Description of a new Hemigrammus Gill (Characiformes: Characidae) from the río Madeira basin in Peru and Bolivia

Zootaxa ◽  
2019 ◽  
Vol 4577 (2) ◽  
pp. 335 ◽  
Author(s):  
RAFAELA P. OTA ◽  
FLÁVIO C. T. LIMA ◽  
MAX H. HIDALGO
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Color Pattern ◽  
Species Group ◽  
Lower Branch ◽  
Gill Rakers ◽  
Dark Stripe ◽  
Madre De Dios ◽  
Rio Madeira

We described herein a new Hemigrammus from the río Madre de Dios and rio Mamoré basins in southeastern Peru and Bolivia. The new species possess a color pattern similar to those belonging to the Hemigrammus lunatus species-group, i.e., a broad longitudinal dark stripe across the eye and a conspicuous, narrow dark stripe along the anal-fin basis. It can be easily diagnosed from the species belonging to this group by presenting the combination of the following characters: an oval, horizontally elongated humeral blotch, 6-7 upper branch and 10-12 lower branch gill-rakers, up to five cusps on broader maxillary teeth, and by lacking a midlateral dark stripe. Comments on its putative relationships are provided. Additionally, we updated the geographical distribution of Hemigrammus lunatus and H. machadoi based on an exhaustive survey of material deposited in collections. [Species Zoobank registration: urn:lsid:zoobank.org:act:A2ED5D61-8434-4A0F-BC5B-B496FB3DC191] 

scholarly journals A new Silver Dollar species of Metynnis Cope, 1878 (Characiformes: Serrasalmidae) from Northwestern Brazil and Southern Venezuela

2016 ◽  
Vol 14 (4) ◽  
Author(s):  
Rafaela Priscila Ota ◽  
◽  
Lúcia Helena Rapp Py-Daniel ◽  
Michel Jégu ◽  
◽  
...  
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Lower Limb ◽  
Body Shape ◽  
Color Pattern ◽  
High Concentration ◽  
Gill Rakers ◽  
Rio Negro ◽  
Silver Dollar ◽  
Rio Madeira

ABSTRACT A new Metynnis is described from the rio Negro in Brazil and Venezuela, and from black- or clearwater tributaries in Brazil including the rios Parauari, Uatumã, Trombetas, and Sucunduri (the latter belonging to the rio Madeira basin). The new species can be distinguished readily from all congeners by having a high concentration of dark chromatophores on the lateral line scales. It can be further distinguished by the combination of head length 24.3-27.5% of SL, 13-18 gill-rakers on upper limb and 16-24 gill-rakers on lower limb. The new species is most similar to and likely most closely related to Metynnis hypsauchen . These two species share a similar color pattern, body shape and sexual dimorphism of the anal fin. However, they differ in that M. hypsauchen has a lightly pigmented lateral line. The new species is also distinguished from M. hypsauchen by having 56-65 predorsal scales and 90-104 lateral line scales (vs . 36-54, and 65-82, respectively). A detailed osteological description of the new species is provided.

scholarly journals A new species of Hemigrammus Gill, 1858 (Characiformes: Characidae) from the rio Madeira and rio Paraguai basins, with a redescription of H. lunatus

2014 ◽  
Vol 12 (2) ◽  
pp. 265-279 ◽  
Author(s):  
Rafaela P. Ota ◽  
Flávio C. T. Lima ◽  
Carla S. Pavanelli
Keyword(s):  
New Species ◽  
Color Pattern ◽  
Monophyletic Group ◽  
Gill Rakers ◽  
Horizontal Stripe ◽  
Mato Grosso ◽  
Formal Restriction ◽  
A New Species ◽  
Subjective Synonym ◽  
Rio Madeira

