Magosternarchus, a New Genus with Two New Species of Electric Fishes (Gymnotiformes: Apteronotidae) from the Amazon River Basin, South America

Copeia ◽  
1996 ◽  
Vol 1996 (3) ◽  
pp. 657 ◽  
Author(s):  
John G. Lundberg ◽  
Cristina Cox Fernandes ◽  
James Spurling Albert ◽  
Marcelo Garcia
Keyword(s):  
New Species ◽  
South America ◽  
River Basin ◽  
New Genus ◽  
Amazon River ◽  
Amazon River Basin ◽  
Two New Species ◽  
Electric Fishes

scholarly journals Revision of Tympanopleura Eigenmann (Siluriformes: Auchenipteridae) with description of two new species

2015 ◽  
Vol 13 (1) ◽  
pp. 1-46 ◽  
Author(s):  
Stephen J. Walsh ◽  
Frank Raynner Vasconcelos Ribeiro ◽  
Lúcia Helena Rapp Py-Daniel
Keyword(s):  
New Species ◽  
River Basin ◽  
The Body ◽  
Junior Synonym ◽  
Amazon River ◽  
Middle Portion ◽  
Amazon River Basin ◽  
Two New Species ◽  
Gas Bladder ◽  
Adult Body

The Neotropical catfish genus Tympanopleura, previously synonymized within Ageneiosus, is revalidated and included species are reviewed. Six species are recognized, two of which are described as new. Tympanopleura is distinguished from Ageneiosus by having an enlarged gas bladder not strongly encapsulated in bone; a prominent pseudotympanum consisting of an area on the side of the body devoid of epaxial musculature where the gas bladder contacts the internal coelomic wall; short, blunt head without greatly elongated jaws; and smaller adult body size. Species of Tympanopleura are distinguished from each other on the basis of unique meristic, morphometric, and pigmentation differences. Ageneiosus melanopogon and Tympanopleura nigricollis are junior synonyms of Tympanopleura atronasus. Tympanopleura alta is a junior synonym of Tympanopleura brevis. A lectotype is designated for T. brevis. Ageneiosus madeirensis is a junior synonym of Tympanopleura rondoni. Tympanopleura atronasus, T. brevis, T. longipinna, and T. rondoni are relatively widespread in the middle and upper Amazon River basin. Tympanopleura cryptica is described from relatively few specimens collected in the upper portion of the Amazon River basin in Peru and the middle portion of that basin in Brazil. Tympanopleura piperata is distributed in the upper and middle Amazon River basin, as well as in the Essequibo River drainage of Guyana.

scholarly journals Neotropical Monogenoidea. 3. Five new species from South America with the proposal of Tereancistrum gen. n. and Trinibaculum gen. n. (Dactylogyridae: Ancyrocephalinae)

1980 ◽  
Vol 10 (2) ◽  
pp. 411-417 ◽  
Author(s):  
Delane C. Kritsky ◽  
Vernon E. Thatcher ◽  
Robert J. Kayton
Keyword(s):  
New Species ◽  
South America ◽  
River Basin ◽  
Freshwater Fishes ◽  
Amazon River ◽  
New Genera ◽  
Amazon River Basin

Abstract Five new species of Monogenoidea (Dactylogyridae: Ancyrocephalinae) are described from the gills of freshwater fishes of South America: Jainus amazonensis sp. n., Tereancistrum kerri gen. et sp. n., and Trlnibaculum braziliensis gen. et sp. n. (all) from Brycon melanopterus (Cope), Januacá Lake near Manaus, Amazonas, Brasil; Tereancistrum ornatus sp. n. from Prochilodus reticulatus Steindachner, Rio Cauca, Juanchito, Cali, Valle, Colombia; and T. parvus sp. n. from Leporinus fasciatus (Bloch), Amazon River Basin. Two new genera are proposed. Tereancistrum gen. n. is characterized by having spathulate acessory anchor sclerites associated with the ventral anchors. Trinibaculum gen. n. is proposed for species with a single ventral bar, two widely separated dorsal bars, a dextroventral vagina, confluent intestinal crura, and intercecal gonads.

Parakari a New Genus of the Family Baetidae (Insecta: Ephemeroptera) from Guyana Highlands

Zootaxa ◽  
2011 ◽  
Vol 3032 (1) ◽  
pp. 47 ◽  
Author(s):  
CAROLINA NIETO ◽  
TOMÁŠ DERKA
Keyword(s):  
New Species ◽  
South America ◽  
New Genus ◽  
The Other ◽  
Obtuse Angle ◽  
Diverse Families ◽  
The Family ◽  
Two New Species ◽  
High Level ◽  
Table Mountains

Baetidae is one of the most diverse families of Ephemeroptera. In South America this family now encompasses 27 genera and more than 130 species. The Guyana region is known for its extraordinary diversity and high level of endemism, which is, above all, remarkable at the tops of the isolated flat-topped table mountains – tepuis. Recently various international speleological expeditions to Churí-tepui explored the cave systems of this mountain. Here we describe a new genus of Baetidae recently found during the mentioned expeditions to Churí-tepui and Auyán-tepui. Parakari n. gen. can be distinguish from the other genera of this family, among other characters, in the nymphs by the absence of abdominal gills I, tarsal claws with subapical denticle larger than the others, right mandible with prostheca bifid and pectinate and with incisors positioned in obtuse angle to mola area, lingua with a tuft of setae, segment II of maxillary palpi with a concavity and a hole apically and segment II of labial palpi with a strong distomedial projection. In the adults the hind wings are absent and genitalia with segment II of forceps with a constriction, segment III elongate and long. Two new species are included in this genus; each one was collected at different tepui. A key and illustrations are included.

