scholarly journals New insight into the identification and molecular phylogeny of dagger nematodes of the genusXiphinema(Nematoda: Longidoridae) with description of two new species

2013 ◽  
Vol 169 (3) ◽  
pp. 548-579 ◽  
Author(s):  
Carlos Gutiérrez-Gutiérrez ◽  
Carolina Cantalapiedra-Navarrete ◽  
Efrén Remesal ◽  
Juan E. Palomares-Rius ◽  
Juan A. Navas-Cortés ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Two New Species ◽  
Insight Into

scholarly journals Molecular phylogeny of Ischnocnema (Anura: Brachycephalidae) with the redefinition of its series and the description of two new species

2018 ◽  
Vol 128 ◽  
pp. 123-146 ◽  
Author(s):  
Pedro P.G. Taucce ◽  
Clarissa Canedo ◽  
Júlia Soares Parreiras ◽  
Leandro O. Drummond ◽  
Paulo Nogueira-Costa ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Two New Species

scholarly journals Taxonomy and molecular phylogeny of the Neotropical genusAtlantoscia(Oniscidea, Philosciidae): DNA barcoding and description of two new species

2015 ◽  
Vol 174 (4) ◽  
pp. 702-717 ◽  
Author(s):  
Bianca L. Zimmermann ◽  
Ivanklin S. Campos-Filho ◽  
Maríndia Deprá ◽  
Paula B. Araujo
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Dna Barcoding ◽  
Two New Species

scholarly journals A revised taxonomy of Asian snail-eating snakes Pareas (Squamata, Pareidae): evidence from morphological comparison and molecular phylogeny

ZooKeys ◽  
2020 ◽  
Vol 939 ◽  
pp. 45-64
Author(s):  
Ping Wang ◽  
Jing Che ◽  
Qin Liu ◽  
Ke Li ◽  
Jie Qiong Jin ◽  
...  
Keyword(s):  
New Species ◽  
Bayesian Inference ◽  
Molecular Phylogeny ◽  
Morphological Data ◽  
Multivariate Morphometrics ◽  
Cryptic Diversity ◽  
Cyt B ◽  
Morphological Comparison ◽  
The Family ◽  
Two New Species

The Asian snail-eating snakes Pareas is the largest genus of the family Pareidae (formerly Pareatidae), and widely distributed in Southeast Asia. However, potential diversity remains poorly explored due to their highly conserved morphology and incomplete samples. Here, on basis of more extensive sampling, interspecific phylogenetic relationships of the genus Pareas were reconstructed using two mitochondrial fragments (cyt b and ND4) and two nuclear genes (c-mos and Rag1), and multivariate morphometrics conducted for external morphological data. Both Bayesian Inference and Maximum Likelihood analyses consistently showed that the genus Pareas was comprised of two distinct, monophyletic lineages with moderate to low support values. Based on evidences from molecular phylogeny and morphological data, cryptic diversity of this genus was uncovered and two new species were described. In additional, the validity of P. macularius is confirmed.

Taxonomic changes and description of two new species for the Phyllodactylus lanei complex (Gekkota: Phyllodactylidae) in Mexico

Zootaxa ◽  
2018 ◽  
Vol 4407 (2) ◽  
pp. 151 ◽  
Author(s):  
TONATIUH RAMÍREZ-REYES ◽  
OSCAR FLORES-VILLELA
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Genetic Distance ◽  
Morphological Characters ◽  
Integrative Taxonomy ◽  
Cryptic Diversity ◽  
Ecological Data ◽  
Temperature And Precipitation ◽  
Two New Species ◽  
Taxonomic Changes

