scholarly journals Magnolia sanchez-vegae, a new species of Magnoliaceae from northern Peru 

Phytotaxa ◽  
2014 ◽  
Vol 184 (5) ◽  
pp. 290
Author(s):  
José Luis Marcelo Peña ◽  
MARIO TOMAZELLO FILHO
Keyword(s):  
New Species ◽  
South America ◽  
The Family ◽  
Northern Peru ◽  
A New Species

The family Magnoliaceae Jussieu (1789: 280) in South America includes a total of 50 species. Thirty species are listed for Colombia, ten for Ecuador, eight for Peru, three each for Brazil and Venezuela, and one for Bolivia (Lozano-Contreras, 1994; Nee, 1994; Dillon & Sanchez, 2009; Arroyo & Pérez 2013; Marcelo-Peña & Arroyo 2013; Vázquez et al. 2013). The following species are currently known to occur in Peru: Magnolia rimachii (Lozano 1994: 104) Govaerts (1996: 71), M. amazonica (Ducke 1915: 11) Govaerts (1996: 70), M. bankardiorum Dillon & Sánchez-Vega (2009: 7), M. jaenensis Marcelo-Peña (2013: 110), M. manguillo Marcelo-Peña & Arroyo (2013: 113), M. elfina Vázquez (2012: 100), M. gentryi Vázquez (2012: 104) and M. peruviana Vázquez.(2012: 117).

A new synanthropic species of Charinus Simon, 1892 from Brazilian Amazonia and notes on the genus (Arachnida: Amblypygi: Charinidae)

Zootaxa ◽  
2011 ◽  
Vol 2980 (1) ◽  
pp. 61 ◽  
Author(s):  
GUSTAVO SILVA DE MIRANDA ◽  
ALESSANDRO PONCE DE LEÃO GIUPPONI
Keyword(s):  
New Species ◽  
South America ◽  
New Records ◽  
First Record ◽  
Brazilian Amazonia ◽  
Brazilian Species ◽  
Synanthropic Species ◽  
The Family ◽  
Porto Velho ◽  
A New Species

A new species of the genus Charinus—C. vulgaris— is described from Porto Velho, Rondônia. This is the first record of the family Charinidae from the Brazilian Amazonia and of a synanthropic species in South America. Additionally, two new records of the genus for Brazil are made and a key to the Brazilian species of the genus is given.

A new species of Loimopapillosum Hargis, 1955 (Monogenea: Monocotylidae) parasitizing Hypanus dipterurus (Myliobatiformes: Dasyatidae) off the Pacific coast of South America, and its phylogenetic relationships

2021 ◽  
Vol 95 ◽  
Author(s):  
J.D. Chero ◽  
C.L. Cruces ◽  
G. Sáez ◽  
A.G.L. Oliveira ◽  
C.P. Santos ◽  
...  
Keyword(s):  
New Species ◽  
South America ◽  
Pacific Coast ◽  
Male Copulatory Organ ◽  
Phylogenetic Analyses ◽  
Copulatory Organ ◽  
The Pacific ◽  
Northern Peru ◽  
A New Species ◽  
Single Testis

Abstract A new species of Loimopapillosum Hargis, 1955 is described based on specimens collected from the gills of the diamond stingray, Hypanus dipterurus (Jordan & Gilbert, 1880) (Myliobatiformes: Dasyatidae) captured off Puerto Pizarro, Tumbes Region, northern Peru. Loimopapillosum pascuali n. sp. is distinguished mainly from the type and only species, Loimopapillosum dasyatis Hargis, 1955, by its funnel-shaped male copulatory organ, with an asymmetrical base; the superficial root of the anchor with distal knobs; the deep root of the anchor with a constriction at its base; a single testis; and the number of head organs. Available sequences for members of Monocotylidae in the GenBank as well as partial sequences for the gene 28S and 18S ribosomal DNA from L. pascuali n. sp. were included in phylogenetic analyses, suggesting that Loimoinae (represented in this study by L. pascuali n. sp. and Loimosina sp.) is nested within the Monocotylidae Taschenberg, 1879. Therefore, we confirm the rejection of Loimoidae Price, 1936 and its reincorporation as a subfamily of Monocotylidae, as previously suggested. Loimopapillosum pascuali n. sp. represents the first species of this genus in South America.