New euophryine jumping spiders from Central and South America (Araneae: Salticidae: Euophryinae)

Zootaxa ◽  
2012 ◽  
Vol 3578 (1) ◽  
pp. 1 ◽  
Author(s):  
JUN-XIA ZHANG ◽  
WAYNE P. MADDISON
Keyword(s):  
New Species ◽  
South America ◽  
Central America ◽  
New Genus ◽  
The Other ◽  
Jumping Spiders ◽  
Two New Species

Twenty-two new species and one new genus of euophryine jumping spiders from Central America and South America aredescribed. The new genus is Ecuadattus (E. elongatus sp. nov., E. napoensis sp. nov., E. pichincha sp. nov. and the typespecies E. typicus sp. nov.). The other new species belong to the genera Amphidraus (A. complexus sp. nov.), Belliena (B.ecuadorica sp. nov.), Chapoda (C. angusta sp. nov., C. fortuna sp. nov. and C. gitae sp. nov.), Ilargus (I. foliosus sp. nov.,I. galianoae sp. nov., I. macrocornis sp. nov., I. moronatigus sp. nov., I. pilleolus sp. nov. and I. serratus sp. nov.), Maeota(M. dorsalis sp. nov., M. flava sp. nov. and M. simoni sp. nov.), Soesilarishius (S. micaceus sp. nov. and S. ruizi sp. nov.)and Tylogonus (T. parvus sp. nov. and T. yanayacu sp. nov.). Diagnostic illustrations are provided for all new species. Photographs of living spiders are also provided for some new species.

A new species of Mastiglanis Bockmann 1994 (Siluriformes: Heptapteridae) from the Amazon River basin, Peru

Zootaxa ◽  
2020 ◽  
Vol 4820 (2) ◽  
pp. 323-336
Author(s):  
DARIO R. FAUSTINO-FUSTER ◽  
HERNÁN ORTEGA
Keyword(s):  
New Species ◽  
River Basin ◽  
Morphological Analysis ◽  
Valid Species ◽  
Amazon River ◽  
Freshwater Species ◽  
X Rays ◽  
Amazon River Basin ◽  
A New Species ◽  
Pelvic Fin

Mastiglanis is a genus of heptapterid catfish represented by two valid species. These freshwater species are widely distributed along the Amazon, Orinoco, and Maroni River basins. However, a taxonomic review of specimens collected in the Putumayo and Nanay rivers, Amazon River basin in Peru revealed a new species of Mastiglanis. A morphological analysis was completed for morphometric (36 measurements) and meristic (20 counts) data. Osteological counts and descriptions were made from clear and stained specimens and x-rays images. The new species of Mastiglanis differs from M. asopos and M. durantoni by having a long pelvic fin, short snout, eight branched anal-fin rays, and a higher number of vertebrae and gill rakers. The distribution of the new species is restricted to the upper Amazon River basin.

The genus Acellomyia González, a new taxonomic arrangement of its species and descriptions of a new genus and two new species from southern South America (Diptera: Tabanidae: Diachlorini)

Zootaxa ◽  
2017 ◽  
Vol 4337 (4) ◽  
pp. 523
Author(s):  
CHRISTIAN R. GONZÁLEZ
Keyword(s):  
Species Richness ◽  
New Species ◽  
South America ◽  
New Genus ◽  
Morphological Diversity ◽  
Southern Chile ◽  
Key To Species ◽  
Southern South America ◽  
Two New Species ◽  
Morphological Differences

The tabanid tribe Diachlorini (Diptera) is the most genus-rich tribe in the Tabanidae; the tribe is cosmopolitan, but the greatest species richness and morphological diversity are found in the Australasian and Neotropical Regions. A new arrangement for the species of Acellomyia González is given; Acellomyia lauta (Hine) is transferred to a new genus, Montismyia gen.n., based on its morphological differences from Acellomyia and geographical distribution. The morphological differences between Acellomyia and Montismyia gen. n. are discussed. Two new species, Acellomyia casablanca sp.n. and Acellomyia puyehue sp.n., are described from specimens collected in southern Chile. Comparison of the morphology of Acellomyia paulseni mapuche (Coscarón & Philip) stat.nov. indicate that they should be elevated to species rank. A key to species of Acellomyia is provided and diagnostic characters are illustrated. 

Three new species of Tovomita (Clusiaceae) from the Amazon River basin and first record of papillae for Tovomita

2016 ◽  
Vol 302 (8) ◽  
pp. 1121-1134 ◽  
Author(s):  
Lucas C. Marinho ◽  
Pedro Fiaschi ◽  
Francisco de Assis R. dos Santos ◽  
André M. Amorim
Keyword(s):  
New Species ◽  
River Basin ◽  
First Record ◽  
Amazon River ◽  
Amazon River Basin ◽  
Three New Species
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