[1] This suborder includes the giant siphonophore, (Praya dubia); one of the longest lengthwise extant creatures (40–50m).

[2][5] The species Muggiaea bargmannae belongs to the family Diphyidae which have been found at depths between 400 and 2000 meters at both poles at a latitude between 36~87°N and 43~71°S.

[2] The species Hippopodius hippopus of the family Hippopodiidae on the other hand, have been observed to live at a depth between 0 and 300 meters at the latitudes 50°N~38°S.

[2] The somatocyst is an additional structure that is seen in the mesoglea of Calycophorans where oil globules are stored as a food source and also serve to provide buoyancy.

[2] This detached bract becomes a free living eudoxid that releases male or female gametes depending on its determined sex.

[2][7] A successfully fertilized gamete enters the larval development stage in which asexual reproduction takes over to recreate a full polygastric colony.

[1] 175 species of Siphonophores have been identified of which 5 are of Cystonectae (which includes the Portuguese man o' war) and the rest are of Codonophora.

[1] Current debates contemplate whether or not the Siphonophores including Calycophorans as a whole are losing or gaining zooid types.

[1] For descriptive analysis, specimens need to be carefully collected by research submersibles into capsules which takes much more time and effort.