Ultrastructure and distribution of Urosolenia obesa sp. nov. (Rhizosoleniaceae, Diatomeae) in reservoirs from southern Brazil

Phytotaxa ◽  
2013 ◽  
Vol 125 (1) ◽  
pp. 1 ◽  
Author(s):  
PRISCILA I. TREMARIN ◽  
EDUARDO G. FREIRE ◽  
THELMA A. V. LUDWIG
Keyword(s):  
New Species ◽  
Light Microscopy ◽  
Geographic Distribution ◽  
The Other ◽  
Similar Species ◽  
Southern Brazil ◽  
Oblique Angle ◽  
Microscopy Analysis ◽  
Light Microscopy Analysis ◽  
Planktonic Species

A new planktonic species of Urosolenia is described from Southern Brazilian reservoirs. Urosolenia obesa sp. nov. was found in several studied samples and the unique set of features led us to propose it as new and to compare their morphology with similar species found in the literature, as Rhizosolenia  naui, R. eriensis var. pusilla and Urosolenia parva. Urosolenia obesa differs from the other species mainly by sub-cylindrical frustules, conical valves, calyptra straight, positioned in right to oblique angle in relation to pervalvar axis, ornamented by longitudinal ribs and ending in two teeth and one ligula. Probably, the new species has a wider geographic distribution, since the small size and slightly silicified frustules make it difficult to visualize them by light microscopy analysis of samples.

scholarly journals New species and new record of anthomedusae from southern Brazil

1966 ◽  
Vol 15 (1) ◽  
pp. 85-89 ◽  
Author(s):  
M. Vannucci ◽  
M. G. B. Soares Moreira
Keyword(s):  
New Species ◽  
Coastal Waters ◽  
New Record ◽  
Sexual Maturity ◽  
Water Mass ◽  
The Other ◽  
Similar Species ◽  
Southern Brazil ◽  
The Family ◽  
A New Species

A new species of Hydromedusa belonging to the genus Octocanna Haeckel 1879, here revived, is described from the coastal waters off Santos. The new species belongs to the family Phialuciidae, it is named Octocanna haeckeli sp. n. and differs from the other two species of the genus in being smaller, in having a high dome shaped umbrella, four tentacles, eight bulbs and eight marginal vesicles at sexual maturity. The genus Octocanna is here revived for Phialuciidae with eight radial canals, eight gonads, four or more tentacles and never more than four lips. The genus Octophialucium Kramp 1955 is considered valid for Phialuciidae with eight radial canals, eight gonads and eight lips. In the same series of samples, some specimens of Octophialucium bigelowi Kramp 1955 were taken which are very similar to Octocanna haeckeli but have eight lips, eight tentacles, rudimentary bulbs and a larger number of marginal vesicles at sexual maturity, which is reached at approximately the same umbrella size. The two similar species were taken in the same water mass at approximately the same time of the same year.

Lathyrus ibicuiensis (Fabaceae, Faboideae), a new species endemic to Southern Brazil

Phytotaxa ◽  
2015 ◽  
Vol 204 (1) ◽  
pp. 91
Author(s):  
Maria de Lourdes Abruzzi Aragão de Oliveira ◽  
SILVIA T.S. MIOTTO ◽  
JOÃO R.V. IGANCI
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Protected Area ◽  
Similar Species ◽  
Southern Brazil ◽  
A New Species

A new species of Lathyrus is described. This species occurs in rocky fields, in a restricted protected area from Southern Brazil. Lathyrus ibicuiensis resembles L. linearifolius in having simple tendrils, but differs in ovate to lanceolate stipules, by ramified branches, and by elliptic, oblong to rarely obovate leaflets, as well as in its geographic distribution. A description and illustration are provided together with a key for identification of similar species occurring in Southern Brazil.

Monteiroa rubra (Malvaceae: Malvoideae), a New Species Endemic to the Southern Brazilian Grasslands

2019 ◽  
Vol 44 (4) ◽  
pp. 851-856
Author(s):  
Martin Grings ◽  
Sérgio Augusto de Loreto Bordignon ◽  
Ilsi Iob Boldrini
Keyword(s):  
New Species ◽  
Rio Grande ◽  
The Other ◽  
Morphological Description ◽  
Similar Species ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Distribution Map ◽  
A New Species ◽  
Iucn Criteria

Abstract—Monteiroa rubra is described as a remarkable new species from Rio Grande do Sul, Brazil. It is notably distinct from the other ten species of Monteiroa. The new species is morphologically most similar to the four species of the genus with unlobed leaves that also lack cordate leaf bases. Monteiroa rubra apparently is an endemic species known from three localities in wetlands associated with grasslands in Augusto Pestana and Fontoura Xavier municipalities in southern Brazil. A morphological description, distribution map, photographs, ecological notes, and a key to morphologically most similar species are presented. According to IUCN criteria, if a formal assessment were performed, the new species would probably be considered Endangered.

Synopsis of Cnidoscolus (Euphorbiaceae) in midwestern Brazil, including taxonomic updates, a new species, and a reestablishment of C. neglectus

Phytotaxa ◽  
2021 ◽  
Vol 500 (3) ◽  
pp. 179-200
Author(s):  
CELLINI CASTRO DE OLIVEIRA ◽  
ANDRÉ LAURÊNIO DE MELO ◽  
MARCOS JOSÉ DA SILVA
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Conservation Status ◽  
Systematic Position ◽  
The Other ◽  
Dichotomous Key ◽  
Distributional Information ◽  
A New Species

A synopsis of the genus Cnidoscolus is presented for the midwestern region of Brazil, which resulted from the analysis of about 1,200 specimens from 62 national and foreign herbaria, including type collections. Observations of populations in field were also made. Nine species are recognized, one of which, C. mcvaughii, is new to science. It is described and illustrated, and comments about its geographic distribution, morphological relationships, systematic position, phenology, and conservation status are provided, as well as images and a map. The other species are contrasted by a dichotomous key. Also, distributional information, maps, conservation evaluations, images and morphologically diagnoses are included. Eight synonymizations, one lectotypification, a neotypifcation, and the re-establishment of C. neglectus are proposed.

