A revision of the Paracanthocobitis zonalternans (Cypriniformes: Nemacheilidae) species complex with descriptions of three new species 

Zootaxa ◽  
2017 ◽  
Vol 4324 (1) ◽  
pp. 85 ◽  
Author(s):  
RANDAL A. SINGER ◽  
JOHN M. PFEIFFER ◽  
LAWRENCE M. PAGE
Keyword(s):  
New Species ◽  
Species Complex ◽  
Morphological Changes ◽  
Molecular Data ◽  
Genetic Distances ◽  
Andaman Sea ◽  
Surprising Result ◽  
Geographic Ranges ◽  
Morphological And Molecular Data ◽  
Three New Species

The Paracanthocobitis zonalternans species complex is revised based on analysis of morphological and molecular data. Three new species, P. nigrolineata, P. marmorata, and P. triangula are described, and P. phuketensis is removed from synonymy. All species are described morphologically, geographic ranges are delimited, and relationships are discussed for those for which molecular data (cytochrome c oxidase subunit 1 - COI) are available. In view of the morphological similarities of some of the species, a surprising result of this study was the moderately large genetic distances among species. Uncorrected COI p-distances between geographic clades of P. zonalternans ranged from 7.6–9.3%, suggesting that the species are reproductively isolated from one another even though morphological changes are minor. Paracanthocobitis phuketensis, distributed in several rivers draining to the Gulf of Thailand and to the Andaman Sea, shows considerable intraspecific variation that should be explored in detail for historical and ecological explanations. Cobitis chlorosoma McClelland, 1839 from Assam, India, is a synonym of P. botia, not P. zonalternans. 

scholarly journals Caridina biyiga sp. nov., a new freshwater shrimp (Crustacea: Decapoda: Atyidae) from Leichhardt Springs, Kakadu National Park, Australia, based on morphological and molecular data, with a preliminary illustrated key to Northern Territory Caridina

Zootaxa ◽  
2019 ◽  
Vol 4695 (1) ◽  
pp. 1-25
Author(s):  
JOHN W. SHORT ◽  
TIMOTHY J. PAGE ◽  
CHRISTOPHER L. HUMPHREY
Keyword(s):  
New Species ◽  
16S Rdna ◽  
National Park ◽  
Strong Support ◽  
Molecular Data ◽  
Genetic Distances ◽  
Northern Territory ◽  
Coi Gene ◽  
Gene Fragment ◽  
Morphological And Molecular Data

Caridina biyiga sp. nov. is described from Leichhardt Springs, Kakadu National Park, Northern Territory, Australia, based on morphological and molecular data. The new species is highly distinctive among its congeners in having the dactylus of pereiopod 5 similar to the dactyli of pereiopods 3–4 and lacking the comb-like row of spiniform setae typical of the genus. The branchial formula is also distinctive for the genus in lacking an arthrobranch at the base of pereiopod 1 and in having a vestigial epipod on maxilliped 1.                Despite the distinctive morphology of the new species, the molecular data did not provide strong support for the recognition of a new genus. Phylogenetic analyses of Australian Caridina using the mitochondrial 16S rDNA gene fragment placed the new species in a well-supported clade containing at least one typical species of Caridina. Within this clade, referred to as the ‘thermophila’ group, Kimura 2-parameter (K2P) genetic distances of 16S rDNA between the new species and sister taxa ranged from 5.1–6.0%. Analyses using the mitochondrial 3’ COI gene fragment from species of the ‘thermophila’ group yielded K2P genetic distances between the new species and its sister taxa ranging from 10.4–15.1%.                A preliminary illustrated key to Northern Territory Caridina is provided. The conservation significance of Leichhardt Springs and its aquatic fauna are also briefly discussed. 

A new species of cat-eyed snake (Serpentes: Dipsadinae: Leptodeirini) from the Andes of southern Ecuador

Zootaxa ◽  
2020 ◽  
Vol 4895 (3) ◽  
pp. 357-380
Author(s):  
OMAR TORRES-CARVAJAL ◽  
JUAN C. SÁNCHEZ-NIVICELA ◽  
VALENTINA POSSE ◽  
ELVIS CELI ◽  
CLAUDIA KOCH
Keyword(s):  
New Species ◽  
Nuclear Dna ◽  
Sequence Data ◽  
Molecular Data ◽  
Genetic Distances ◽  
Dna Sequence Data ◽  
The Andes ◽  
Southern Ecuador ◽  
Morphological And Molecular Data ◽  
A New Species