A new Hemigrammusis described from the rio Paraguai and rio Madeira basins, Mato Grosso and Rondônia States, Brazil. The new species is characterized by possessing a wide dark horizontal stripe across the eye, a vertically elongated humeral blotch, and 4-5 gill-rakers on upper branch and 9-10 on lower. The new species can be easily diagnosed from H. lunatus, the sympatric and morphologically most similar congener, by the shape of humeral blotch and the number of gill rakers. Data of the type material of both Hemigrammus lunatus and H. maxillaris, as well as extensive examination of specimens, allowed us to conclude that H. maxillarisis a junior subjective synonym of H. lunatus. A redescription of H. lunatus, as well as a formal restriction of its type locality, is provided. A putative monophyletic group within Hemigrammus, composed by H. barrigonae, Hemigrammus lunatus, H. machadoi new species, and H. ulreyi, named Hemigrammus lunatus group, is proposed based on overall body morphology and color pattern. Additionally, a discussion on the biogeographical relationships between the rio Paraguai and rio Guaporé basins is provided.

A new Hyphessobrycon (Characiformes: Characidae) of the Hyphessobrycon heterorhabdus species-group from the Central Amazon basin, Brazil

Zootaxa ◽  
2020 ◽  
Vol 4859 (2) ◽  
pp. 275-284
Author(s):  
TIAGO C. FARIA ◽  
DOUGLAS A. BASTOS ◽  
JANSEN ZUANON ◽  
FLÁVIO C.T. LIMA
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
Color Pattern ◽  
Species Group ◽  
Central Amazon ◽  
Longitudinal Stripe ◽  
Dark Stripe ◽  
Amazonas State ◽  
Vertical Height ◽  
A New Species

A new species of Hyphessobrycon Durbin from the Paraná do Urariá system in Central Amazon region, Amazonas state, Brazil, is described. The new species is allocated into the Hyphessobrycon heterorhabdus species-group due to its color pattern, composed by a well-defined, horizontally elongated humeral blotch continuous with a conspicuous midlateral dark stripe that becomes blurred towards the caudal peduncle, and can be distinguished from all other species of the group by possessing humeral blotch and continuous midlateral stripe broad, occupying vertical height equivalent of two scale rows. A tricolored pattern composed dorsally by a red or reddish longitudinal stripe, a middle iridescent, golden or silvery longitudinal stripe, and ventrally by a variably-developed longitudinal dark stripe is identified as a putative additional character shared by the species of the Hyphessobrycon heterorhabdus species-group. The presence of bony hooks in all fins in mature males of some species of the Hyphessobrycon heterorhabdus species-group is also discussed. 

Satanoperca curupira, a new cichlid species from the rio Madeira basin in Brazil (Teleostei: Cichlidae)

Zootaxa ◽  
2018 ◽  
Vol 4379 (1) ◽  
pp. 103 ◽  
Author(s):  
RENATA R. OTA ◽  
SVEN O. KULLANDER ◽  
GABRIEL C. DEPRÁ ◽  
WEFERSON J. DA GRAÇA ◽  
CARLA S. PAVANELLI
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
Color Pattern ◽  
Species Group ◽  
The State ◽  
Geographical Range ◽  
Cichlid Species ◽  
Irregular Pattern ◽  
Rio Madeira

Satanoperca curupira, new species, is described from the rio Madeira basin in the State of Rondônia, Brazil. It is distinguished from all congeners by the following combination of characters: 3–7 dark-brown oblique stripes on the lachrymal (vs. 2 well-defined dark-brown stripes, or dark-brown stripes absent) and an irregular pattern of dark-brown stripes on cheek and opercular series (vs. cheek without dark-brown markings or with light-beige rounded spots). According to meristic and color pattern characters, the new species is considered a member of the S. jurupari species group, and is syntopic with S. jurupari, which is widespread in the Amazon basin. The restricted geographical range of the new species is congruent to that observed for some other Satanoperca species. 

scholarly journals A new species of Panaqolus (Siluriformes: Loricariidae) from the rio Madeira basin with remarkable intraspecific color variation