An integrative taxonomy approach was implemented based on analysis of genetic, phylogenetic, morphological and ecological data to identify the cryptic diversity within the Phyllodactylus lanei complex. At least six species can be identified, of which four are currently considered subspecies: Phyllodactylus lanei, Phyllodactylus rupinus, Phyllodactylus isabelae, Phyllodactylus lupitae and two corresponding to undescribed taxa, which are identified and described in this contribution. These differ from other Mexican geckos in several characters: genetic distance (DNAmt), position in molecular phylogeny (concatened data DNAmt+DNAnu), species tree, morphological characters such as snout-vent length, longitudinal scales, tubercles from head to tail, interorbital scales, scales across venter, third labial–snout scales and rows of tubercles across dorsum; there are also differences in their bioclimatic profiles (temperature and precipitation) and geographical distribution. The most recent studies on taxonomy and evolution of Mexican geckos (Phyllodactylus) show that the diversity of this group of reptiles is currently underestimated, suggesting that more research and conservation efforts are should be addressed at these lizards. 

scholarly journals Two New Species of Taygetina With a Possible Case of ‘Juxta Loss’ in Butterflies (Lepidoptera: Nymphalidae: Satyrinae)

2019 ◽  
Vol 3 (6) ◽  
Author(s):  
Shinichi Nakahara ◽  
Pável Matos-Maraví ◽  
Eduardo P Barbosa ◽  
Keith R Willmott ◽  
Gerardo Lamas ◽  
...  
Keyword(s):  
New Species ◽  
Species Diversity ◽  
Molecular Phylogeny ◽  
Rare Case ◽  
Unusual Case ◽  
Single Species ◽  
Character State ◽  
State Change ◽  
Two New Species ◽  
A New Species

Abstract The male genitalic characters of Hexapoda are well known for their great taxonomic and systematic value. Despite insect male genitalia displaying large diversity, variation, and modification across orders, some structures are consistently present, and such characters can serve as the basis for discussion regarding homology. In the order Lepidoptera, a male genitalic structure widely known as the ‘juxta’ is present in many taxa and absence or modification of this character can be phylogenetically informative at the generic or higher level. We here focus on the systematics of the so-called ‘Taygetis clade’ within the nymphalid subtribe Euptychiina, and report an unusual case of ‘juxta loss’ in a single species, Taygetina accacioi Nakahara & Freitas, n. sp., a new species from Brazil named and described herein. Additionally, we describe another west Amazonian Taygetina Forster, 1964 species, namely Taygetina brocki Lamas & Nakahara, n. sp., in order to better document the species diversity of Taygetina. Our most up-to-date comprehensive molecular phylogeny regarding ‘Taygetis clade’ recovered these two species as members of a monophyletic Taygetina, reinforcing the absence of juxta being a character state change occurring in a single lineage, resulting in an apomorphic condition, which we report here as a rare case in butterflies (Papilionoidea).

Molecular phylogeny of the weevil genus Kyklioacalles Stüben, with descriptions of a new subgenus Glaberacalles and two new species (Curculionidae: Cryptorhynchinae)

Zootaxa ◽  
2010 ◽  
Vol 2662 (1) ◽  
pp. 28 ◽  
Author(s):  
PETER E. STÜBEN ◽  
JONAS J. ASTRIN
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Bayesian Analysis ◽  
Morphological Differentiation ◽  
Molecular Data ◽  
Mitochondrial Genes ◽  
Morphological Evidence ◽  
New Subgenus ◽  
Western Palearctic ◽  
Two New Species

A molecular phylogeny of the western Palearctic weevil genus Kyklioacalles Stüben, 1999 is presented, combining two mitochondrial genes (CO1 and 16S) in a Bayesian analysis. Based on molecular data, the validity of the subspecies Kyklioacalles punctaticollis punctaticollis (Lucas, 1849) and Kyklioacalles punctaticollis meteoricus (Meyer, 1909) is discussed and the morphological differentiation of the endophalli and known distributions of both subspecies are verified. Glaberacalles subg. n. (formerly Kyklioacalles punctaticollis-group) and two new species are described, Kyklioacalles atlasicus sp.n. from Morocco and Kyklioacalles plantapilosus sp.n. from Spain. Kyklioacalles berberi (Stüben, 2005), comb. n. and Kyklioacalles olcesei (Tournier, 1873) comb. n. are transferred from Acalles Schoenherr. The molecular results further advocate a transfer of Onyxacalles pyrenaeus (Boheman, 1844) to Kyklioacalles; however this is not supported by morphological evidence. Kyklioacalles almadensis Stüben, 2004 syn. n. (Spain) is synonymized with Kyklioacalles bupleuri Stüben, 2004 (Tunisia). A catalogue of all 40 (sub-)species of Kyklioacalles is given and a key of the species of the subgenus Glaberacalles is presented.