Leptodeira is one of the most widespread and taxonomically problematic snake taxa in the Americas. Here we describe a new species of Leptodeira from the Andes of southern Ecuador based on morphological and molecular data. The new species is geographically close and morphologically similar to L. ornata and L. larcorum, from which it can be distinguished by having smaller dorsal body blotches, a longer tail, and shorter spines on the hemipenial body. The shortest genetic distances between the new species and its congeners are 0.02 (16S), 0.05 (cytb), and 0.18 (ND4). The new species is restricted to the Jubones River Basin in southern Ecuador, an area of endemism for other reptile species. Our phylogenetic analysis based on mitochondrial and nuclear DNA sequence data also supports recognition of the names L. larcorum (restricted to Peru) for “L. septentrionalis larcorum”, and L. ornata for populations of “L. s. ornata” from central and eastern Panama, western Colombia, and western Ecuador. However, some samples of “L. s. ornata” from Panama and Costa Rica, as well as the new species described herein, are not included within or more closely related to L. ornata, which is sister to the clade (L. bakeri, L. ashmeadii). 

scholarly journals The Genus Leccinum (Boletaceae, Boletales) from China Based on Morphological and Molecular Data

2021 ◽  
Vol 7 (9) ◽  
pp. 732
Author(s):  
Xin Meng ◽  
Geng-Shen Wang ◽  
Gang Wu ◽  
Pan-Meng Wang ◽  
Zhu L. Yang ◽  
...  
Keyword(s):  
New Species ◽  
Color Change ◽  
Molecular Data ◽  
Line Drawings ◽  
Important Group ◽  
Microscopic Features ◽  
Identification Of Species ◽  
Greenish Blue ◽  
Morphological And Molecular Data ◽  
Three New Species

Leccinum is one of the most important groups of boletes. Most species in this genus are ectomycorrhizal symbionts of various plants, and some of them are well-known edible mushrooms, making it an exceptionally important group ecologically and economically. The scientific problems related to this genus include that the identification of species in this genus from China need to be verified, especially those referring to European or North American species, and knowledge of the phylogeny and diversity of the species from China is limited. In this study, we conducted multi-locus (nrLSU, tef1-α, rpb2) and single-locus (ITS) phylogenetic investigations and morphological observisions of Leccinum from China, Europe and North America. Nine Leccinum species from China, including three new species, namely L. album, L.parascabrum and L.pseudoborneense, were revealed and described. Leccinum album is morphologically characterized by the white basidioma, the white hymenophore staining indistinct greenish blue when injured, and the white context not changing color in pileus but staining distinct greenish blue in the base of the stipe when injured. Leccinumparascabrum is characterized by the initially reddish brown to chestnut-brown and then pale brownish to brown pileus, the white to pallid and then light brown hymenophore lacking color change when injured, and the white context lacking color change in pileus but staining greenish blue in the base of the stipe when injured. Leccinumpseudoborneense is characterized by the pale brown to dark brown pileus, the initially white and then brown hymenophore lacking color change when injured, and the white context in pileus and stipe lacking color change in pileus but staining blue in stipe when bruised. Color photos of fresh basidiomata, line drawings of microscopic features and detailed descriptions of the new species are presented.

scholarly journals Diversity and distribution of Epeorus (Caucasiron) (Ephemeroptera, Heptageniidae) in Iran, with descriptions of three new species

ZooKeys ◽  
2020 ◽  
Vol 947 ◽  
pp. 71-102
Author(s):  
Ľuboš Hrivniak ◽  
Pavel Sroka ◽  
Jindřiška Bojková ◽  
Roman J. Godunko ◽  
Javid Imanpour Namin ◽  
...  
Keyword(s):  
New Species ◽  
Habitat Preferences ◽  
Molecular Data ◽  
Central Iran ◽  
Integrative Approach ◽  
Northern Iran ◽  
Coi Sequences ◽  
Morphological And Molecular Data ◽  
Three New Species ◽  
First Time

