Assessment of distributional characteristics and ecological risks of cyclic volatile methylsiloxanes in sediments from urban rivers in northern Vietnam

We describe a new species of the Rhacophorus genus, which differs from all species known in Asia by the combination of characters. It strongly differs also from small and middle-sized species of Rhacophorus sensu lato: Rhacophorus calcaneus Smith, 1924, Leptomantis cyanopunctatus (Manthey et Steiof, 1998), Rhacophorus hoabinhensis Nguyen, Pham, Nguyen, Ninh et Ziegler, 2017, Rhacophorus hoanglienensis Orlov, Lathrop, Murphy et Ho, 2001, Zhangixalus jarujini (Matsui et Panha, 2006), Rhacophorus laoshan Mo, Jiang, Xie et Ohler, 2008, Rhacophorus pardalis Günther, 1858, Rhacophorus rhodopus Liu et Hu, 1960, Rhacophorus robertingeri Orlov, Poyarkov, Vassilieva, Ananjeva, Nguyen, Sang, and Geissler, 2012, Leptomantis robinsonii (Boulenger, 1903), Rhacophorus spelaeus Orlov, Gnophanxay, Phimminith, and Phomphoumy, 2010, Rhacophorus translineatus Wu, 1977, Rhacophorus turpes Smith, 1940, Rhacophorus vampyrus Rowley, Le, Thi, Stuart et Hoang, 2010, Rhacophorus viridimaculatus Ostroshabov, Orlov et Nguyen, 2013 by having brown color with two green dorsolateral stripes starting at the groin level and connecting through the distal part of eyelid with green triangle on the head, slender body and head, lower ratio HW/HL 0.86, lower HW/SVL 0.28 and lower ratio HL/SVL 0.32.

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The genus Synura (Synurales, Synurophyceae) in small urban rivers of Nizhniy Novgorod

Novosti sistematiki nizshikh rastenii ◽

10.31111/nsnr/2017.51.57 ◽

2017 ◽

Vol 51 ◽

pp. 57-70 ◽

Cited By ~ 1

Author(s):

E. S. Gusev ◽

O. S. Perminova ◽

N. A. Startseva ◽

A. G. Okhapkin

Keyword(s):

Taxonomic Composition ◽

Morphological Data ◽

Small Rivers ◽

Urban Rivers ◽

Large Lakes ◽

Volga River ◽

Volga River Basin ◽

Means Of Transmission ◽

Special Studies ◽

The City

The latest special studies of the genus Synura in Russia were conducted in the 1970s. In the last decade, 14 new species of the genus were described based on molecular and morphological data. The total number of valid taxa of the genus has increased to 49. Only 18 taxa of Synura are known in Russia up to date, and the diver sity of the genus on this huge territory is strongly underestimated. Previous studies of the genus were focused mainly on large lakes or reservoirs. To reveal a more complete flora, it is necessary to include other habitats into account. Small urban rivers can be prospective habitats for interesting taxa including synuralean algae. Our study focuses on the taxonomic composition of the genus Synura in four small rivers in Nizhniy Novgorod (European Russia): Chyornaya, Levinka, Borzovka and Rzhavka. All the rivers flow in the city and fall under strong anthropogenic impact. The genus Synura was studied by means of transmission and scanning electron microscopy during 2011, 2012, 2014, 2015. In total, eight species and one form of Synura have been found: S. conopea, S. curtispina, S. echinulata, S. glabra, S. macropora, S. petersenii, S. spinosa f. spinosa, S. spinosa f. longispina, S. uvella. All nine taxa were observed in the river Chyornaya. Five taxa were found in the rivers Levinka, Borzovka and Rzhavka. One species (Synura conopea) is a new record to the flora of Russia. It was found in all studied rivers. Four taxa (S. conopea, S. glabra, S. macropora, S. spinosa f. longispina) are new records to the Middle Volga river basin.

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New data on the tribe Ducetiini from Vietnam (Orthoptera: Tettigoniidae: Phaneropterinae)

Zoosystematica Rossica ◽

10.31610/zsr/2010.19.1.29 ◽

2010 ◽

Vol 19 (1) ◽

pp. 29-34

Author(s):

A.V. Gorochov

Keyword(s):

Systematic Position ◽

Type Locality ◽

Northern Vietnam ◽

Central Vietnam ◽

Erroneous Data

Prohimerta (Anisotima) laocai sp. nov. from Northern Vietnam and Paraducetia cruciata gialai subsp. nov. from Central Vietnam are described. Corrected are some erroneous data on systematic position of Prohimerta (Anisotima) vieta, P. (Prohimerta) maculosa, and Paraducetia cruciata, as well as those on the type locality of P. maculosa.

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