The Tonkin weakfish, Cynoscion similis (Sciaenidae, Perciformes), an endemic species of the Amazonas-Orinoco Plume

ABSTRACT Despite its importance in biogeographical, ecological, and commercial terms, the fish fauna of the northern Brazilian coast is still poorly known, representing the least sampled portion of the Brazilian Exclusive Economic Zone. We collected Tonkin weakfish, Cynoscion similis specimens during extensive surveys of the northern Brazilian coast and concluded that C. similis is common in this region. While the species had not previously been reported for the northern Brazilian state of Pará, it may have been recorded in studies of industrial fisheries, being identified only as Cynoscion sp. or by the common name pescada negra. This reinforces the need for the reliable taxonomical identification of species, to guarantee the collection of accurate data on ecology and fisheries, and ultimately, support the development of effective conservation strategies. Here we provide additional morphological and molecular data to distinguish Cynoscion similis from the closely related Cynoscion jamaicensis, and other congeners.

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DIVERSITY OF GRACILARIACEAE (RHODOPHYTA) IN BRAZIL: INTEGRATING MORPHOLOGICAL AND MOLECULAR DATA

Phytotaxa ◽

10.11646/phytotaxa.496.1.1 ◽

2021 ◽

Vol 496 (1) ◽

pp. 1-53

Author(s):

GOIA DE MATTOS LYRA ◽

JOSÉ MARCOS DE CASTRO NUNES ◽

EDILENE MARIA DOS SANTOS PESTANA ◽

JOÃO CARLOS GAMA DE MATOS ◽

TAIARA AGUIAR CAIRES ◽

...

Keyword(s):

Economic Value ◽

Molecular Data ◽

Tropical Species ◽

Brazilian Coast ◽

Type Specimens ◽

Mitochondrial Coi ◽

Dichotomous Key ◽

Identification Of Species ◽

Morphological And Molecular Data ◽

Selection Of Species

The Gracilariaceae comprises 242 mainly tropical species, including some with significant economic value for the food and pharmaceutical industry. Accurate taxonomy is crucial for the selection of species for cultivation. However, species identification is still challenging taxonomists. Nineteen species of Gracilariaceae have so far been referred to the Brazilian coast. We describe this diversity across approximately 32 degrees of latitude, using mitochondrial (COI-5P) and plastid (UPA and rbcL) markers in species delimitation analyses (ABGD and SPN). We provide phylogenetic (based on a concatenated three-genes tree and a taxa rich rbcL tree) and barcoding analyses from a broad and partially original collection combined with morphoanatomical data, including information resulting from analyses of type specimens and topotype material. We identified twenty-five specific entities occurring on the Brazilian coast, including four new species yet to be described. Spermatangial arrangements and aspects of thallus morphology were the most useful characters for species and genera delimitation, while characters based on the anatomy of the cystocarp overlap. Our morphological analyses demonstrate the lack of exclusive characters that justify the recently proposed Gracilariaceae infrafamilial categories, and therefore we use in this work the Gracilaria sensu lato genus concept. We provide descriptions, illustrations and a dichotomous key for the identification of species occurring in Brazil.

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Fensomea setacea, gen. & sp. nov. (Cladopyxidaceae, Dinophyceae), is neither gonyaulacoid nor peridinioid as inferred from morphological and molecular data

Scientific Reports ◽

10.1038/s41598-021-92107-0 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Marc Gottschling ◽

Maria Consuelo Carbonell-Moore ◽

Kenneth Neil Mertens ◽

Monika Kirsch ◽

Malte Elbrächter ◽

...

