Sporolithon yoneshigueae sp. nov. (Sporolithales, Corallinophycidae, Rhodophyta), a new rhodolith-forming coralline alga from the southwest Atlantic

Phytotaxa ◽  
2015 ◽  
Vol 224 (2) ◽  
pp. 140 ◽  
Author(s):  
Ricardo G. Bahia ◽  
Gilberto M. Amado-Filho ◽  
Gavin W. Maneveldt ◽  
Walter H. Adey ◽  
Gabriel Johnson ◽  
...  
Keyword(s):  
New Species ◽  
Genetic Divergence ◽  
Pore Diameter ◽  
Molecular Data ◽  
Southeastern Brazil ◽  
Coralline Alga ◽  
Southwest Atlantic ◽  
Alga Species ◽  
Herbarium Collections ◽  
A New Species

The aim of this study was to describe the new rhodolith-forming coralline alga species, Sporolithon yoneshigueae sp. nov., based on both morpho-anatomical and molecular data. Specimens were collected in rhodolith beds between 28 and 66 m depths in northeastern and southeastern Brazil. The new species can be distinguished from all other species of the genus Sporolithon by its wide tetrasporangial compartment pore diameter (35–43 µm) and the correspondingly large number (19–24) of rosette cells surrounding the tetrasporangial compartment pore. Phylogenies inferred from psbA and SSU markers support it as a new species within Sporolithon with interspecific genetic divergence varying from 8.86–10.94 %, and 3.67–4.63%, respectively. Observations from recent gathering and from herbarium collections show that specimens previously designated as Sporolithon mediterraneum in Brazil correspond to Sporolithon yoneshigueae.

A new karst dwelling species of the Gekko japonicus group (Squamata: Gekkonidae) from central Laos

Zootaxa ◽  
2017 ◽  
Vol 4263 (1) ◽  
pp. 179 ◽  
Author(s):  
VINH QUANG LUU ◽  
TRUONG QUANG NGUYEN ◽  
MINH DUC LE ◽  
MICHAEL BONKOWSKI ◽  
THOMAS ZIEGLER
Keyword(s):  
New Species ◽  
Genetic Divergence ◽  
Dorsal Surface ◽  
Morphological Characters ◽  
Molecular Data ◽  
Molecular Analyses ◽  
Hind Limbs ◽  
Gekko Japonicus ◽  
A New Species ◽  
Nd2 Gene

A new species of the Gekko japonicus group is described from Khammouane Province, central Laos, based on morphological characters and molecular data. Morphologically, Gekko nadenensis sp. nov. is differentiated from the remaining congeners by a combination of the following characters: size moderate (SVL 61.0–77.1 mm); nares bordered with rostral; internasals absent; postmentals enlarged; interorbital scales between anterior corners of the eyes 28–30; dorsal tubercles absent; ventral scales between mental and cloacal slit 175–185; midbody scale rows 123–140; ventral scale rows 38–40; subdigital lamellae on first toes 13–15, on fourth toes 14–16; finger and toe webbing present at base; tubercles on dorsal surface of fore and hind limbs absent; precloacal pores six (3+3 or 5+1) in a discontinuous row in males, absent in the female; postcloacal tubercles 1 or 2; tubercles absent on dorsal surface of tail base; subcaudals distinctly enlarged; dorsal surface of body with greyish brown blotches. Molecular analyses demonstrated the new species is closely related to G. bonkowskii and G. thakhekensis, but separated from them by approximately 7% in genetic divergence as shown by a fragment of the mitochondrial ND2 gene.

Taxonomic review of the slender mouse opossums of the “Parvidens” group from Brazil (Didelphimorphia: Didelphidae: Marmosops), with description of a new species

Zootaxa ◽  
2020 ◽  
Vol 4890 (2) ◽  
pp. 201-233
Author(s):  
CLAUDILÍVIA FERREIRA ◽  
ANA CRISTINA MENDES DE OLIVEIRA ◽  
LUAN GABRIEL LIMA-SILVA ◽  
ROGÉRIO VIEIRA ROSSI
Keyword(s):  
New Species ◽  
Molecular Data ◽  
Southeastern Brazil ◽  
Left Bank ◽  
Multivariate Statistical ◽  
Xingu River ◽  
Taxonomic Review ◽  
The North ◽  
Madeira River ◽  
A New Species

