scholarly journals Integrative taxonomy of the Felimare californiensis and F. ghiselini species complex (Nudibranchia: Chromodorididae), with description of a new species from Peru

2017 ◽  
Vol 83 (4) ◽  
pp. 461-475 ◽  
Author(s):  
Craig A Hoover ◽  
Vinicius Padula ◽  
Michael Schrödl ◽  
Yuri Hooker ◽  
Ángel Valdés
2018 ◽  
Vol 84 (3) ◽  
pp. 334-334
Author(s):  
Craig A Hoover ◽  
Vinicius Padula ◽  
Michael Schrödl ◽  
Yuri Hooker ◽  
Ángel Valdés

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1454
Author(s):  
Ilenia Clavero-Camacho ◽  
Juan Emilio Palomares-Rius ◽  
Carolina Cantalapiedra-Navarrete ◽  
Guillermo León-Ropero ◽  
Jorge Martín-Barbarroja ◽  
...  

This study delves into the diagnosis of pin nematodes (Paratylenchus spp.) in Spain based on integrative taxonomical approaches using 24 isolates from diverse natural and cultivated environments. Eighteen species were identified using females, males (when available) and juveniles with detailed morphology-morphometry and molecular markers (D2-D3, ITS and COI). Molecular markers were obtained from the same individuals used for morphological and morphometric analyses. The cryptic diversity using an integrative taxonomical approach of the Paratylenchus straeleni-species complex was studied, consisting of an outstanding example of the cryptic diversity within Paratylenchus and including the description of a new species, Paratylenchus parastraeleni sp. nov. Additionally, 17 already known species were identified comprising P. amundseni, P. aciculus, P. baldaccii, P. enigmaticus, P. goodeyi, P. holdemani, P. macrodorus, P. neoamblycephalus, P. pandatus, P. pedrami, P. recisus, P. sheri, P. tateae, P. variabilis, P. veruculatus, P. verus, and P. vitecus. Eight of these species need to be considered as first reports for Spain in this work (viz. P. amundseni, P. aciculus, P. neoamblycephalus, P. pandatus, P. recisus, P. variabilis, P. verus and P. vitecus). Thirty-nine species of Paratylenchus have been reported in Spain from cultivated and natural ecosystems. Although we are aware that nematological efforts on Paratylenchus species in Southern Spain have been higher than that carried out in central and northern part of the country, the present distribution of the genus in Spain, with about 90% of species (35 out of 39 species, and 24 of them confirmed by integrative taxonomy) only reported in Southern Spain, suggest that this part of the country can be considered as a potential hotspot of biodiversity.


Zoology ◽  
2020 ◽  
Vol 141 ◽  
pp. 125782 ◽  
Author(s):  
Cintia Oliveira Carvalho ◽  
Alexandre Pires Marceniuk ◽  
Claudio Oliveira ◽  
Wolmar Benjamin Wosiacki

2020 ◽  
Author(s):  
Patricio Hernáez ◽  
Marcel S. Miranda ◽  
Juliana P. P. Rio ◽  
Marcelo A.A. Pinheiro

AbstractThe ghost shrimp Callichirus major (Say, 1818) is widely distributed in the Atlantic Ocean from ∼23°N to ∼26°S, and has also been reported from the tropical eastern Pacific. Evidence has been accumulating over many years that C. major is actually a species complex. Yet, the name C. major is widely and frequently used in many kinds of research. The current lack of clarity in the use of the name C. major has resulted in nomenclatural instability, but also in unreliability and miscommunication of the available ecological and distributional information. Existing morphological and molecular evidence is reviewed and new evidence presented for the specimens from the southern localities previously assigned to C. major s. l. actually being a new species. That new species is herein described based on morphological and molecular evidence. Additionally, a neotype is selected for C. major in order to settle the defining characters of C. major s. str. and, therefore, ensuring the correct use of this name.


2019 ◽  
Vol 152 (1) ◽  
pp. 36-59
Author(s):  
Ljiljana Šašić Zorić ◽  
Jelena Ačanski ◽  
Ante Vujić ◽  
Gunilla Ståhls ◽  
Mihajla Djan ◽  
...  

AbstractThe taxonomy of Merodon dobrogensis Bradescu, 1982 (Diptera: Syrphidae) species subgroup was reviewed. Multiple data sources (morphology, geometric morphometry of wings and surstylus, molecular data, and distributional data) were used to investigate the species subgroup in the manner of integrative taxonomy. Merodon dobrogensis Bradescu, 1982 and M. puniceus Vujić, Radenković, and Pérez-Bañón, 2011 are supported as distinct species belonging to the M. dobrogensis species complex within the M. dobrogensis species subgroup. Additionally, evidence is presented for the description of a new species, M. rojoi Radenković and Vujić new species, with a distribution in mainland Greece, the Greek island Euboea, and the Peloponnese. A short diagnosis is provided for the M. aureus species group, the M. dobrogensis species subgroup, and the newly defined M. dobrogensis species complex, in addition to a description of the new species, with drawings and photographs of adult morphology.


Author(s):  
Marie L Verheye ◽  
Cédric D’Udekem D’Acoz

Abstract Among Antarctic amphipods of the genus Eusirus, a highly distinctive clade of giant species is characterized by a dorsal, blade-shaped tooth on pereionites 5–7 and pleonites 1–3. This lineage, herein named ‘crested Eusirus’, includes two potential species complexes, the Eusirus perdentatus and Eusirus giganteus complexes, in addition to the more distinctive Eusirus propeperdentatus. Molecular phylogenies and statistical parsimony networks (COI, CytB and ITS2) of crested Eusirus are herein reconstructed. This study aims to formally revise species diversity within crested Eusirus by applying several species delimitation methods (Bayesian implementation of the Poisson tree processes model, general mixed Yule coalescent, multi-rate Poisson tree processes and automatic barcode gap discovery) on the resulting phylogenies. In addition, results from the DNA-based methods are benchmarked against a detailed morphological analysis of all available specimens of the E. perdentatus complex. Our results indicate that species diversity of crested Eusirus is underestimated. Overall, DNA-based methods suggest that the E. perdentatus complex is composed of three putative species and that the E. giganteus complex includes four or five putative species. The morphological analysis of available specimens from the E. perdentatus complex corroborates molecular results by identifying two differentiable species, the genuine E. perdentatus and a new species, herein described as Eusirus pontomedon sp. nov.


PLoS ONE ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. e0190385 ◽  
Author(s):  
Hernán Alvarado-Sizzo ◽  
Alejandro Casas ◽  
Fabiola Parra ◽  
Hilda Julieta Arreola-Nava ◽  
Teresa Terrazas ◽  
...  

2008 ◽  
Vol 6 (3) ◽  
pp. 425-432 ◽  
Author(s):  
Héctor S. Vera Alcaraz ◽  
Weferson J. da Graça ◽  
Oscar A. Shibatta

Microglanis carlae, new species, is described from the río Paraguay basin and distinguished from its congeners by the following combination of characters: paired and anal fins mottled or with thin faint bands, trunk with dark-brown saddles, anterior margin of pectoral spine with serrations retrorse proximally and antrorse distally, tip of pectoral spine as a distinct bony point, continuous portion of lateral line reaching vertical through last dorsal-fin ray, caudal peduncle with irregularly shaped, faint to dark blotch, maxillary barbel surpassing vertical through dorsal-spine origin, and dark bar on posterior flank continuous from base of adipose fin to that of anal fin. The new species is included in the Microglanis parahybae species complex on the basis of color pattern.


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