5237
Author
Almeida, Nadiny Martins De
Author
Ferreira, Vitor Góis
Author
Martens, Koen
Author
Higuti, Janet
text
Zootaxa
2023
2023-02-07
5237
1
88
journal article
54754
10.11646/ZOOTAXA.5237.1.1
eb843022-9cfd-4df9-a3ea-c022ab89528e
11755334
7640078
3A5A9DF9-763E-4561-AC62-7E0D2F0B54B4
Brasilocypria
gen. nov.
Type
species:
Brasilocypria pea
gen. et spec. nov.
Diagnosis
(see also
Table 3
). A2 with short seta accompanying five natatory setae absent. Md-palp with β-seta long and stout; length of last segment ca. 3x the basal width, apically set with three claws and one seta. Mx1-palp set with five structures (claws and setae). T1 with b-seta short and d-seta long. T2 with d1-seta absent, setae e and h
3 in
male short. T3 with d2-seta absent, dp-seta present; h2-seta ca. 2x the length of h1-seta. Proximal Sp-seta on CR long. Hp with lobe ls generally longated; lobe ms elongated or broad, generally shorter than ls. Ovarium posteriorly turned upwards (
Figs 13B, H
).
Differential diagnosis.
The new genus can be separated from the genera
Cyclocypris
,
Kempcyclocypris
,
Cypria
,
Mecynocypria
and
Allocypria
by the presence of marginal tubercles on the RV; furthermore, from
Cypria
,
Physocypria
and
Dentocypria
by the absence of the short seta accompanying the natatory setae on the A2 and from
Physocypria
also by the absence of d2-seta on T2 and T3 (these setae present in
Physocypria
) and by the ovarium which curves backward and upward (downward and forward in
Physocypria
).
Brasilocypria
gen. nov.
differs from
Keysercypria
by the relatively shorter final segment of the Md-palp (L = 3x W in
Brasilocypria
gen. nov.
, L = 5x W in
Keysercypria
;), by the presence of five setae/claws on the second segment of the Mx1-palp (four in
Keysercypria
), by the long proximal seta on the CR (medium length in
Keysercypria
) and especially by the short h3-seta in the male (very long in
Keysercypria
).
Brasilocypria
gen. nov.
is further distinguished from
Claudecypria
gen. nov.
by the presence of dp-seta on T3 (absent in
Claudecypria
gen. nov.
) and by the Hp and prehensile palps which follow the body plan of
Physocypria
(hyper-developed and with swollen shields and segments in
Claudecypria
gen. nov.
— see below).
Brasilocypria
gen. nov.
furthermore, differs from the subterranean genera
Kempfcyclocypris
and
Namiotkocypria
by at least the reduced natatory setae on the A
2 in
these genera.
Etymology.
The genus is named after the largest country in South America, from which all the present material was collected, with the root “
cypria
”.