A new species of Cynopotamus Valenciennes, 1849 (Characiformes, Characidae) with a key to the species of the genus

Zootaxa ◽  
2007 ◽  
Vol 1635 (1) ◽  
pp. 55-61 ◽  
Author(s):  
NAÉRCIO A. MENEZES
Keyword(s):  
New Species ◽  
Species Identification ◽  
Branchial Arch ◽  
Gill Rakers ◽  
A New Species

Cynopotamus xinguano n. sp. is described from middle-upper tributaries of rio Xingu basin. Among the known species of the genus (Menezes, 1976, 1987) it is more similar to C. essequibensis Eigenmann from which it differs by having more developed gill-rakers on first branchial arch and a different arrangement of muscles around muscular hiatus of pseudotympanum. A new key for species identification is provided.

scholarly journals A new species of Pimelodus La Cépède, 1803 (Siluriformes: Pimelodidae) from rio Ribeira de Iguape basin, Brazil

2011 ◽  
Vol 9 (1) ◽  
pp. 127-134 ◽  
Author(s):  
Frank Raynner V Ribeiro ◽  
Carlos Alberto S. de Lucena ◽  
Osvaldo T Oyakawa
Keyword(s):  
New Species ◽  
Dorsal Surface ◽  
Branchial Arch ◽  
The Other ◽  
Gill Rakers ◽  
Caudal Fin ◽  
Fin Rays ◽  
A New Species ◽  
Pelvic Fin

Pimelodus multicratifer, a new species, is described from the rio Ribeira de Iguape basin. The new species differs from the other Pimelodus species by the following features: 26 to 30 gill rakers on the first branchial arch; a combination of three to six rows of dark spots regularly or irregularly scattered on the flanks and several small dark spots irregularly scattered on the dorsal surface of head, supraoccipital process, and sometimes on the dorsal and caudal fins; striated lips; maxillary barbels reaching between posterior tip of the pelvic-fin rays and posterior tip of the middle caudal-fin rays.

Hemiodus jatuarana, a new species of Hemiodontidae from the rio Trombetas, Amazon Basin, Brazil (Teleostei, Characiformes)

Zootaxa ◽  
2004 ◽  
Vol 546 (1) ◽  
pp. 1 ◽  
Author(s):  
FRANCISCO LANGEANI
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
Branchial Arch ◽  
The Body ◽  
Dark Spot ◽  
Gill Rakers ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Dark Pigmentation ◽  
A New Species

Hemiodus jatuarana, a new species of the Hemiodontidae from Oriximin , rio Trombetas, Amazon Basin, Brazil, is described. The new species can be readily distinguished from its congeners by the presence of a horizontally elongated dark spot on the caudal peduncle, and by the absence of any other dark pigmentation pattern on the body. Hemiodus jatuarana is readily separated from H. immaculatus, another species without dark pigmentation on the body, by having 25 27 epibranchial and 36 37 ceratobranchial gill rakers on the first branchial arch, and caudal-fin lobes without longitudinal stripes, vs. 14 16 and 21 25 gill rakers, and a conspicuous longitudinal stripe on each caudal-fin lobe in H. immaculatus. The new species is only known from its type-locality, where it cooccurs with H. immaculatus.

Glyptothorax jayarami, a new species of catfish (Teleostei: Sisoridae) from Mizoram, northeastern India

Zootaxa ◽  
2012 ◽  
Vol 3304 (1) ◽  
pp. 54 ◽  
Author(s):  
YUMNAM RAMESHORI ◽  
WAIKHOM VISHWANATH
Keyword(s):  
New Species ◽  
Branchial Arch ◽  
Gill Rakers ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Northeastern India ◽  
Central Depression ◽  
A New Species

A new sisorid catfish, Glyptothorax jayarami, is described from the Kaladan basin of Mizoram, India. It is characteristicin having densely tuberculate skin; an elongate, ovoid thoracic adhesive apparatus with an oval central depression fromwhich the ridges on the apparatus diverge; two blackish-brown blotches at caudal-fin base behind the hypural plate; welldeveloped plicae on the ventral surfaces of simple and adjacent branched rays of pectoral and pelvic fins; a narrow caudal peduncle (5.5–7.9 % SL) and long 2 + 6–7 gill rakers on the first branchial arch.

