On some Recent non-marine ostracods from northern China, with description of one new species

Abstract

Preliminary investigations of urban waters in Beijing City and small water-bodies in Inner

New Phenotypes of Limnocythere inopinata from Lakes in Badain Jaran Desert, Northern China

“…The first has one node, which is located in front of the median transverse sulcus of the valve, and thus also in front of the adductor muscle scars; therefore, it differs from the previously reported 1-noded phenotypes, where the node is located either in the postero-ventral part (Fig. 1; Zhai et al, 2010) or in the postero-dorsal part of the valve (e.g., Zhai and Zhao, 2014). The second new phenotype has two nodes, which are located in the postero-ventral and postero -dorsal parts of the valve, respectively; it therefore differs from the previously known 2-noded phenotype, where the nodes are situated in the antero-ventral and postero-ventral parts of the valve, respectively (Fig.…”

“…Limnocythere inopinata based on the number and location of nodes on the valve (Yin et al, 1999;Zhai et al, 2010Zhai et al, , 2014. In this study, two new phenotypes of L. inopinata were found from lakes in Badain Jaran Desert.…”

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Limnocythere inopinata (Baird, 1843) is an ostracod widely distributed in recent non-marine waters and in Quaternary sediments, where it comprises various phenotypes (Yin et al, 1999;Zhang et al, 2015). Based on the nodation patterns, five phenotypes were described in previous publications, namely, the unnoded, the phenotype with one node in the postero-ventral part of the valve, one with two nodes in the antero-ventral and postero-ventral parts of the valve, another with three nodes in the antero-ventral, postero-ventral and postero-dorsal parts of the valve, and the phenotype with one node in the postero-dorsal part of the valve (Yin et al, 1999;Zhai et al, 2010;Zhai and Zhao, 2014). The ecological differences between these phenotypes have not been well documented, and their taxonomic relationships are still under debate (Yin et al, 1999;Hou et al, 2007).

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On some modern Ostracoda (Crustacea) from the Tibetan Plateau in SW China, with descriptions of three new species

“…and the other two species, being distally much less inflated. The ZO of all the male I. mongolica specimens (Zhai & Zhao 2014) have 13-14 rows of spines; while the number is larger in Ilyocypris tibeta n. sp. (16-17), similar to I. japonica (15-17) and I. innermongolica (17-21).…”

Fossil and Recent meet Kempf Database

“…In a small yet significant study Zhai & Zhao (2014) contribute to the knowledge of the geographical distribution of several ostracod species in Palaearctic China. Several species are recorded for the first time in this area.…”