2015 ◽  
Vol 13 (3) ◽  
pp. 461-470 ◽  
Author(s):  
Christian Andreas Cramer ◽  
Lúcia Helena Rapp Py-Daniel
Keyword(s):  
New Species ◽  
Color Pattern ◽  
The Body ◽  
Color Variation ◽  
Head Length ◽  
Madre De Dios ◽  
White Water ◽  
A New Species ◽  
Fish Species Diversity ◽  
Rio Madeira

The rio Madeira is the largest white-water tributary of the Amazon, and is currently the river drainage with the highest fish species diversity in the world. A new species of Panaqolus was recognized from the middle Madeira and Mamoré rivers (Brazil) and from the Madre de Dios drainage (Peru) and it is described herein. This new species is readily distinguished from its congeners by the large number of white dots distributed all over the body and by its remarkable amplitude of color pattern variation, ranging from a pale, light brown, to dark brown and almost black background coloration. The new species closely resembles P. albomaculatus but has more and smaller dots on the body, a smaller orbital diameter (12.5-16.8% head length vs. 16.0-20.0%) and longer maxillary barbels (9.7-19.6% head length vs. 1.6-8.9%). The new species is the second of the genus Panaqolus described for a Brazilian location after nearly 80 years of the description of P. purusiensis.

A new species of Leptodactylus Fitzinger (Anura, Leptodactylidae) from Serra do Brigadeiro, State of Minas Gerais, Southeastern Brazil

Zootaxa ◽  
2008 ◽  
Vol 1861 (1) ◽  
pp. 44 ◽  
Author(s):  
ULISSES CARAMASCHI ◽  
RENATO N. FEIO ◽  
VINÍCIUS A. SÃO-PEDRO
Keyword(s):  
New Species ◽  
Color Pattern ◽  
Dominant Frequency ◽  
Species Group ◽  
Minas Gerais ◽  
Southeastern Brazil ◽  
Advertisement Call ◽  
Large Size ◽  
O 31 ◽  
A New Species

A new species of Leptodactylus belonging to the L. fuscus species group, and related to the L. mystaceus complex, is described from the Lagoa das Bromélias (20 o 53’S, 42 o 31’W; 1,227 m above sea level), Parque Estadual da Serra do Brigadeiro, Municipality of Ervália, State of Minas Gerais, Southeastern Brazil. Leptodactylus cupreus sp. nov. is characterized by the large size for the group (SVL 50.1–55.1 mm in males) and color pattern. The new species has a non-pulsed advertisement call, with call rate about 12 calls/s and a dominant frequency between 2,800 and 3,058 Hz.

A new species of Zoniopoda Stål (Orthoptera: Acridoidea: Romaleidae) from Argentina and its phylogenetic position within the genus

Zootaxa ◽  
2011 ◽  
Vol 2913 (1) ◽  
pp. 27 ◽  
Author(s):  
MARTINA E. POCCO ◽  
GONZALO D. RUBIO ◽  
M. MARTA CIGLIANO
Keyword(s):  
New Species ◽  
Cladistic Analysis ◽  
Type Specimen ◽  
Morphological Characters ◽  
Color Pattern ◽  
Species Group ◽  
The Body ◽  
Phylogenetic Position ◽  
Median Carina ◽  
A New Species

A new species of the romaleid grasshopper genus Zoniopoda Stål (Romaleidae: Romaleini) is described and illustrated from the Sierras Chicas of Córdoba Province, central Argentina. A cladistic analysis based on morphological characters indicates that the genus Zoniopoda constitutes a monophyletic group and that Zoniopoda serrana n. sp. must be assigned to Iheringi species group based on synapomorphies of the pronotum and body color. The new species is similar to Z. similis Bruner from Paraguay, Bolivia and Brazil, from which it can be distinguished by the color pattern of the body, shape of the pronotal dorso-median carina and characters of the male terminalia and epiphallus. This paper has been formatted with embedded links to images of the type specimen, maps based on georeferenced specimen data for the genus and an updated key to the species of Zoniopoda available on the Orthoptera Species File (OSF) online (http://orthoptera.speciesfile.org).