A new species and two new records of the ground spider genus Apopyllus (Araneae, Gnaphosidae) from Paraguay

Zootaxa ◽  
2019 ◽  
Vol 4664 (4) ◽  
pp. 594-600
Author(s):  
YOLANDA M. G. PIÑANEZ ESPEJO ◽  
JOHN A. KOCHALKA ◽  
BOLÍVAR R. GARCETE BARRETT
Keyword(s):  
New Species ◽  
South America ◽  
New Records ◽  
Southern Mexico ◽  
External Appearance ◽  
Southern South America ◽  
Distribution Ranges ◽  
The Family ◽  
Small Genus ◽  
A New Species

The family Gnaphosidae consist of 158 genera and 2530 species worldwide. In South America there are 35 genera (World Spider Catalog 2019) considering Apopyllus Platnick & Shadab, 1984, a small genus of ground hunting spiders (Cardoso et al. 2011) that includes ten American species, of which eight have been recorded from southern South America. Their known distribution ranges from southern Mexico through Colombia, Bolivia, Perú, Chile, Brazil and Argentina (World Spider Catalog 2019). In Paraguay, the genus was first mentioned in an invertebrate checklist (see Kochalka et al. 1996). First studies on the genus and its taxonomic placement were made by Platnick & Shadab (1984), and more recently a revision of the genus was undertaken by Azevedo et al. (2016), including four new Brazilian species. Even though the external appearance of Apopyllus is similar to other gnaphosids, specifically taking into consideration the Echemus group, spiders with plain colored abdomens, sometimes presenting chevrons in the opisthosoma, and with developed scutum in males (Murphy 2007), females and males can be differentiated by the more elaborated and intricated genitalia structures (see Azevededo et al. 2016). Apopyllus is most similar to Apodrassodes Vellard, 1924 both having a similar elongate embolus (Fig. 3e) and a membranous tegular extension (Fig. 3d) (Platnick & Shadab 1984), and to the genera Nopyllus Ott, 2014, but differ from the later by the presence of a scutum (Fig. 3a) in males and by the presence of a median apophysis (Fig. 3e) on the bulb (Ott, 2014). 

Phylogenetic systematics of Tertiary monophorasterid sand dollars (Clypeasteroida: Echinoidea) from South America

2000 ◽  
Vol 74 (2) ◽  
pp. 263-281 ◽  
Author(s):  
Rich Mooi ◽  
Sergio Martínez ◽  
Sara G. Parma
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
South America ◽  
Phylogenetic Systematics ◽  
South American ◽  
The South ◽  
Parsimonious Tree ◽  
The Family ◽  
Sand Dollars ◽  
A New Species

Sand dollars in the Monophorasteridae Lahille, 1896, form an important part of the South American Cenozoic echinoid fauna. Re-examination of type and other material adds significantly to our knowledge of the morphology and taxonomy of the family, and shows that besides Monophoraster darwini (Desor, 1847), M. duboisi (Cotteau, 1884), Amplaster coloniensis Martínez, 1984, and A. alatus Rossi de Garcia and Levy, 1989, there is a new species, A. ellipticus. We also show that Karlaster Marchesini Santos, 1958, is not a monophorasterid as once thought. A phylogenetic analysis of 24 characters assessed from all species of Monophoraster Lambert and Thiéry, 1921, and Amplaster Martínez, 1984, along with genera of the Mellitidae Stefanini, 1912, produced a single most parsimonious tree. The analysis demonstrates monophyly of mellitids and monophorasterids, and that Iheringiella Berg, 1898, should be excluded from the latter. Although both Monophoraster Lambert and Thiéry, 1921, and Amplaster Martínez, 1984, retain many features of an ancestor in common with the Mellitidae Stefanini, 1912, they also exhibit bizarre morphologies quite different from those of mellitids. The study has also resulted in a clearer picture of the biogeography and biostratigraphy of the Monophorasteridae, and their great significance in the evolution of lunulate sand dollars in the Americas.

