Monumanu/en

Animals are in biology one of the 4 kingdoms of multi-celled based life. The walls of their cells are soft. It is difficult to define exactly which organisms are animals, but farout most of the animals they move, they breath, and they eat. Their food consists of plants (herbivores) or of other animals (carnivores).

The kingdom of celled living creatures
animals (Latin:animalia)
plants ([plantae)
fungi (fungi)
'other' organisms, most single cell (protista)
Other organisms without distinct cells: bacteria, viruses, and so forth.

Top divisions in this kingdom
spunges (parazoa) all their cells are practically the same
"remainder" (mesozoa) not sure, maybe this group does not exist at all
animals with differentiated organs (eumetazoa) they have intestines and more
radial symmetrical animals (radiata) their body is almost the same in all directions from the centre
phylum: stinging jellyfish (cnidaria) jellyfishes, corals, anemones, …
phylum: nonstinging jellyfish (ctenophora) small jellyfishes
reflective symmetrical animals (bilateria) the left and right of their body is almost the same
primordial mouth animals (protostomata) the first hole in their embryonal phase becomes the  mouth, the second hole, if any, the anus
superphylum: skin shedding animals (ecdysozoa) caterpillars, spiders, lobsters, crabs, …
superphylum: tentacled animals (lophotrochozoa) octopus, squid, earthworms, …
secondary mouth animals (deuterostomata) the first hole in their embryonal phase becomes the anus, the second hole the mouth
phylum: spiky skinned animals (echinodermata) sea urchins, seastars, …
phylum: spinal corded animals (chordata) fishes, birds, quadrupeds, …

Alternative division
There is a simpler division scheme possible, favoured by some scientists
spunges (parazoa)
radial symmetrical animals (radiata)
with its phyla the same as above
reflective symmetrical animals (bilateria)
primordial mouth animals ( protostomata)
with its phyla the same as above
secondary mouth animals (deuterostomata)
phylum: spiky skinned animals (echinodermata) sea urchins, seastars, …
phylum: spinal corded animals (chordata) fishes, birds, quadrupeds, …

Notes
Add the cavity animals (coelenterata): the spunges and radial symmetricals.

The levels of superphylum, phylum, and so on do not necessarily align in the tables.

Divions in traditional Tongan culture
The division of living creaturs in traditional society was much simpler
manu — 'animals' used for any animal on the land, as such excluding fishes and shellfish
manupuna — 'birds', but also including insects
manu veʻefā — '4 feeted animals', mammals, reptiles
ika — 'fish' used for any larger animal in the sea, including turtles and whales, but not eels and jellyfish
fingota - 'shellfish' used for the remaining lifeforms in sea: shellfish, eels, spunges, seacucumbers, seastars and even seaweeds

The word monumanu was not used in former times, except as a derogatory term for manu.