scholarly journals A new species of Vespula, and first record of Vespa crabro L. (Hymenoptera: Vespidae) from Guatemala, Central America

Zootaxa ◽  
2010 ◽  
Vol 2629 (1) ◽  
pp. 61 ◽  
Author(s):  
PETER J. LANDOLT ◽  
JOSÉ MONZÓN SIERRA ◽  
THOMAS R. UNRUH ◽  
RICHARD S. ZACK
Keyword(s):  
New Species ◽  
Central America ◽  
Dna Sequences ◽  
First Record ◽  
Color Pattern ◽  
Species Group ◽  
Mountain Range ◽  
Vespa Crabro ◽  
Vespula Vulgaris ◽  
A New Species

Vespula akrei Landolt sp. nov. is described from Guatemala. The first record of Vespa crabro L. in Guatemala is given, and Vespula inexspectata Eck from Mexico is re-described. We place Vespula akrei sp. nov. in the Vespula vulgaris (L.) species group (= Paravespula Bluthgen) based on morphology, color pattern, and DNA sequences from two mitochrondrial genes. It is presently known only from the Sierra de las Minas mountain range in southeastern Guatemala.

scholarly journals A new species of Farlowella (Siluriformes: Loricariidae) of the F. nattereri species-group from the rio Xingu basin, Mato Grosso, Brazil, with comments on Farlowella jauruensis , a poorly-known species from the upper rio Paraguai basin

2016 ◽  
Vol 14 (3) ◽  
Author(s):  
Gustavo A. Ballen ◽  
Murilo N. L. Pastana ◽  
Luiz A. W. Peixoto
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Color Pattern ◽  
Species Group ◽  
Caudal Fin ◽  
Mato Grosso ◽  
Fin Rays ◽  
Plate Morphology ◽  
A New Species

ABSTRACT A new species of Farlowella is described from eighteen specimens collected in the upper rio Xingu basin, Mato Grosso State, Brazil. The new species is a member of the Farlowella nattereri species-group and can be distinguished from other members of the group, with exception of Farlowella jauruensis , by exhibiting a proportionally shorter snout. The new species is distinguished from F. jauruensis by differences on the cleithrum and plate morphology, by counts of pelvic and caudal-fin rays, and by the color pattern of the snout. The discovery of new lots of F. jauruensis , a species so far known only from the holotype, is also herein reported. This discovery represents a considerable expansion of the geographic distribution and of the number of known specimens of F . jauruensis .

scholarly journals New and little known species of Erasmoneura Young (Hemiptera: Cicadellidae: Typhlocybinae)

Zootaxa ◽  
2008 ◽  
Vol 1851 (1) ◽  
pp. 65
Author(s):  
D. A. DMITRIEV
Keyword(s):  
New Species ◽  
Male Genitalia ◽  
Color Pattern ◽  
Species Group ◽  
Individual Species ◽  
Wing Venation ◽  
Generic Status ◽  
The North ◽  
Female Holotype ◽  
A New Species

The North American leafhopper genus Erasmoneura Young was described as a subgenus of Erythroneura Fitch by Young (1952) to comprise the informal Erythroneura vulnerata Fitch species group previously recognized by Beamer (1938, 1946). Erasmoneura was recently elevated to generic status (Dietrich & Dmitriev, 2006) and revised (Dmitriev & Dietrich, 2007). In this paper, the male of Erasmoneura bipentagona (Beamer), previously known only from the female holotype and placed in the genus based on external similarity and features of wing venation (Young, 1952; Dietrich & Dmitriev, 2006; Dmitriev & Dietrich, 2007, see also the note for the species below), and a new species are described. A key for identification of all 13 species of the genus is provided. The key is based mainly on male genitalia characters. Although individual species have a characteristic color pattern, details and intensity may be highly variable both inter- and intraspecifically.

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