On a new genus and four new species of the subfamily Cyprettinae (Crustacea, Ostracoda) from Brazilian floodplains

被引：1

作者：

Ferreira, Vitor Gois ^{[1
]}

Higuti, Janet ^{[1
,2
]}

Martens, Koen ^{[3
,4
]}

机构：

[1] State Univ Maringa UEM, Ctr Biol Sci CCB, Dept Biol DBI, Grad Program Ecol Inland Water Ecosyst PEA, Ave Colombo 5790, BR-87020900 Maringa, PR, Brazil

[2] State Univ Maringa UEM, Ctr Biol Sci CCB, Ctr Res Limnol Ichthyol & Aquaculture Nupelia, Ave Colombo 5790, BR-87020900 Maringa, PR, Brazil

[3] Royal Belgian Inst Nat Sci, Freshwater Biol, OD Nat, Vautierstr 29, B-1000 Brussels, Belgium

[4] Univ Ghent, Dept Biol, KL Ledeganckstr 35, B-9000 Ghent, Belgium

来源：

ZOOTAXA | 2023年 / 5343卷 / 05期

关键词：

Neotropical; comparative morphology; non-marine ostracods; new taxa; COMMUNITIES CRUSTACEA; PLEUSTON COMMUNITIES; RIVER-FLOODPLAIN; TAXONOMIC NOTES; PARANA RIVER; DIVERSITY; BIODIVERSITY; THAILAND; EXAMPLE; PULSES;

D O I：

10.11646/zootaxa.5343.5.1

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

We describe the new genus Triangocypretta gen. nov. and four new species from Brazilian floodplains. Triangocypretta angustus gen. et spec. nov. and Triangocypretta labiata gen. et spec. nov. were described from the Amazon floodplain only, while Triangocypretta nates gen. et spec. nov. was described from Amazon, Araguaia, and Parana River floodplains. Triangocypretta hirsuta gen. et spec. nov. was recorded from all four floodplains: Amazon, Araguaia, Pantanal and Parana. The new genus is characterized by the triangular shape of the carapace in lateral view, the absence of teeth on the posteroventral inner list in the right valve and the presence of anterior marginal septa in both valves, as well as by the relatively short and thin alpha and beta-setae on the mandibular palp. All populations found were asexual. Owing to the clear differences in valve anatomy and limb chaetotaxy as compared to species of Cypretta s.s., the four species were allocated to a new genus in the subfamily Cyprettinae.

引用

页码：401 / 438

页数：38

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