The genus Marmosops comprises small marsupials of the family Didelphidae (≤ 200 g), widely distributed in a variety of lowland rainforest and montane forest habitats, extending from Panama to southern Bolivia and southeastern Brazil. The smallest species of the genus are included in the “Parvidens” group, which includes M. pakaraimae, M. parvidens and M. pinheiroi. Although the monophyly of this group and species relationships are well defined, molecular studies have indicated that M. pinheiroi may represent a species complex, which has never been tested based on morphological analysis. In this study, we present the taxonomic review of M. pinheiroi based on the largest sample ever analyzed of this species. The external and craniodental morphology of 613 specimens of M. parvidens and M. pinheiroi from the northern, eastern, central and southern Brazilian Amazonia and northern Cerrado were examined. Besides, 28 craniodental dimensions were measured from adult specimens to support univariate and multivariate statistical analyses. Our results corroborate the validity of M. parvidens and indicate that M. pinheiroi is a complex formed by three species – M. pinheiroi (s. s.), distributed to the north of the Amazon River, from eastern Venezuela to the state of Amapá in Brazil; M. woodalli, which occurs east of the Xingu river and in the Marajó Island, state of Pará, extending to the east in the states of Tocantins and Maranhão; and a new species that occurs from the left bank of the Madeira River to the left bank of the Xingu River, herein described. Although the great morphometric similarity, species of the M. pinheiroi complex tended to be more different from each other than to M. parvidens in both univariate and multivariate analyses. Morphologically, these species may be positively distinguished by unique combinations of characters, such as dorsal and ventral fur coloration, arrangement of gray based hairs on the venter, supraoccipital shape, development of anterior and posterior portions of the M3 stylar shelf, continuity or not between the preprotocrista and anterior labial cingulum along the anterior margin of the upper molars, development of the metaconule in the upper molars, and number of cusps of the m4 talonid. The present work provides new perspectives for studies based on molecular data in order to test the species hypotheses recognized here and evaluate to what extent the Tapajós, Madeira, and Araguaia-Tocantins rivers actually isolate Marmosops populations. 

A new four-pored Amphisbaena (Squamata: Amphisbaenidae) from northeastern Brazil

Zootaxa ◽  
2018 ◽  
Vol 4514 (4) ◽  
pp. 553 ◽  
Author(s):  
JOÃO PAULO FELIX AUGUSTO DE ALMEIDA ◽  
MARCO ANTONIO DE FREITAS ◽  
MÁRCIO BORBA DA SILVA ◽  
MARIA CELESTE COSTA VALVERDE ◽  
MIGUEL TREFAUT RODRIGUES ◽  
...  
Keyword(s):  
New Species ◽  
16S Rrna ◽  
Genetic Divergence ◽  
Molecular Data ◽  
Northeastern Brazil ◽  
Mountain Range ◽  
Similar Species ◽  
Morphological And Molecular Data ◽  
Tail Tip ◽  
A New Species

A new species of Amphisbaena from the Espinhaço Mountain Range in Bahia State is described based on morphological and molecular data. Amphisbaena caetitensis sp nov. is a small four-pored amphisbaenian with 186–194 body annuli, 10–12 tail annuli, 16 dorsal and 19–22 ventral segments on a midbody annulus and a strikingly distinctive tail tip. The most similar species is A. uroxena, but they can be distinguished by some morphological features besides the genetic divergence of 7.65% on the mitochondrial 16S rRNA. 

A new species of Ischnocnema (Anura: Brachycephalidae) from the mountainous region of Atlantic Forest, southeastern Brazil, with a new phylogeny and diagnose for Ischnocnema parva series

Zootaxa ◽  
2021 ◽  
Vol 5082 (3) ◽  
pp. 201-222
Author(s):  
THIAGO SILVA-SOARES ◽  
RODRIGO BARBOSA FERREIRA ◽  
IAGO SILVA ORNELLAS ◽  
CÁSSIO Z. ZOCCA ◽  
ULISSES CARAMASCHI ◽  
...  
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Molecular Data ◽  
Amphibian Conservation ◽  
Southeastern Brazil ◽  
Antipredator Mechanisms ◽  
Microhabitat Preferences ◽  
New Diagnosis ◽  
A New Species ◽  
Montane Rainforest

We describe a new species of Rain Frog from Brazil’s Atlantic Forest, which harbors high richness, endemism and threatened species of anurans. Ischnocnema crassa sp. nov. is a leaf litter breeder from the montane rainforest of Santa Teresa, state of Espírito Santo, southeastern Brazil. Remarkably, the new species is so far unique amongst Ischnocnema for having moderate hand webbing between fingers. Ischnocnema crassa sp. nov. is the third species belonging to I. parva series and we present a new phylogeny based on molecular data and propose a new diagnosis for the series. We provide field and laboratory observations regarding amplexus, antipredator mechanisms, microhabitat preferences and conservation remarks.  Although Santa Teresa is one of the most sampled areas in Brazil, new species are often discovered. Santa Teresa is a priority for amphibian conservation because it harbors 109 species of anurans (9% of Brazil’s species).  

