with dorsal and ventral sides to the central stem (the stem is the vertical branch in the center of the colony to which the zooids attach). Zooids typically have special functions, and thus assume specific spatial patterns along the stem.

General morphology

Siphonophores typically exhibit one of three standard body plans matching the suborders: Cystonectae, Physonectae, and Calycophorae. Cystonects have a long stem

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