Keyword(s):

Molecular Data ◽

Character Evolution ◽

Ancestral State ◽

Close Relationship ◽

Regular Configuration ◽

The Common ◽

Morphological And Molecular Data ◽

Rrna Sequences

AbstractDinophyte evolution is essentially inferred from the pattern of thecal plates, and two different labelling systems are used for the important subgroups Gonyaulacales and Peridiniales. The partiform hypotheca of cladopyxidoid dinophytes fits into the morphological concepts of neither group, although they are assigned to the Gonyaulacales. Here, we describe the thecate dinophyte Fensomea setacea, gen. & sp. nov., which has a cladopyxidoid tabulation. The cells displayed a Kofoidean plate formula APC, 3′, 4a, 7″, 7C, 6S, 6′′′, 2′′′′, and slender processes were randomly distributed over the echinate or baculate surface. In addition, we obtained rRNA sequences of F. setacea, gen. & sp. nov., but dinophytes that exhibit a partiform hypotheca did not show a close relationship to Gonyaulacales. Character evolution of thecate dinophytes may have progressed from the ancestral state of six postcingular plates, and two more or less symmetrically arranged antapical plates, towards patterns of only five postcingular plates (Peridiniales) or more asymmetrical configurations (Gonyaulacales). Based on our phylogenetic reconsiderations the contact between the posterior sulcal plate and the first postcingular plate, as well as the contact between an antapical plate and the distalmost postcingular plate, do not represent a rare, specialized gonyaulacoid plate configuration (i.e., the partiform hypotheca of cladopyxidoid dinophytes). Instead, these contacts correspond to the common and regular configuration of peridinioid (and other) dinophytes.

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Gelidium guimaraesiae sp. nov. (Gelidiaceae, Rhodophyta) from the Western Atlantic segregated from G. floridanum by morphological and molecular evidence

Phytotaxa ◽

10.11646/phytotaxa.388.4.3 ◽

2019 ◽

Vol 388 (4) ◽

pp. 275 ◽

Cited By ~ 1

Author(s):

BEATRIZ BRUNELLI ◽

DANIELA MILSTEIN ◽

SUNG M. BOO ◽

MUTUE T. FUJII

Keyword(s):

Dna Sequences ◽

Sequence Divergence ◽

Molecular Data ◽

Brazilian Coast ◽

Molecular Evidence ◽

Similar Species ◽

Western Atlantic ◽

Gelidium Floridanum ◽

Morphological And Molecular Data ◽

A New Species

The Gelidium species are susceptible to a great phenotypic plasticity. In this genus, studies integrating morphological and molecular data have been increasingly used to define species. To date nine Gelidium species are reported along the Brazilian coast. Gelidium floridanum is the most frequently recorded species in Brazilian but it is also often confused with morphologically similar species, especially in the field or when reproductive structures are absent. In this study we analyzed specimens from Brazil previously identified as G. floridanum based on the morphological and molecular data (cox1 and rbcL DNA sequences). Newly collected specimens from Brazil showed a DNA sequence divergence from G. floridanum in the order of 1.0–1.4% for rbcL and 4.2% for cox1, enough to be considered a new species, here described as Gelidium guimaraesiae sp. nov.

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A taxonomic review of the genera Boonea, Chrysallida, Parthenina, Ivara, Fargoa, Mumiola, Odostomella and Trabecula (Gastropoda, Pyramidellidae, Odostomiinae) from Brazil

Zootaxa ◽

10.11646/zootaxa.2049.1.2 ◽

2009 ◽

Vol 2049 (1) ◽

pp. 39-66 ◽

Cited By ~ 6

Author(s):

ALEXANDRE DIAS PIMENTA ◽

RICARDO SILVA ABSALÃO ◽

CINTIA MIYAJI

Keyword(s):

