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  • Thumbnail for Membraniporidae
    most of the frontal surface is occupied by frontal membrane. An intertentacular organ is also present. The larvae are not brooded. The ancestrula is generally...
    1 KB (110 words) - 04:27, 25 October 2023
  • Thumbnail for Bryozoa
    projection called the "intertentacular organ" in the base of a pair of tentacles. Others' are fertilized internally, in the intertentacular organ or in the coelom...
    132 KB (12,772 words) - 22:46, 15 April 2024
  • Thumbnail for Phoronis
    of a dorsal ganglion, a tentacle nerve ring, an inner nerve ring, intertentacular groups of perikarya, and tentacle nerves. These tentacles nerves have...
    11 KB (1,279 words) - 14:14, 19 May 2024