1th degree of south
latitude.

(29) Very distinct from the _Ki-mbundu_ speech (though with connecting
forms) is the _Oci-herero_ group, which includes the _Herero_ language of
Damaraland, the _Umbundu_ of the Bihe highlands of south Angola, the _Nano_
of the Benguela coast, and _Si-ndonga_, _Ku-anyama_ and _Oci-mbo_ of the
southern regions of Portuguese Angola and the northern half of German
South-West Africa. The languages of group No. 29 probably extend as far
inland as the Kwito and Kubango rivers, in short, to the Zambezi watershed.
On the south they are confronted with the Hottentot languages. The Haukoin
or Hill Damaras--a Negro race of unexplained affinities and apparently
speaking a Hottentot language--occupy an enclave in the area of _Herero_
speech.

(30) What may be called the _Kiboko_ or _Kibokwe_ (also _Kioko_) family of
eastern Angola is a language-group which seems to offer affinities to the
languages of the Upper Zambezi and to those of groups Nos. 28 and 29. It
extends eastwards into the south-western portion of the Belgian Congo, and
includes the _Lubale_ of northern Barotseland and the sources of the river
Zambezi, and possibly the _Gangela_ of south-western Angola.

(31) Southwards of group No. 30 is that of the _Barotseland_ languages, of
which the best-known form--almost the only one that is effectively
illustrated--is _Si-luyi_. To _Si-luyi_ may be related the _Mabunda_ of
Western Barotseland. The dialects of the _Ambwela_, _A-mbwe_, _Ma-bukushu_
and _A-kwamashi_ are probably closely related.

(32) Next is a group which might be styled the _Subiya-Tonga-Ila_, though
some authorities think that _Tonga_ and _Ila_ deserve to be ranked as an
independent group. There is, however, a close alliance in structure between
the languages of each of the two subsections. The _Tonga_ subgroup would
include the dialects of the _Ba-tetela_, the _Ba-ila_ (_Mashukulumbwe_) and
of all Central Zambezia. _Ci-subiya_ is the dominant language of South-West
Zambezia, along a portion of the Zambezi river south of Barotseland, and in
the lands lying between the Zambezi and the Chobe-Linyante river. _Subiya_
is one of the most archaic of Bantu languages, more so than _Tonga_. Both
are without any strong affinity to _Oci-herero_, and only evince a _slight_
relationship with the Zulu group (No. 44).

(33) The _Bisa_ or _Wisa_ family includes the languages of Iramba, Bausi,
Lukinga, in the southernmost projection of the Bel