New Species ◽

Molecular Data ◽

Brazilian Coast ◽

Similar Species ◽

New Combinations ◽

Taxonomic Review ◽

Lack Of Information ◽

Morphological And Molecular Data ◽

One New Species

The genera Boonea Robertson, 1978, Chrysallida Carpenter, 1856, Fargoa Bartsch, 1909, Ivara Dall & Bartsch, 1903, Mumiola A. Adams, 1863, Odostomella Bucquoy, Dautzenberg & Dollfus, 1883, Parthenina Bucquoy, Dautzenberg & Dollfus, 1883 and Trabecula Dall & Bartsch, 1909 from Brazil are reviewed. Boonea jadisi (Olsson & McGinty, 1958), Boonea seminuda (C. B. Adams, 1839), Chrysallida gemmulosa C. B. Adams, 1850, Ivara terryi (Olsson & McGinty, 1958), Fargoa bushiana Bartsch, 1909, Mumiola gradatula (Mörch, 1876) and Odostomella carceralis Pimenta, Absalão & Alencar, 2000 are confirmed to occur in Brazil. We also present the first records of Parthenina varia (Odé, 1993), Odostomella fonteini (Jong & Coomans, 1988) and Trabecula krumpermanni (Jong & Coomans, 1988) from the region, all, new combinations. Two species, previously reported from the Brazilian coast, could not be confirmed: Boonea bisuturalis (Say, 1822) and Boonea impressa (Say, 1822). Odostomella cf. doliolum (Philippi, 1844) and Parthenina cf. interspatiosa (Linden & Eikenboom, 1992), originally described from the eastern Atlantic, are here recorded from Brazil, although their status remains dubious because of lack of information on their biology and due to lack of morphological and molecular data. One new species is described: Boonea scymnocelata, which can be distinguished from the similar species B. seminuda by its smaller size and immersed protoconch, with no visible nucleus.

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Adenia barthelatii (Passifloraceae), a new endemic species of Mayotte and its phylogenetic status within the genus Adenia

Phytotaxa ◽

10.11646/phytotaxa.99.1.3 ◽

2013 ◽

Vol 99 (1) ◽

pp. 40 ◽

Cited By ~ 2

Author(s):

MARC PIGNAL ◽

ROXANA YOCKTENG ◽

DAVID J. HEARN ◽

JEAN-NOËL LABAT

Keyword(s):

New Species ◽

Endemic Species ◽

Morphological Characters ◽

Molecular Data ◽

Phylogenetic Status ◽

Morphological And Molecular Data ◽

A New Species

Morphological characters support the description of a new species of Passifloraceae from Mayotte Island: Adenia barthelatii M. Pignal, Yockteng, Hearn & Labat. Morphological and molecular data suggest that A. barthelatii belongs to the ‘warty-gland’ subclade of Clade V defined by Hearn elsewhere. Since the warty-gland clade is restricted to the Malagasy region we suggest a Malagasy origin of this Maorian species of Adenia.

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

Journal of Fungi ◽

10.3390/jof7090732 ◽

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.

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Phaeoclavulina liliputiana sp. nov. (Gomphaceae, Gomphales) a new endemic species from Tlaxcala, Mexico

Phytotaxa ◽

10.11646/phytotaxa.470.2.4 ◽

2020 ◽

Vol 470 (2) ◽

pp. 155-164

Author(s):

ASTRID GONZÁLEZ-ÁVILA ◽

CÉSAR RAMIRO MARTÍNEZ-GONZÁLEZ ◽

DAVID ESPINOSA ◽

ARTURO ESTRADA-TORRES

Keyword(s):

New Species ◽

Molecular Analysis ◽

Electron Micrographs ◽

Endemic Species ◽

Molecular Data ◽

Taxonomic Position ◽

Oak Forests ◽

Scanning Electron Micrographs ◽

Morphological And Molecular Data ◽

Scanning Electron

Phaeoclavulina liliputiana is a new endemic species from Tlaxcala, from the conifer and oak forests at an altitude of 2700 m asl, characterized by a very small basidiome size and, subellipsoid and usually more or less lacrymoid spores of 4.3–6.2 × 2.7–3.5 µm, with rounded warted ornamentation. We proposed this new species based on evidence from morphological and molecular data. We provide macro- and microscopic descriptions including illustrations of the basidiocarp, scanning electron micrographs of the basidiospores and also discuss the taxonomic position of this new species. We undertook a molecular analysis using the atp6 and SSU mitochondrial loci and nuclear ribosomal LSU.