Combining morphological and molecular data in an integrative approach, three new mayfly species of Epeorus (Caucasiron) are described. These include Epeorus (Caucasiron) alborzicus Hrivniak & Sroka, sp. nov. and Epeorus (Caucasiron) shargi Hrivniak & Sroka, sp. nov. from northern Iran, and Epeorus (Caucasiron) zagrosicus Hrivniak & Sroka, sp. nov. from central Iran. They are unambiguously delimited using both distance-based and likelihood-based approaches in the analyses of barcode COI sequences. Each new species is compared with other species of the subgenus and morphological diagnostic characters are provided. Based on extensive sampling of streams throughout the country, the distribution and habitat preferences of all Caucasiron species in Iran are assessed. Altogether, there are now six species recorded, among them also E. (C.) nigripilosus Sinitshenkova, 1976 is reported for the first time in Iran. Five species are distributed in the Alborz Mts. in northern Iran, one species was found in the Zagros Mts. in central Iran.

scholarly journals Three new species of the primitively segmented spider genus Songthela (Araneae, Mesothelae) from Guizhou Province, China

ZooKeys ◽  
2021 ◽  
Vol 1037 ◽  
pp. 57-71
Author(s):  
Zhaoyang Chen ◽  
Dengqing Li ◽  
Daiqin Li ◽  
Xin Xu
Keyword(s):  
New Species ◽  
Cytochrome C ◽  
Cytochrome C Oxidase ◽  
Dna Barcode ◽  
Morphological Characters ◽  
Molecular Data ◽  
Genetic Distances ◽  
Guizhou Province ◽  
Oxidase Subunit ◽  
Three New Species

We diagnose and describe three new species of the primitively segmented spider genus Songthela from Guizhou Province, China, based on morphological characters and molecular data: S. liuisp. nov. (♂♀), S. tianzhusp. nov. (♂♀), and S. yupingsp. nov. (♂♀). We provide the genetic distances within and among the three new species based on the DNA barcode gene, cytochrome c oxidase subunit I (COI) to support our descriptions. We also provide the COI GenBank accession codes for the three new species for future identification.

Two new species of the genus Crangonyx Bate, 1859 (Amphipoda: Crangonyctidae) from the St. Marks River Basin with notes on the “Crangonyx floridanus complex”

Zootaxa ◽  
2019 ◽  
Vol 4691 (4) ◽  
pp. 301-332 ◽  
Author(s):  
ANDREW G. CANNIZZARO ◽  
THOMAS R. SAWICKI
Keyword(s):  
New Species ◽  
Related Species ◽  
Species Delimitation ◽  
Species Complex ◽  
Morphological Characteristics ◽  
Molecular Data ◽  
Closely Related Species ◽  
Leon County ◽  
Two New Species ◽  
Morphological And Molecular Data

Crangonyx ephemerus n. sp. and Crangonyx pseudoephemerus n. sp. are described from the headwaters of the St. Marks River in Leon County, Florida, based on detailed morphological and molecular comparisons with the closely related species Crangonyx floridanus Bousfield, 1963. The morphological and molecular data, including three species delimitation models, lend support to the hypothesis that the taxon C. floridanus sensu lato represents a species complex. Diagnostic morphological characteristics are highlighted and discussed within this group to assist in future morphological analyses. 

Three new species of the genus Dendronotus from Japan and Russia (Mollusca, Nudibranchia)

Zootaxa ◽  
2020 ◽  
Vol 4747 (3) ◽  
pp. 495-513
Author(s):  
ALEXANDER MARTYNOV ◽  
YOSHIHIRO FUJIWARA ◽  
SHINJI TSUCHIDA ◽  
NADEZHDA SANAMYAN ◽  
KAREN SANAMYAN ◽  
...  
Keyword(s):  
New Species ◽  
North Pacific ◽  
Molecular Data ◽  
The North ◽  
Pacific Waters ◽  
Morphological And Molecular Data ◽  
Three New Species ◽  
First Time ◽  
Japanese Islands ◽  
The North Pacific

Three new species of the genus Dendronotus are described from the North Pacific waters of Japan and Russia. For the first time since 1949, three new species, D. jamsteci sp. nov., D. zakuro sp. nov. and D. bathyvela sp. nov. are described from the waters of the Japanese Islands. D. zakuro sp. nov. was also discovered in the waters of Russia (Kamchatka). The descriptions of the new species D. jamsteci sp. nov. and D. zakuro sp. nov. are based on morphological and molecular data; D. bathyvela sp. nov. morphologically belongs to the group of D. robustus, D. velifer and D. patricki. This study revises our knowledge of North Pacific species of the genus Dendronotus, considerably expands the number of species worldwide and contributes to the multilevel fine-scale diversity concept. 