scholarly journals A new genus and new species of macronyssid mite (Mesostigmata: Gamasina: Macronyssidae) from Brazilian caves including molecular data and key for genera occurring in Brazil

Acarologia ◽  
2021 ◽  
Vol 61 (3) ◽  
pp. 501-526
Author(s):  
Brenda K. Gomes-Almeida ◽  
Almir R. Pepato
Keyword(s):  
New Species ◽  
Posterior Margin ◽  
New Genus ◽  
Large Subunit ◽  
Molecular Data ◽  
Southeastern Brazil ◽  
Sternal Gland ◽  
Dorsal Shield ◽  
Minas Gerais State ◽  
A New Species

A new genus and a new species of macronyssid mites is described based on material collected from caves in Minas Gerais state, Southeastern Brazil, and additional occurrences from caves in Rio de Janeiro (Southeast) and Pará (Eastern Amazon region). The new genus may be distinguished from other Macronyssidae genera by the combination of sternal shield with a distinct X-shaped area; sternal shield bearing three pairs of setae and two pairs of pores; sternal gland absent; anterior spur on coxa II lacking; adults with dorsal shield entire and j and J series complete; adults and protonymphs with setae J5 minute; males with strong-pores on dorsal shield and peritrema short extending from posterior margin of coxae II to the anterior margin of coxae IV. A key for genera occurring in Brazil is provided, as well sequences from the mitochondrial large subunit of ribosome (16S).

scholarly journals Molecular data reveal a new species of Rhopalias Stiles & Hassall, 1898 (Digenea, Echinostomatidae) in the Common opossum, Didelphis marsupialis L. (Mammalia, Didelphidae) in the Yucatán Peninsula, Mexico

ZooKeys ◽  
2019 ◽  
Vol 854 ◽  
pp. 145-163 ◽  
Author(s):  
Jorge López-Caballero ◽  
Rosario Mata-López ◽  
Gerardo Pérez-Ponce de León
Keyword(s):  
New Species ◽  
Genetic Divergence ◽  
Phylogenetic Analyses ◽  
Yucatan Peninsula ◽  
Molecular Data ◽  
Morphological Evidence ◽  
Data Set ◽  
Yucatán Peninsula ◽  
The Common ◽  
A New Species

A new species of Rhopalias Stiles & Hassall, 1898 is described from the small intestine of the Common opossum, Didelphismarsupialis Linnaeus from the Yucatán Peninsula, Mexico. Rhopaliasoochisp. nov. is morphologically very similar to the type species of the genus, Rhopaliascoronatus (Rudolphi, 1819) Stiles & Hassall 1898, a species widely distributed in opossums across Mexico. A molecular phylogenetic analysis using a mitochondrial gene (cox1), and the nuclear ribosomal internal transcribed spacer region (ITS1-5.8S-ITS2), of specimens of R.coronatus collected in several localities of Mexico revealed that those from the Yucatán Peninsula, originally recorded on morphological grounds as R.coronatus actually represented an independent genetic lineage. Maximum Likelihood and Bayesian Inference analyses were performed for each data set independently, and for the concatenated data set (ITS1-5.8S-ITS2 + cox1). All phylogenetic analyses showed that the specimens from Yucatán represented a monophyletic lineage, with high bootstrap support and Bayesian posterior probabilities. In addition, the genetic divergence estimated between R.oochisp. nov. and two species of Rhopalias, R.coronatus, and R.macracanthus Chandler, 1932 that also occur in Mexican marsupials ranged between 7–8% and 16–17%, for cox1, and between 0.1–0.2% and 7% for the ITS region, respectively. The molecular evidence gathered in this study (reciprocal monophyly in both phylogenetic analyses, and estimated genetic divergence) suggested that the specimens found in the intestine of D.marsupialis originally reported as R.coronatus from Yucatán, actually represent a new species. Morphological evidence was found through light and scanning electron microscopy to support the species distinction based on molecular data.

scholarly journals A new species of the genus Pareas (Squamata, Pareidae) from Yunnan, China

ZooKeys ◽  
2021 ◽  
Vol 1011 ◽  
pp. 121-138
Author(s):  
Shuo Liu ◽  
Dingqi Rao
Keyword(s):  
New Species ◽  
Genetic Divergence ◽  
Yunnan Province ◽  
Molecular Data ◽  
Cytb Gene ◽  
Number Of Species ◽  
A New Species

A new species of Pareas is described from Yunnan Province, China, based on morphological comparisons and molecular data. Genetically, the new species is most closely related to the recently-described Pareas geminatus, for which we present new topotypic findings. The genetic divergence (uncorrected p-distance) of the cytb gene between the new species and congeners ranged from 6.14% to 24.68%. Morphologically, the new species can be distinguished from P. geminatus and all other congeners. Our work brings the total number of species within the genus Pareas to 22.

