a small fold in the centre of the right valve increased in length along the hinge line throughout the larval period. A MANOVA of shell length, shell height and provinculum length detected statistically significant (P) differences between the larval shells of Chioninae and Pitarinae, and within the Mercenaria.

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Larval and early postlarval shell morphology of several venerid clams

  • J. G. Goodsell (a1), S. C. Fuller (a2), A. G. Eversole (a1), M. Castagna (a3) and R. A. Lutz (a4)...

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