Remarkable sexual dimorphism, rarity and cryptic species: a revision of the ‘aegrota species group’ of the Neotropical butterfly genus Caeruleuptychia with the description of three new species (Lepidoptera, Nymphalidae, Satyrinae)

2018 ◽  
Vol 49 (2) ◽  
pp. 130-182 ◽  
Author(s):  
Shinichi Nakahara ◽  
Thamara Zacca ◽  
Blanca Huertas ◽  
Andrew F. E. Neild ◽  
Jason P. W. Hall ◽  
...  
Keyword(s):  
New Species ◽  
Sexual Dimorphism ◽  
Cryptic Species ◽  
Molecular Data ◽  
Species Group ◽  
Morphological Data ◽  
Phylogenetic Hypothesis ◽  
Morphological And Molecular Data ◽  
Three New Species ◽  
First Time

The ‘aegrota species group’ of the Neotropical nymphalid genus Caeruleuptychia Forster, 1964, in addition to three other superficially similar, enigmatic species in the genus, are revised. A lectotype is designated for Euptychia aegrota Butler, 1867, E. aetherialis Butler, 1877 stat. rev., E. helios Weymer, 1911 and E. pilata Butler, 1867, and C. aetherialis is resurrected from its synonymy with C. aegrota. Caeruleuptychia helios caelestissima Brévignon, 2010, syn. nov., and Magneuptychia keltoumae Brévignon & Benmesbah, 2012, syn. nov. are both regarded as junior subjective synonyms of C. helios (Weymer, 1911), as a result of the discovery and first illustration of the female of this taxon. The female of C. aegrota is also described and illustrated for the first time, and three new species, C. trembathi Willmott, Nakahara, Hall & Neild, sp. nov., C. scripta Nakahara, Zacca & Huertas, sp. nov., and C. maryzenderae Lamas & Nakahara, sp. nov. are described and named. We analyze morphological and molecular data separately, in addition to combining morphological data with molecular data, to provide the first phylogenetic hypothesis for the taxa treated in this revision.

A new species of Colletotrichum from Sonchus sp. in Italy

Phytotaxa ◽  
2017 ◽  
Vol 314 (1) ◽  
pp. 55 ◽  
Author(s):  
RUVISHIKA S. JAYAWARDENA ◽  
ERIO CAMPORESI ◽  
ABDALLAH M. ELGORBAN ◽  
ALI H. BAHKALI ◽  
JIYE YAN ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Species Complex ◽  
Sequence Data ◽  
Distinct Species ◽  
First Record ◽  
Molecular Data ◽  
Colletotrichum Species ◽  
Morphological And Molecular Data ◽  
A New Species

Colletotrichum sonchicola, sp. nov. from Sonchus sp. (dandelion tribe) in Forlì-Cesena Province, Italy, is introduced using morphological and molecular data. Combined phylogenetic analysis of ITS, GAPDH, CHS, ACT and TUB2 sequence data demonstrate that C. sonchicola is a distinct species within the dematium species complex. The new species is illustrated and compared with related taxa. This provides the first record of a Colletotrichum species from the genus Sonchus.

scholarly journals Three new species and a new genus of majoid crabs from the eastern Pacific (Decapoda, Brachyura)

ZooKeys ◽  
2019 ◽  
Vol 825 ◽  
pp. 1-24 ◽  
Author(s):  
Jessica Colavite ◽  
Amanda Windsor ◽  
William Santana
Keyword(s):  
New Species ◽  
New Genus ◽  
Molecular Data ◽  
Eastern Pacific ◽  
Western Atlantic ◽  
Deep Waters ◽  
Morphological And Molecular Data ◽  
Three New Species ◽  
A New Species ◽  
General Appearance

Three new species and a new genus of majoid crabs from deep waters in the eastern Pacific are described and illustrated using morphological and molecular data. A new species of inachoidid, Collodesanartiussp. n. is described from Peru, which resembles C.tenuirostris Rathbun, 1893, in the general appearance of the carapace, but is distinguished by the details of tubercles on the carapace and thoracic sternum, proportions of the pereopod articles, and bathymetric distribution. A new epialtid, Nibiliamachalasp. n., is described from Ecuador; Nibilia A Milne-Edwards, 1878 has, until now, been considered to be monotypic, occurring only in the western Atlantic. This new species, from the eastern Pacific, closely resembles N.antilocapra (Stimpson, 1871) in the general morphology, but can be distinguished by the number of spines on the carapace and pereopods. Another epialtid, Solincaaulixgen. n. et sp. n, is establish for material collected from Ecuador and Peru, and can be easily identified from other taxa by the presence of a deep furrow between the very inflated branchial regions.

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