A new species of butterfly (Lepidoptera: Nymphalidae) from the highlands of Southeastern Brazil

Zootaxa ◽  
2020 ◽  
Vol 4819 (1) ◽  
pp. 128-142
Author(s):  
EDUARDO P. BARBOSA ◽  
TAMARA M. C. AGUIAR ◽  
AUGUSTO H. B. ROSA ◽  
THAMARA ZACCA ◽  
ANDRÉ V. L. FREITAS
Keyword(s):  
New Species ◽  
High Altitude ◽  
Molecular Analysis ◽  
Molecular Data ◽  
Systematic Position ◽  
Southeastern Brazil ◽  
Immature Stages ◽  
Male And Female ◽  
Wet Grasslands ◽  
A New Species

A new species of the butterfly satyrine subtribe Euptychiina is described: Carminda surpresa sp. nov. This species is apparently restricted to high altitude wet grasslands in southeastern Brazil. The description is based on morphological features, mainly from the wings, and male and female genitalia, and molecular data were also obtained and are used to validate the new species. Information about the geographic distribution, habitat and immature stages morphology is also provided. The systematic position of C. surpresa sp. nov. is discussed based on a molecular analysis which includes all described species of Carminda in addition to other species of Satyrinae.

A new species of Aphanoblastella Kritsky, Mendoza-Franco and Scholz, 2000 (Monogenea, Dactylogyridae) parasitic on heptapterid catfish (Siluriformes) in the Neotropical region

2018 ◽  
Vol 63 (4) ◽  
pp. 772-780 ◽  
Author(s):  
Fabio H. Yamada ◽  
Aline A. Acosta ◽  
Priscilla de O. F. Yamada ◽  
Tomáš Scholz ◽  
Reinaldo J. da Silva
Keyword(s):  
New Species ◽  
Gene Sequence ◽  
Male Copulatory Organ ◽  
Accessory Piece ◽  
Copulatory Organ ◽  
Molecular Data ◽  
Neotropical Region ◽  
Fish Host ◽  
Southeastern Brazil ◽  
A New Species

Abstract Aphanoblastella magna n. sp. is described from the gills of the heptapterid catfish Pimelodella avanhandavae Eigenmann, 1917 in southeastern Brazil (Paraná River Basin). This new species most closely resembles Aphanoblastella chagresii Mendoza-Franco, Aguirre-Macedo and Vidal-Martínez, 2007 described from a congeneric fish host in Panama, but can be distinguished by the shape of the accessory piece and shape and size of the ventral and dorsal bars. From the other species of the genus, A. magna n. sp. differs mainly in the shape of the male copulatory organ (MCO), which is sinuous, versus spirally coiled in other species of the genus, except for A. travassosi (Price, 1938), and by the accessory piece which resembles a ‘shoehorn’. Aphanoblastella magna n. sp. is the seventh species of the genus and the first dactylogyrid described from P. avanhandavae. A partial 28S rDNA gene sequence of the new species is also provided; it forms a monophyletic clade with two congeners for which molecular data are available.

Dalechampia margarethiae (Euphorbiaceae), a New Species from Southeastern Brazil

2019 ◽  
Vol 44 (4) ◽  
pp. 832-837
Author(s):  
Rafaela Alves Pereira-Silva ◽  
Sarah Maria Athiê-Souza ◽  
André Laurênio de Melo ◽  
W. Scott Armbruster
Keyword(s):  
New Species ◽  
Southeastern Brazil ◽  
Espírito Santo ◽  
Floral Resin ◽  
Espirito Santo ◽  
A New Species

Abstract—A new species of Dalechampia from southeastern Brazil, belonging to Dalechampia sect. Dioscoreifoliae, is described and illustrated here. Dalechampia margarethiae is a twining vine occurring exclusively in Espírito Santo state. Its pseudanthia are similar to those of D. peckoltiana and D. pentaphylla, but D. margarethiae differs in a set of important characters, including having cylindrical, down-curved style tips, staminate flowers at anthesis having unreflexed sepals with stamens born on unelongated columns, whitish floral resin, and simple, entire, cordate leaves.

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