A new species of Contomastix (Squamata, Teiidae) supported by total evidence, with remarks on diagnostic characters defining the genus

2019 ◽  
pp. 23-36
Author(s):  
Mario. R. Cabrera
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Phylogenetic Reconstruction ◽  
Total Evidence ◽  
Molecular Evidence ◽  
Proximal Margin ◽  
Diagnostic Characters ◽  
Morphological Differences ◽  
A New Species ◽  
Molecular Characters

Formerly Cnemidophorus was thought to be the most speciose genus of Teiidae. This genus comprised four morphological groups that were later defined as four different genera, Ameivula, Aurivela, Cnemidophorus and Contomastix. The last appears as paraphyletic in a recent phylogenetic reconstruction based on morphology, but monophyletic in a reconstruction using molecular characters. Six species are allocated to Contomastix. One of them, C. lacertoides, having an extensive and disjunct geographic distribution in Argentina, Uruguay and Brazil. Preliminary analyses revealed morphological differences among its populations, suggesting that it is actually a complex of species. Here, we describe a new species corresponding to the Argentinian populations hitherto regarded as C. lacertoides, by integrating morphological and molecular evidence. Furthermore, we demonstrate that the presence of notched proximal margin of the tongue is a character that defines the genus Contomastix.

scholarly journals Morphological and molecular characterisation of Steinernema hermaphroditum n. sp. (Nematoda: Steinernematidae), an entomopathogenic nematode from Indonesia, and its phylogenetic relationships with other members of the genus

Nematology ◽  
2004 ◽  
Vol 6 (3) ◽  
pp. 401-412 ◽  
Author(s):  
S. Patricia Stock ◽  
Christine T. Griffin ◽  
Rani Chaerani
Keyword(s):  
New Species ◽  
First Generation ◽  
Entomopathogenic Nematode ◽  
Phylogenetic Reconstruction ◽  
Infective Juvenile ◽  
Molecular Evidence ◽  
Lateral Field ◽  
Third Stage ◽  
28S Rdna Sequence ◽  
A New Species

Abstract Steinernema hermaphroditum n. sp., a new entomopathogenic nematode isolated from soil samples in the Moluccan islands, Indonesia, is described. Morphological observations as well as biological evidence (cross-hybridisation studies) indicate the distinctness of S. hermaphroditum n. sp. from other Steinernema spp. This new species is characterised by the presence of hermaphrodites in the first adult generation. Key morphological diagnostic characters include: a digitate tail with a mucro and a glandular spermatheca filled with sperm in the first generation hermaphrodite; the value of D%; the morphology of the male spicules and gubernaculum and the number and arrangement of the genital papillae; the values of D%, E% and the pattern of the lateral field of the third-stage infective juvenile. Additionally, molecular evidence obtained from ITS rDNA RFLP profiles, 28S rDNA sequence analyses, and phylogenetic reconstruction provide further evidence to establish this nematode as a new species.

scholarly journals A New Species of Mimosa L. ser. Bipinnatae DC. (Leguminosae) from the Cerrado: Taxonomic and Phylogenetic Insights

Plants ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 934
Author(s):  
Matías Morales ◽  
Renée Fortunato ◽  
Marcelo Simon
Keyword(s):  
New Species ◽  
Phylogenetic Reconstruction ◽  
Identification Key ◽  
Brazilian Cerrado ◽  
Northern Limit ◽  
Cohesive Group ◽  
Morphological Differences ◽  
A New Species

Mimosa carolina (Leguminosae), a new species from the Parque Nacional Chapada das Mesas, located in the northern limit of the Brazilian Cerrado, is described and illustrated. In addition, a phylogenetic reconstruction was performed to recover the position of this species in relation to the main clades of the genus Mimosa. This new species is assigned to sect. Habbasia ser. Bipinnatae and exhibits relevant morphological differences with all described species of this series, most notably the prostate habit, glabrous stems, and absence of internal spicules. Our results indicate that this new entity is clearly nested in a strongly supported clade with other striated-corolla species of ser. Bipinnatae. Therefore, ser. Bipinnatae appears to be monophyletic, and a morphologically and ecologically cohesive group within Mimosa. An updated identification key for this series is provided.

scholarly journals Description of a new species of the genus Ameletus Eaton, 1885 (Ephemeroptera, Ameletidae) from Yunnan, China

ZooKeys ◽  
2021 ◽  
Vol 1021 ◽  
pp. 37-51
Author(s):  
Xianfu Li ◽  
Yanping Luo ◽  
Jian Jiang ◽  
Lili Wang ◽  
Xiaoli Tong
Keyword(s):  
New Species ◽  
Molecular Data ◽  
Molecular Evidence ◽  
Origin And Evolution ◽  
Mitochondrial Coi ◽  
Morphological Differences ◽  
A New Species

