228
Table 2. Summary on the presence or absence of the pulvinus and the linguiform genital outgrowths, termination of the
non-retractile basal part of the penes on the abdominal segments, general morphology of the cercopods, and termination of
the brood-pouch on the abdominal segments. A = absent, X = present.
Streptocephalus
pulvinus
linguiform
termination of basal
cercopods
termination
reference
outgrowths
part of penes
dendyigroup
dendyi subgroup
dendy
?
X
middle of2
kargesi
X
A
middle ofl
purcelli
X
?
bouvieri subgroup
bouvieri
X
X
one-third of 1
gauthieri
?
?
?
rothschildi
X
X
third-third of 1
spinifer
X
X
middle of 1
zeltneri
X
X
sudanicus group
javanensis
?
lamellifer
X
A
third-third of 1
kaokoensis
?
?
?
sudanicus
X
A
one-third of 1
zuluensis
?
A
third-third of 1
vitreus group
bidentatus
X
A
one-third of 1
macrourus
X
A
vitreus
X
A
sealii group
bourquinii
X
A
middleofl
distinctus
X
A
one-third of 1
sealii
X
X
middle of 1
similis
X
A
spinosus
X
A
one-third of 1
woottoni
X
X
middle of 1
cafer group
cafer
X
A
one-third of 1
coomansi
X
?
?
indistinctus
X
A
one-third of 1
trifidus
X
A
sp. A
X
A
middle of I
S. rubricaudatus and S. torvicornis). Linguiform outgrowths are typically absent in the species of the cafer
and gracilis groups, and in the proboscideus and mackini subgroups (Table 2). Contrary to the report of Linder (1941:232), S. distinctus, S. lamellifer and S. texanus do not exhibit such outgrowths.
Creaser (1930) proposed that the structure of the
cercopods could offer a convenient method for groupbrood-pouch
spinose
5
setose
4
spinose
6--7
Sars (1898)
spinose
5
setose
5
Gauthier (1939)
spinose
5-7
5
3-4
setose
3
Brehm (1955)
lamelliform
4-5
setose
2
Barnard (1929)
3-4
4
spinose
5---6
4-5
setose
4-5
setose
5
spinose
5
4---6
4-7
?
setose
4-5
spinose
5
setose
6
5-7
spinose
5-7
5-6
ing the members of the genus. However, in light of the
present classification, morphology of the cercopods
appears to be only of secondary importance above
species level. Setose cercopods, with apparently no
modification, are found in all species of the dichotomus (4 species) and torvicornis (17 species) groups.
Also all the species of the sudanicus group have setose
cercopods, with the one exception of a lamellar mod-
Table 2. Summary on the presence or absence of the pulvinus and the linguiform genital outgrowths, termination of the
non-retractile basal part of the penes on the abdominal segments, general morphology of the cercopods, and termination of
the brood-pouch on the abdominal segments. A = absent, X = present.
Streptocephalus
pulvinus
linguiform
termination of basal
cercopods
termination
reference
outgrowths
part of penes
dendyigroup
dendyi subgroup
dendy
?
X
middle of2
kargesi
X
A
middle ofl
purcelli
X
?
bouvieri subgroup
bouvieri
X
X
one-third of 1
gauthieri
?
?
?
rothschildi
X
X
third-third of 1
spinifer
X
X
middle of 1
zeltneri
X
X
sudanicus group
javanensis
?
lamellifer
X
A
third-third of 1
kaokoensis
?
?
?
sudanicus
X
A
one-third of 1
zuluensis
?
A
third-third of 1
vitreus group
bidentatus
X
A
one-third of 1
macrourus
X
A
vitreus
X
A
sealii group
bourquinii
X
A
middleofl
distinctus
X
A
one-third of 1
sealii
X
X
middle of 1
similis
X
A
spinosus
X
A
one-third of 1
woottoni
X
X
middle of 1
cafer group
cafer
X
A
one-third of 1
coomansi
X
?
?
indistinctus
X
A
one-third of 1
trifidus
X
A
sp. A
X
A
middle of I
S. rubricaudatus and S. torvicornis). Linguiform outgrowths are typically absent in the species of the cafer
and gracilis groups, and in the proboscideus and mackini subgroups (Table 2). Contrary to the report of Linder (1941:232), S. distinctus, S. lamellifer and S. texanus do not exhibit such outgrowths.
Creaser (1930) proposed that the structure of the
cercopods could offer a convenient method for groupbrood-pouch
spinose
5
setose
4
spinose
6--7
Sars (1898)
spinose
5
setose
5
Gauthier (1939)
spinose
5-7
5
3-4
setose
3
Brehm (1955)
lamelliform
4-5
setose
2
Barnard (1929)
3-4
4
spinose
5---6
4-5
setose
4-5
setose
5
spinose
5
4---6
4-7
?
setose
4-5
spinose
5
setose
6
5-7
spinose
5-7
5-6
ing the members of the genus. However, in light of the
present classification, morphology of the cercopods
appears to be only of secondary importance above
species level. Setose cercopods, with apparently no
modification, are found in all species of the dichotomus (4 species) and torvicornis (17 species) groups.
Also all the species of the sudanicus group have setose
cercopods, with the one exception of a lamellar mod-