Pilaira australis sp. nov. (Mucorales, Mucoromycota) isolated from emu faeces in Australia

Phytotaxa ◽  
2017 ◽  
Vol 329 (3) ◽  
pp. 277 ◽  
Author(s):  
ANDREW S. URQUHART ◽  
PAULINE M. L. COULON ◽  
ALEXANDER IDNURM
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Species Identification ◽  
Internal Transcribed Spacers ◽  
Molecular Phylogenetic Analysis ◽  
Unique Combination ◽  
Dromaius Novaehollandiae ◽  
Molecular Phylogenetic ◽  
Carbon Utilisation ◽  
A New Species

Pilaira australis, a new species of fungus in the coprophilous genus Pilaira, was isolated from emu (Dromaius novaehollandiae) faeces and is described. Morphologically, the species resembles other species in the genus, particularly P. moreaui, except differs in its unique combination of sporangiophore height and sporangiospore length. Molecular phylogenetic analysis indicates that P. australis is distinct from other species in the genus with two regions, the internal transcribed spacers (ITS) and a fragment of the pyrG gene, showing 91% and 90% identity to the nearest species, respectively. Ultrastructure features and carbon utilisation were determined for P. australis, and may provide characteristics for species identification in this genus.

scholarly journals A new species of Sarcofahrtiopsis (Insecta, Diptera, Sarcophagidae) from mangrove forests in the Brazilian Amazon, with a key to species identification

2017 ◽  
Vol 47 (4) ◽  
pp. 349-354
Author(s):  
Fernando da Silva CARVALHO-FILHO ◽  
Caroline Costa de SOUZA ◽  
Jéssica Maria Menezes SOARES
Keyword(s):  
New Species ◽  
Species Identification ◽  
Mangrove Forest ◽  
Brazilian Amazon ◽  
The State ◽  
Mangrove Forests ◽  
Congeneric Species ◽  
Key To Species ◽  
A New Species

ABSTRACT A new species of Sarcofahrtiopsis Hall, 1933, S. terezinhae sp. nov., is described based on male specimens collected in traps baited with rotting crabs in a mangrove forest in the state of Pará, eastern Brazilian Amazon. This species differs from congeneric species in having vesica with a row of toe-like projections. We provide a key to the species of the genus.

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.

Review of Cephennomicrus and Pomphopsilla of the Seychelles (Coleoptera, Staphylinidae, Scydmaeninae)

Zootaxa ◽  
2019 ◽  
Vol 4568 (2) ◽  
pp. 357
Author(s):  
PAWEŁ JAŁOSZYŃSKI
Keyword(s):  
New Species ◽  
Species Identification ◽  
Species Group ◽  
Proximal Portion ◽  
A New Species

All species of the cephenniine genus Cephennomicrus known to occur in the Seychelles were described by Scott (as Neseuthia) nearly a century ago. The descriptions were based on external characters, which does not allow for species identification. All the species are redescribed here: C. cordithorax, C. cornutus, C. minor, C. perexiguus, C. politus and C. typicus. Cephennomicrus crenatus is transferred to another genus, resulting in Pomphopsilla crenata comb. n. Lectotypes are designated for Neseuthia minor, N. perexigua and N. crenata. A new species group within Cephennomicrus is proposed to accommodate all species treated here, which share, among other characters, a long flagellum with a broad proximal portion, very short setae on the pronotum and elytra, five pronotal antebasal pits, a transverse groove connecting three of them, and unique modifications of the head in males. 

A new species of Astyanax (Characiformes: Characidae) from the endorheic RRo SalR basin, Tucumán, northwestern Argentina

Zootaxa ◽  
2007 ◽  
Vol 1646 (1) ◽  
pp. 31-39 ◽  
Author(s):  
JUAN MARCOS MIRANDE ◽  
GAST[N AGUILERA ◽  
MARQA DE LAS MERCEDES AZPELICUETA
Keyword(s):  
New Species ◽  
Short Distance ◽  
Gill Rakers ◽  
Caudal Peduncle ◽  
Northwestern Argentina ◽  
Tooth Position ◽  
Maxillary Tooth ◽  
Fin Rays ◽  
A New Species ◽  
Pelvic Fin