A new species with primitive characteristics, Ameletus daliensis Tong, sp. nov., is described, based on the morphology of imago, larva and egg with molecular data of the mitochondrial COI from Mount Cangshan, Dali, China. The new species is closely related to one of the most primitive mayflies, Ameletus primitivus Traver, 1939, by sharing persistent mouthparts in the alate stage, but it can be distinguished from the latter by the morphological differences of the mouthpart remains, wings and genitals in the imaginal stage. Both morphological and molecular evidence support that A. daliensis Tong, sp. nov. is a new member of the genus Ameletus. The discovery of the new species could help understand the origin and evolution of the genus Ameletus.

scholarly journals Begonia obdeltata (Begoniaceae), a new species from northeast Brazil

Phytotaxa ◽  
2014 ◽  
Vol 167 (2) ◽  
pp. 189 ◽  
Author(s):  
BERNARDA DE SOUZA GREGÓRIO GREGÓRIO ◽  
ELIANE DE LIMA JACQUES ◽  
JORGE ANTONIO SILVA COSTA ◽  
ALESSANDRO RAPINI
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Conservation Status ◽  
Northeast Brazil ◽  
Diagnostic Characters ◽  
A New Species

Begonia obdeltata, a new species of Begoniaceae from northeast Brazil, is described and illustrated. It is similar to B. grisea and B. petasitifolia, with which it is compared. Diagnostic characters, geographic distribution and conservation status of the new species are presented.

Mensularia rhododendri (Hymenochaetaceae, Basidiomycota) from southwestern China

Phytotaxa ◽  
2015 ◽  
Vol 212 (2) ◽  
pp. 157 ◽  
Author(s):  
Fang Wu ◽  
Jiao Yang ◽  
Li Wei Zhou
Keyword(s):  
New Species ◽  
Ribosomal Rna ◽  
Large Subunit ◽  
Fruit Body ◽  
Morphological Characters ◽  
Southwestern China ◽  
Molecular Evidence ◽  
Similar Species ◽  
Morphological Differences ◽  
A New Species

A new species Mensularia rhododendri is described from southwestern China on the basis of both morphological characters and molecular evidence. Phylogenetic analysis based on nuclear large subunit (nLSU) ribosomal RNA gene shows that the new species belongs to Mensularia. Morphologically, the new species is mostly similar to Mensularia hastifera by sharing similar hymenial setae and basidiospores in shape and size. However, M. rhododendri differs in smaller pores (5–6 per mm), thinner fruit body (up to 2.5 mm), shorter and unbranched hyphoid setae (up to 110 µm long) present in trama only, basidiospores not collapsed, and growth on Rhododendron in nearly the timber line of southwest China, while M. hastifera has relatively larger pores (3–4 per mm), thicker fruit body (up to 10 mm), longer and sometimes branched hyphoid setae (up to 300 µm long) frequently present in both trama and dissepiments, and mostly collapsed basidiospores, and occurs mostly on Fagus in the temperate area of Central Europe. The morphological differences between M. rhododendri and other similar species of Mensularia are also compared.

Frullania subarctica—a new species of the Frullania tamarisci complex (Frullaniaceae, Marchantiophyta)

Phytotaxa ◽  
2014 ◽  
Vol 173 (1) ◽  
pp. 61 ◽  
Author(s):  
Anna Alexandrovna Vilnet ◽  
Eugeny Alexandrovich Borovichev ◽  
Vadim Andreevich Bakalin
Keyword(s):  
New Species ◽  
Molecular Data ◽  
Molecular Evidence ◽  
Bayesian Approaches ◽  
The Caucasus ◽  
North West ◽  
Russian North ◽  
Tree Topologies ◽  
Morphological Differences ◽  
A New Species

This study tests the phylogenetic affinity and clarifies the taxonomy of Frullania tamarisci s. l. in Russia and adjacent areas based on critical morphological reinvestigation and DNA analyses. More than 100 accessions of F. tamarisci s. l. from the collections of KPABG, VBGI and UBC were studied morphologically, and the nrITS1-5.8S-ITS2 and trnL–trnF cpDNA loci of sixteen accessions were sequenced. Molecular data were combined with accessions from GenBank and phylogenetic estimations by maximum parsimony, maximum likelihood and Bayesian approaches were performed. The tree topologies obtained were congruent and resolved the specimens previously referred to F. nisquallensis from Russian North in a clade together with an accession from Alaska. This clade is only distantly related to European F. tamarisci s. str. and temperate western North American F. nisquallensis. Taking into account the morphological differences, we describe a new species Frullania subarctica Vilnet, Borovich. & Bakalin sp. nov. The species status for F. appendiculata occurring mainly in temperate East Asia was supported by molecular evidence, based on specimens from the Primorsky Territory of Russia. Populations of F. tamarisci s. str. from the Russian North West and the Caucasus Mountains are quite similar to those from European countries both morphologically and molecularly.

