• Thumbnail for Prodissoconch
    A prodissoconch (meaning first or earliest or original shell) is an embryonic or larval shell which is present in the larva of a bivalve mollusk (clams...
    4 KB (512 words) - 19:51, 11 December 2023
  • Thumbnail for Protoconch
    gastropods. The homologous structure in bivalves (clams) is called the prodissoconch. Comparison of the whole shell and the protoconch of Atlanta lesueurii:...
    3 KB (346 words) - 11:02, 28 May 2025
  • most commonly the umbo or beak. In some species the embryonic shell or prodissoconch may be present at the apex of each of the two valves. Dance, S. Peter...
    2 KB (304 words) - 16:33, 30 April 2023
  • Thumbnail for Blue mussel
    the notable straight hinge of the prodissoconch I shell. The veliger continues to mature forming the prodissoconch II shell. In the end stage of veliger...
    24 KB (2,541 words) - 18:25, 24 May 2025
  • Thumbnail for Beak (bivalve)
    is not eroded or worn down at all, it may still be capped with the prodissoconch, which is the larval shell of the animal. Hatterlie, Eugene C.; Abbott...
    1 KB (174 words) - 03:13, 22 April 2021
  • Thumbnail for Veliger
    undergo considerable growth. As this occurs, the shell (known as a prodissoconch) and structures such as the larval foot, velum and visceral organs increase...
    12 KB (1,595 words) - 06:09, 25 May 2025
  • Thumbnail for Spawning
    of the Pacific oyster are planktotrophic, and are about 70 μm at the prodissoconch 1 stage. The larvae move through the water column via the use of a larval...
    96 KB (11,201 words) - 18:07, 25 May 2025
  • Thumbnail for Cymatioa cookae
    a longer posterior end. It has a small, sharply pointed beak and a prodissoconch 200 μm in diameter. The shell has irregular, slightly wavy commarginal...
    6 KB (726 words) - 08:50, 24 March 2025
  • Thumbnail for Pacific oyster
    of the Pacific oyster are planktotrophic, and are about 70 μm at the prodissoconch 1 stage. The larvae move through the water column via the use of a larval...
    34 KB (3,594 words) - 11:57, 9 December 2024
  • Thumbnail for Asperarca
    10-20 prominent teeth while the other has matching indentations. The prodissoconch starts out rounded and nearly circular before stretching into a parallelogram...
    4 KB (387 words) - 02:14, 27 May 2025
  • Thumbnail for Spondylus varius
    part is white, but a colourful (usually crimson, but it can be yellow) prodissoconch is clearly visible at the apical end. Right and left valve of the same...
    2 KB (132 words) - 07:41, 12 February 2025
  • many angles. Porcellanous – Like porcelain. Prismatic – Like a prism. Prodissoconch – The embryonic shell. Protoconch – The embryonic shell. Protract –...
    27 KB (2,499 words) - 07:40, 24 November 2024