Two more new species of the Cyrtodactylus peguensis group (Squamata: Gekkonidae) from the fringes of the Ayeyarwady Basin, Myanmar

Zootaxa ◽  
2019 ◽  
Vol 4577 (2) ◽  
pp. 274 ◽  
Author(s):  
L. LEE GRISMER ◽  
PERRY L. JR. WOOD ◽  
MYINT KYAW THURA ◽  
NAY MYO WIN ◽  
EVAN S. H. QUAH
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Mitochondrial Gene ◽  
Color Pattern ◽  
Wildlife Sanctuary ◽  
The West ◽  
Two New Species

Two new species of Bent-toed Geckos of the Cyrtodactylus peguensis group are described from foothill areas occurring on opposite sides of the Ayeyarwady Basin. Cyrtodactylus nyinyikyawi sp. nov. from the Shwe Settaw Wildlife Sanctuary, Magway Region in the east and C. pyadalinensis sp. nov. from the Panluang-Pyadalin Wildlife Sanctuary, Shan State in the west bear unique suits of morphological and color pattern character states separating them from all species in the peguensis group. Additionally, a molecular phylogeny based on the mitochondrial gene ND2 indicates that neither species is nested within, nor sister to any known species in the group. This study augments recent and ongoing studies showing that the Ayeyarwady Basin is herpetologically more diverse than previously considered and should be incorporated into ongoing discussions concerning conservation efforts in Myanmar. 

Two new species of the subterranean amphipod genus Stygobromus (Amphipoda: Crangonyctidae) from Siberia, with new data on Stygobromus pusillus (Martynov) and remarks on morphology and biogeographic relationships

Zootaxa ◽  
2010 ◽  
Vol 2478 (1) ◽  
pp. 41 ◽  
Author(s):  
DMITRY A. SIDOROV ◽  
JOHN R. HOLSINGER ◽  
VADIM V. TAKHTEEV
Keyword(s):  
New Species ◽  
North America ◽  
Careful Evaluation ◽  
Biogeographic History ◽  
Altay Mountains ◽  
Two New Species ◽  
Palearctic Region ◽  
History Of ◽  
Material Utilization ◽  
Insight Into

Two new species of the subterranean amphipod genus Stygobromus are described from groundwater habitats in Siberia: Stygobromus mikhaili n. sp. from a spring in the Central Altay Mountains and Stygobromus anastasiae n. sp. from two non-freezing springs in South Pribaikalye in the Irkutsk area. Additional taxonomic details of the previously described S. pusillus (Martynov) from Teletskoye Lake, also in Central Altay, are illustrated based on syntype material. Utilization of SEM has revealed a tiny structure on antenna 2 that appears to be a new character, and may prove useful in future analyses. Descriptions of the two new species raise the total number of described species in the genus Stygobromus to 134, but four or possibly five have been found in the Palearctic region outside North America. However, it is likely that continued exploration of subterranean groundwater habitats in Siberia and other parts of the Palearctic will reveal additional new species of Stygobromus and provide more insight into the origin and geographic distribution of this large, northern hemisphere, subterranean freshwater amphipod genus. Careful evaluation of taxonomic affinities of the new species and comparison with previously described congeners should provide further insight into the biogeographic history of Stygobromus.

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