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Demystifying the Capitella capitata complex (Annelida, Capitellidae) diversity by morphological and molecular data along the Brazilian coast

PLoS ONE ◽

10.1371/journal.pone.0177760 ◽

2017 ◽

Vol 12 (5) ◽

pp. e0177760 ◽

Cited By ~ 6

Author(s):

Camila F. Silva ◽

Victor C. Seixas ◽

Rômulo Barroso ◽

Maikon Di Domenico ◽

Antonia C. Z. Amaral ◽

...

Keyword(s):

Molecular Data ◽

Brazilian Coast ◽

Morphological And Molecular Data ◽

Capitella Capitata

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New populations of the rare subterranean blind cave eel Ophisternon candidum (Synbranchidae) reveal recent historical connections throughout north-western Australia

Marine and Freshwater Research ◽

10.1071/mf18006 ◽

2018 ◽

Vol 69 (10) ◽

pp. 1517 ◽

Cited By ~ 1

Author(s):

Glenn I. Moore ◽

William F. Humphreys ◽

Ralph Foster

Keyword(s):

Genetic Differentiation ◽

Western Australia ◽

Molecular Data ◽

Complete List ◽

Conservation Strategies ◽

Mining Activities ◽

Blind Cave ◽

Morphological And Molecular Data ◽

Management And Conservation ◽

North Western

The enigmatic blind cave eel Ophisternon candidum is one of Australia’s least known fishes and is one of only three vertebrates in Australia with an entirely subterranean existence. For more than half a century, O. candidum was thought to be restricted to some 100km of coastal cave systems in north-western Australia. Herein we report on two new populations, each separated by hundreds of kilometres, and provide the first complete list of all known records of subterranean Ophisternon in Western Australia. Using morphological and molecular data, we show that these populations are conspecific, with one population showing evidence of genetic differentiation. Geological and biogeographic explanations are explored, along with conservation considerations. All populations face actual and potential threats, especially from mining activities, and there is a need for management and conservation strategies specific to each population.

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Metacestodes of Elasmobranch Tapeworms in Octopus vulgaris (Mollusca, Cephalopoda) from Central Mediterranean—SEM and Molecular Data

Animals ◽

10.3390/ani10112038 ◽

2020 ◽

Vol 10 (11) ◽

pp. 2038

Author(s):

Perla Tedesco ◽

Monica Caffara ◽

Andrea Gustinelli ◽

Graziano Fiorito ◽

Maria Letizia Fioravanti

Keyword(s):

Molecular Data ◽

Taxonomic Resolution ◽

Octopus Vulgaris ◽

Tyrrhenian Sea ◽

Central Mediterranean ◽

The Common ◽

Morphological And Molecular Data ◽

Paratenic Hosts ◽

First Time

Cephalopods are intermediate/paratenic hosts in the life cycle of elasmobranch tapeworms, nevertheless most records of infection in this group of mollusks are outdated and fragmentary. The present work aimed to investigate the cestode fauna of the common octopus Octopus vulgaris from the Tyrrhenian Sea (Central Mediterranean). The parasitic stages were characterized by light and Scanning Electron Microscopy (SEM) and sequencing of 28S rDNA. Three cestode taxa were identified to the genus level: the onchoproteocephalidean Acanthobothrium sp. (prevalence 28%), the “tetraphyllidean” Anthobothrium sp. (prevalence 13%) and the trypanorhynch Nybelinia sp. (prevalence 3%). The remarkable prevalence observed for gastrointestinal cestodes highlight a possible important role of O. vulgaris in the transmission of elasmobranch tapeworms, particularly Onchoproteocephalideans. Furthermore, the present work provides, for the first time, detailed morphological (SEM) and molecular support to confirm the occurrence of Anthobothrium sp. in cephalopod hosts. In order to gain higher taxonomic resolution for the identified taxa, we stress the need to collect further morphological and molecular data of adult cestodes infecting their elasmobranch definitive hosts.

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