Freshwater Fossils from Central South Africa. 243 
Locality. 8. side of Shangani River flats on road to Lubu 
(Bubi District). 
Rock no. 1351.—Near the margin of a central depres- 
sion in this rock is a crowded group of minute Chara-stems 
of smaller diameter than those represented in no. 1352. In 
close proximity is a well-preserved oval fruit of medium size 
as well as fruit-cavities of minute size ; obscure Gastropod 
remains are also present, but too indefinite tor identification 
(Pl. VIII. fig. 2). Similar structures are also displayed in a 
microscopical section of this rock, especially a stem-section 
cut transversely, exhibiting about fourteen minute tubular 
apertures surrounding a moderately wide central canal 
CPV ciation Z): 
Locality. N. flank of Kana Valley on road to Lubu (Se- 
bungwe District). 
Rock no. 1352.—On the surface of this rock are displayed 
some narrow, fragmentary, flattened stems of Chara (PI. VIII. 
fig. 4), less than a millimetre in diameter, bearing the equi- 
distant, longitudinal, rounded ridges and furrows characteristic 
of that genus; the stems also exhibit a system of branching 
with obscure thickenings at the joints, while at their exposed 
transverse ends are indications of the central tube and sur- 
rounding minor tubes or cells which are so typical of Chara 
morphology. No fruits are directly associated with the stems, 
although there is a large, rather coarse, and spirally ridged 
ovate body lodged in a small cavity quite close to some stem- 
fragments, which represents an oogonium or fruit (PI. VIII. 
fig. 5). Besides the plant-remains are some minute Gastro- 
pods with faint longitudinal striations, too obscure for deter- 
mination, although the larger form, measuring 3 mm. in 
height and diameter, with a wide base and short conical spire, 
belongs to Viviparus (Pl. VIII. fig. 1 a), while another with 
an elongate spire and a more or less cylindrical axis, mea- 
suring 2°5 mm. in height and less than 1 mm. in diameter, 
may be a Paludestrina (Pl. VIII. fig. 16). There is another 
and somewhat different Paludestriniform shell on the surface 
of this rock of rather similar dimensions, giving a fairly com- 
plete dorsal outline (Pl. VIII. fig. 3) with a lengthy spire. 
These specimens exhibit no internal characters of the aperture, 
being firmly embedded in the siliceous matrix and yielding 
only dorsal views. 
Locality. Kana Umzola, N. flank of Kana Valley on road 
to Lubu (Sebungwe District). 
Lie 