On the taxonomy of the genus Sidonis Mulsant, stat. nov. (Coleoptera: Coccinellidae: Chnoodini) with descriptions of new species from Brazil

Zootaxa ◽  
2017 ◽  
Vol 4350 (3) ◽  
pp. 500
Author(s):  
JULISSA M. CHURATA-SALCEDO ◽  
LUCIA M. ALMEIDA ◽  
GUILLERMO GONZÁLEZ ◽  
ROBERT D. GORDON
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Similar Species ◽  
Diagnostic Characters ◽  
Generic Status ◽  
Two New Species

The subgenus Sidonis Mulsant, 1850 is elevated to generic status and two new species from Brazil are described and illustrated: Sidonis bira sp. nov. and Sidonis biguttata sp. nov. New geographic distribution records are provided. In addition, lectotypes of Sidonis consanguinea (Mulsant, 1850) and S. guttata (Sicard, 1912) are designated. Illustrations of diagnostic characters from five of six species of the genus, comments on the differences from similar species and a key to all recognized taxa are included.  

scholarly journals A new species of Amphisbaena (Squamata: Amphisbaenidae) from the Orinoquian region of Colombia

2021 ◽  
Vol 71 ◽  
pp. 55-74
Author(s):  
Juan José Torres-Ramírez ◽  
Teddy Angarita-Sierra ◽  
Mario Vargas-Ramírez
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
Phylogenetic Analyses ◽  
Similar Species ◽  
General Knowledge ◽  
Southern Brazil ◽  
Base Pairs ◽  
Northern South America ◽  
Great Genetic Distance ◽  
A New Species

In northern South America, amphisbaenians are rarely seen among the herpetofauna.Thus, general knowledge about them is very poor. During a herpetological survey in 2012 at Casanare, Colombia, we found two specimens of an unusual Amphisbaena. A third specimen sharing the same morphotype labeled Amphisbaena sp. from Vichada department was found deposided in an Colombian reptile collection. Based on morphological analyses together with phylogenetic analyses of 1029 base pairs of the mitochondrial DNA (mtDNA), we describe a new species of Amphisbaena that inhabits in the Orinoquian region of Colombia. The new species is part of a phylogenetic clade together with A. mertensii and A. cunhai (central-southern Brazil), exhibiting a great genetic distance (26.1–28.9%) between the newly identified lineage versus those taxa, and versus the sympatric taxa A. alba and A. fuliginosa. Morphologically, this new Amphisbaena can be distinguished from their congeners by characters combination of number of preocloacal pores, absence of malar scale, postgenial scales and body and caudal annuli counts. Amphisbaena gracilis is on morphology grounds the most similar species. However, the new species can be distinguished from it by having higher body annuli counts, angulus ories aliegned with the edges of the ocular scales and center of frontal scales, less number of large middorsal segments of the first and second body annulus, and rostral scale visible from above. The description of this new Amphisbaena species points out the urgent need to increase the knowledge of worm lizards in Colombia

A new species of Pherania Strand, 1942 from southern Brazil (Arachnida: Opiliones: Gonyleptidae)

Zootaxa ◽  
2003 ◽  
Vol 363 (1) ◽  
pp. 1 ◽  
Author(s):  
ADRIANO B. KURY
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Type Species ◽  
Southern Brazil ◽  
Santa Catarina ◽  
Coastal Island ◽  
New Diagnosis ◽  
A New Species ◽  
Santa Catarina State

Pherania giupponii sp. nov. is herein described from a coastal island in Santa Catarina state, southern Brazil. The genus Pherania Strand, 1942, was hitherto monotypic and the type species, Pherania pygmaea (Sørensen, 1932), is known from the nearby mainland. A new diagnosis is given to Pherania and the geographic distribution of the two species is illustrated on a map.

A new species of the genus Hypogastrura from coastal wetlands of East China (Collembola: Hypogastruridae)

Zootaxa ◽  
2007 ◽  
Vol 1630 (1) ◽  
pp. 63-68 ◽  
Author(s):  
JIGANG JIANG ◽  
BOPING TANG ◽  
JIAN-XIU CHEN
Keyword(s):  
New Species ◽  
Coastal Wetlands ◽  
The Other ◽  
East China ◽  
Similar Species ◽  
Antennal Sensilla ◽  
Foot Structure ◽  
Thoracic And Abdominal ◽  
A New Species

A new species, Hypogastrura sheyangensis, from East China is described. It belongs to H. manubrialis group of species within the genus and is easily separated from the other members of the group by a combination of characters, foot structure, furca, antennal sensilla, thoracic and abdominal chaetotaxy. A comparison is made between the new species, other species of Hypogastrura known from China and three other similar species in the genus.

Tillandsia leucopetala, a new species of Bromeliaceae from Rio Grande do Sul, southern Brazil

Phytotaxa ◽  
2015 ◽  
Vol 202 (2) ◽  
pp. 143 ◽  
Author(s):  
Henrique Mallmann Büneker ◽  
Rodrigo Corrêa Pontes ◽  
Leopoldo Witeck-Neto ◽  
Kelen Pureza Soares
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Rio Grande ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Distribution And Ecology ◽  
A New Species

Tillandsia leucopetala H. Büneker, R. Pontes & L. Witeck is an endemic saxicolous new species from Rio Grande do Sul, southern Brazil. It is described, illustrated and data about its geographic distribution and ecology are provided.

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