scholarly journals Description of a second South American species in the Malagasy earwig genus Mesodiplatys from a cave habitat, with notes on the definition of Haplodiplatyidae (Insecta, Dermaptera)

ZooKeys ◽  
2018 ◽  
Vol 790 ◽  
pp. 87-100 ◽  
Author(s):  
Yoshitaka Kamimura ◽  
Rodrigo L. Ferreira
Keyword(s):  
New Species ◽  
South America ◽  
South American ◽  
South American Species ◽  
The Family ◽  
Definition Of ◽  
Cave Habitat ◽  
A New Species

The genusMesodiplatys(Dermaptera: Diplatyidae) comprises eight species from Madagascar and one species from Peru. Based on a sample collected from a cave in Brazil, a new species of this genus,MesodiplatysfalciferKamimura,sp. n., is described as the second species from South America. Based on a reexamination of the holotype ofMesodiplatysinsularis, a revised key toMesodiplatysspecies is provided. The definitions of the generaMesodiplatysandHaplodiplatysand the family Haplodiplatyidae are also reconsidered.

scholarly journals Brittle stars from the Lower Cretaceous of Patagonia: first ophiuroid articulated remains for the Mesozoic of South America

2019 ◽  
Vol 46 (2) ◽  
pp. 421
Author(s):  
Diana Fernández ◽  
Luciana Giachetti ◽  
Sabine Stöhr ◽  
Ben Thuy ◽  
Damián Pérez ◽  
...  
Keyword(s):  
New Species ◽  
South America ◽  
Lower Cretaceous ◽  
Height Ratio ◽  
Taxonomic Analysis ◽  
The Poor ◽  
The Family ◽  
Extinct Genus ◽  
A New Species

The first articulated remains of ophiuroids for the Mesozoic of South America are described from the Lower Cretaceous of Neuquén Basin, Argentina. The taxonomic analysis allows the assignment of the material described herein to the extinct genus Ophiopetra. The specimens belong to a new species, but considering the poor preservation, a new name is not introduced, as it would be based on an incomplete diagnosis. Certain characteristics (e.g., the diameter of the disc, the width/height ratio of the vertebrae) suggest that these ophiuroids are paedomorphic specimens. In light of the latest classification of the Ophiuroidea, and new insights on the spine articulation microstructure of Ophiopetra lithographica presented herein, a transfer of Ophiopetra to the family Ophionereididae within the order Amphilepidida is proposed. This material expands the palaeogeographic record of this genus, since it represents the first remains of Ophiopetra described in the Southern Hemisphere. It is also the first Cretaceous record of the genus worldwide.

A new acaremyid rodent (Hystricognathi: Octodontoidea) from the middle Miocene of Patagonia (South America) and considerations on the early evolution of Octodontoidea

Zootaxa ◽  
2013 ◽  
Vol 3616 (2) ◽  
pp. 119-134 ◽  
Author(s):  
MICHELLE ARNAL ◽  
MARÍA E. PÉREZ
Keyword(s):  
New Species ◽  
South America ◽  
Middle Miocene ◽  
Phylogenetic Analyses ◽  
Early Evolution ◽  
Systematic Analysis ◽  
Late Middle Miocene ◽  
The Family ◽  
Caviomorph Rodents ◽  
A New Species

