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Precisions about the different sub-species
I have already talked a bit about some sub-species, on pages 32 and 73... If there are 5 species of rhinos, it is without counting the sub-species. But, if it's interesting to precise that, some figures also show that, if the overkill carries on, these sub-species will soon belong to the past...
The white rhinoceros: Ceratotherium simum
This species is divided in 2
sub-groups:
Ceratotherium simum cottoni,
the "northern" white rhino and
Ceratotherium simum simum,
the "southern" one.
Cottoni perhaps doesn't exist anymore, considering the observations of specialists who used to look for them in territories of the actual Democratic republic of Congo.
The black rhinoceros: Diceros bicornis
This species is divided in 7
sub-groups:
Diceros bicornis bicornis,
Diceros bicornis minor,
Diceros bicornis michaeli,
Diceros bicornis longipes,
Diceros bicornis ladoensis,
Diceros bicornis chobiensis and
Diceros bicornis brucii.
Of the 7 sub-species of the black rhino, 4 are more strongly represented. Indeed, chobiensis, ladoensis and brucii could have disappeared. Longipes should now only count 15 animals (Cameroons and Rwanda).
The Indian rhinoceros: Rhinoceros unicornis
doesn't count no sub-species.
The Javan rhinoceros: Rhinoceros sondaicus
This species is divided in 3
sub-groups:
Rhinoceros sondaicus sondaicus,
Rhinoceros sondaicus annamiticus and
Rhinoceros sondaicus inermis.
Inermis is probably extincted. Very few annamiticus are still living in Viet-Nam.
The Sumatran rhinoceros: Dicerorhinus sumatrensis
This species is divided in 3
sub-groups:
Dicerorhinus sumatrensis sumatrensis,
Dicerorhinus lasiotis and
Dicerorhinus sumatrensis harrissoni.
Each of these 3 sub-species probably counts less than 12 animals...
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