Astyanax puka, new species from the endorheic RRo SalR basin, is diagnosed by the following combination of characters: shallow body (33.5–39.8 % SL), 36–38 perforated scales in lateral line, 6/5 transverse scales, 9–10 gradually decreasing dentary teeth, distally expanded premaxillary teeth, one distally expanded maxillary tooth with 7–9 cusps, short upperjaw length (34.5–37.8 % HL), short maxilla (20.7–23.3 % HL) expanded abruptly under maxillary tooth position, short postorbital distance (36.6–46.9 % HL), short distance between pelvic and anal-fin origins (17.1–20.6 % SL), 22–27 branched anal-fin rays, long caudal peduncle (13.3–16.5 % SL), bony hooks restricted to pelvic-fin rays 2 to 6 and anterior 6–13 branched anal-fin rays on mature males, and the presence of broad denticles on anterior, lateral, and posterior edges of first ceratobranchial gill rakers.

Phylogenetic analysis of the genus Corotoca, with description of a new genus and species from Brazil (Coleoptera, Staphylinidae, Aleocharinae)

2020 ◽  
pp. 1-45
Author(s):  
Bruno Zilberman
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Species Identification ◽  
New Genus ◽  
Cladistic Analysis ◽  
Sister Group ◽  
Exhaustive Search ◽  
New Genus And Species ◽  
A New Species

Corotoca is a strictly Neotropical genus of termitophilous beetles associated with termites of genus Constrictotermes. A cladistic analysis based on 13 terminal taxa and 60 characters (57 morphological and three behavioral) was conducted. The exhaustive search with equally weighted characters resulted in two most parsimonious trees with 95 steps. Spirachtha is proposed to be the sister group of the monophyletic “subgroup Corotocae” (Corotoca + Cavifonexus gen. nov.), based on eleven synapomorhphies (ten exclusive and one homoplastic). The monophyly of Corotoca is supported here, including six species associated with Constrictotermes cyphergaster: (Corotoca hitchensi sp. nov + (C. melantho + C. pseudomelantho sp. nov.) + ((C. fontesi + (C. phylo + C. araujoi)). A new genus, Cavifronexus gen. nov., is proposed to two species associated with Constrictotermes cavifrons (Holmgren, 1910): Cavifronexus guyanae comb. nov., from Guyana and Brazil, previously described as Corotoca; and a new species, Cavifronexus papaveroi sp. nov., from Brazil. This work also includes descriptions, redescriptions, and illustrations for all species and genera. Keys for genera and species identification in “subgroup Corotocae” are also provided.

New species and new report of Hyalella S. I. Smith, 1874 (Crustacea: Amphipoda: Dogielinotidae) from Minas Gerais state, Southeastern Brazil

Zootaxa ◽  
2012 ◽  
Vol 3350 (1) ◽  
pp. 58 ◽  
Author(s):  
RAFAELA BASTOS-PEREIRA ◽  
ALESSANDRA ANGÉLICA DE PÁDUA BUENO
Keyword(s):  
New Species ◽  
Species Identification ◽  
Posterior Margin ◽  
Minas Gerais ◽  
The State ◽  
Southeastern Brazil ◽  
Diverse Group ◽  
Minas Gerais State ◽  
A New Species ◽  
Janeiro State

At present, 13 species of Hyalella are recorded from Brazilian hydrographic basins. A new species of the genus was foundin the municipality of Arcos, Minas Gerais state and it is described here. Curved seta on inner ramus of male uropod 1,posterior margin of gnathopod 2 propodus shorter than palm, telson longer than wide are some of the diagnostic charatctersof this new species. The articles of maxillipod palp and propodus of gnathopod 2 are elongated as observed in H.longistila,but the new species differs from it because of the curved seta on uropod 1. Despite being large and diverse group, Hyalellais represented only by two species in the state of Minas Gerais (Southeastern Brazil), H. warminig and H. gracilicornis.The distribution of H. longistila, previously recorded in Rio de Janeiro state, was extended to Minas Gerais state. Thiswork, therefore, contributes for the knowledge of Amphipoda fauna from Brazil, describing a new species and providing a key to the species identification. From this work, the number of Hyalella species found in Brazil to 14.

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