Octodontoidea is the most speciose and ecologically diverse superfamily of caviomorph rodents. The systematic relation-ships of modern octodontoids is moderately accepted, however, the relationships of fossils (from the Eocene?–middle Miocene) are not clear. In recent years the hypothesis of a complex early evolution of the superfamily has emerged, with “basal octodontoids” representing different evolutionary lineages. The extinct family Acaremyidae may represent one such lineage, consisting of the genera Acaremys, Sciamys, Galileomys, and variably Platypittamys. In this work we de-scribe a new octodontoid rodent recorded in post-Colloncuran? levels exposed at the locality of El Petiso, Northwest of Chubut Province, Argentina. Based on a systematic analysis of dental characters, we conclude that the new specimens correspond to a new species of Sciamys. Additionally, if the post-Colloncuran age for El Petiso is verified, the new species will extend the temporal range of the family Acaremyidae until, at least, the late middle Miocene, as well as the temporal range for the genus Sciamys from the Santacrucian SALMA. Our phylogenetic analyses corroborate the position of the new species as a member of Sciamys, and confirm that Acaremyidae represents an extinct family from Patagonian South America that lived until the middle Miocene. Massoiamys obliquus qualifies as morphological ancestor that pre-announc-es the octodontiform tooth pattern of octodontids. Thus, the octodontiform tooth pattern appears at least twice within the superfamily Octodontoidea.

A new marine alga, Pterocladiella andresii sp. nov. (Gelidiales, Rhodophyta) and its relationship to P. caloglossoides from Pacific South America

Phytotaxa ◽  
2017 ◽  
Vol 319 (2) ◽  
pp. 139 ◽  
Author(s):  
GA HUN BOO ◽  
MARTHA S. CALDERON ◽  
SUNG MIN BOO
Keyword(s):  
New Species ◽  
South America ◽  
Marine Alga ◽  
Original Description ◽  
Mitochondrial Cox1 ◽  
Northern Peru ◽  
Morphological Differences ◽  
A New Species ◽  
Rbcl Sequences

The taxonomy of Pterocladiella from Pacific South America remains less studied. On the basis of morphological observations and mitochondrial cox1 and plastid rbcL sequences, we describe a new species, P. andresii, from Chile and characterize recently collected specimens of P. caloglossoides from Peru, the first verified since Howe’s original collections of the type. Pterocladiella andresii is distinguished by small turfs of simple, narrow, compressed thalli that are rarely irregularly branched, and possess rhizines in the medulla, tetrasporangial sori with sterile a margin, and v-shaped to irregularly arranged tetrasporangia. New collections of Pterocladiella caloglossoides from northern Peru accord well with its original description. Both cox1 and rbcL phylogenies revealed that P. andresii was sister to P. caloglossoides from Peru, and this group formed a clade with P. luxurians from California, USA. Morphological differences among P. andresii and its putative relatives are presented.

A Synopsis of Dicliptera (Acanthaceae) in Brazil, with the Description of Two New Species

2020 ◽  
Vol 45 (2) ◽  
pp. 340-348
Author(s):  
James Lucas da Costa-Lima ◽  
Earl Celestino de Oliveira Chagas
Keyword(s):  
New Species ◽  
South America ◽  
The State ◽  
Northeastern Brazil ◽  
Mato Grosso ◽  
The North ◽  
New Synonyms ◽  
Two New Species ◽  
Mato Grosso Do Sul ◽  
A New Species

Abstract—A synopsis of Dicliptera (Acanthaceae) for Brazil is presented. Six species are recognized: Dicliptera ciliaris, D. sexangularis, and D. squarrosa, widely distributed in South America; D. purpurascens, which ranges from the North Region of Brazil (in the state of Acre) to eastern Bolivia; D. gracilirama, a new species from the Atlantic Forest of northeastern Brazil; and D. granchaquenha, a new species recorded in dry and semideciduous forests in Bolivia and western Brazil, in the state of Mato Grosso do Sul. Furthermore, we propose new synonyms and designate lectotypes for eleven names. An identification key to the six accepted Dicliptera species in Brazil is provided.

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