Corrections and emendations to the description of Deltamys araucaria Quintela et al., 2017 (Rodentia, Cricetidae)

Zootaxa ◽  
2018 ◽  
Vol 4379 (1) ◽  
pp. 134 ◽  
Author(s):  
ULYSES F. J. PARDIÑAS
Keyword(s):  
New Species ◽  
Rio Grande ◽  
Type Locality ◽  
Rio Grande Do Sul ◽  
Araucaria Forest ◽  
Diagnostic Characters ◽  
A New Species ◽  
Molecular Characters ◽  
Critical Aspects

A new species was recently described to the akodontine genus Deltamys Thomas, 1917, based on animals collected in Araucaria forest, Rio Grande do Sul state, Brazil. Quintela et al. (2017) described Deltamys araucaria on the basis of the integration of morphological, chromosomal, and molecular characters analysis. Here I correct and/or emend critical aspects of this paper, including the type locality, diagnostic characters, and the appropriate recognition of earlier literature on this same taxon. My aim in this note is not to criticize this important new contribution but to facilitate future communication among researchers. 

scholarly journals Chthonius (Chthonius) makirina (Chthoniidae, Pseudoscorpiones), a new species from Croatia

2012 ◽  
Vol 64 (2) ◽  
pp. 709-714
Author(s):  
B.P.M. Curcic ◽  
R.N. Dimitrijevic ◽  
T. Radja ◽  
M. Milincic
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Balkan Peninsula ◽  
Diagnostic Characters ◽  
A New Species

The pseudoscorpion sample discovered under a stone in Dalmatia (Croatia) was studied. A new species is described herein: Chthonius (Chthonius) makirina n. sp. This taxon is considered endemic to Dalmatia and the Balkan Peninsula. Along these lines, the diagnostic characters of the analyzed species are thoroughly described and figured. Taxonomic interrelationship and geographic distribution are briefly discussed.

A new species of Postia (Polyporales, Basidiomycota) from China based on morphological and molecular evidence

Phytotaxa ◽  
2014 ◽  
Vol 162 (3) ◽  
pp. 147 ◽  
Author(s):  
Lulu Shen ◽  
Baokai Cui ◽  
Yucheng Dai
Keyword(s):  
New Species ◽  
Phylogenetic Relationships ◽  
Molecular Evidence ◽  
Pore Surface ◽  
Hyphal System ◽  
A New Species ◽  
Molecular Characters

A new polypore, Postia duplicata, collected in Yunnan and Zhejiang provinces, is described and illustrated on the basis of morphological and molecular characters. Postia duplicata is characterized by pileate basidiomata with pale brownish to brown pore surface when bruised, duplex context, a monomitic hyphal system with clamped generative hyphae, presence of gloeocystidia in the hymenium, and cylindrical basidiospores (3.8–5.8 × 1.8–2.5 µm). Both morphological and molecular evidence confirmed the placement of the new species in Postia and showed its phylogenetic relationships.

scholarly journals A new species of the giant pill-millipede genus Sphaerobelum Verhoeff, 1924 from northern Thailand, with an extensive description and molecular characters (Diplopoda: Sphaerotheriida: Zephroniidae)

Zootaxa ◽  
2012 ◽  
Vol 3220 (1) ◽  
pp. 29 ◽  
Author(s):  
Nattarin Wongthamwanich ◽  
Somsak Panha ◽  
Petra Sierwald ◽  
Thomas Wesener ◽  
Kumthorn Thirakhupt
Keyword(s):  
New Species ◽  
Amino Acid ◽  
The Other ◽  
Maximum Likeli ◽  
Northern Thailand ◽  
The Family ◽  
Morphological Differences ◽  
First Time ◽  
A New Species ◽  
Molecular Characters

As a first step towards an inventory of the giant pill-millipedes in Thailand, a new species of the genus SphaerobelumVerhoeff, 1924, S. truncatum n. sp. is described from Nan Province, northern Thailand. A determination key is presentedfor all five known Sphaerobelum species. Clear morphological differences between S. truncatum n. sp. and the other fourSphaerobelum species were found on the anterior telopods. For the first time in Sphaerobelum, the partial mitochondrialCOI gene was sequenced for S. truncatum n. sp. and compared with distance, maximum parsimony and maximum likeli-hood methods to those of species from other giant pill-millipede genera. Sphaerobelum truncatum n. sp. was found to dif-fer from all other analyzed giant pill-millipedes, including species of Zephronia Gray, 1832, by 22–30%, includingnumerous amino acid changes, supporting the separate status of Sphaerobelum among other giant pill-millipede genera.Maximum likelihood and parsimony analyses support the placement of Sphaerobelum in the Zephroniidae. Figures of allrelevant structures of Sphaerobelum truncatum n. sp. are provided to allow the use of these characters in future descriptions of species of the family Zephroniidae.

Sign in / Sign up

Export Citation Format

Share Document