A new species of Camelobaetidius Demoulin, 1966 (Ephemeroptera: Baetidae), from the Colombian Orinoco River basin

Zootaxa ◽  
2019 ◽  
Vol 4656 (2) ◽  
pp. 367-374
Author(s):  
LUIS GONZALO SALINAS-JIMENEZ ◽  
R. BOLDRINI ◽  
DIANA PAOLA OSORIO-RAMIREZ ◽  
CLARA INES CARO ◽  
JOSE ISMAEL ROJAS-PEÑA
Keyword(s):  
New Species ◽  
River Basin ◽  
Posterior Margin ◽  
Outer Margin ◽  
Labial Palp ◽  
Orinoco River ◽  
Terminal Filament ◽  
Fourth Species ◽  
A New Species

Three species of Camelobaetidius Demoulin, 1966 have been reported from Colombia until now, based on nymphs. We describe a fourth species based on nymphs from the Colombian Orinoco river basin. The new species can be recognized by: 1) labrum narrowly rounded anteriorly; 2) segment II of labial palp with a short rounded distomedial projection; 3) incisors of right mandible with eleven denticles; 4) gills absent from the bases of coxae; 5) tarsal claws with ten denticles; 6) outer margin of forefemur with a row of about 23 long, spine-like setae; 7) posterior margin of tergum IV with truncate spines, and 8) terminal filament almost as long as cerci. [Zoobank URL: urn:lsid:zoobank.org:act:500CF998-8EF3-43E3-BA8B-F062B92768F3] 

A new species of Pimelodella Eigenmann & Eigenmann, 1888 (Siluriformes: Heptapteridae) from the Orinoco River basin

Zootaxa ◽  
2020 ◽  
Vol 4808 (3) ◽  
pp. 491-506
Author(s):  
MIGUEL ÁNGEL CORTÉS-HERNÁNDEZ ◽  
CARLOS DONASCIMIENTO ◽  
HERNANDO RAMÍREZ-GIL
Keyword(s):  
New Species ◽  
River Basin ◽  
Taxonomic Status ◽  
Dorsal Lobe ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Orinoco River ◽  
Dorsal Fin ◽  
Adipose Fin ◽  
A New Species

A new species of Pimelodella is described from western Andean tributaries of the Orinoco River basin. The new species differs from all congeners by a unique set of characters that includes long maxillary barbel, surpassing the dorsal lobe of the caudal fin; relatively short adipose fin (32.8–36.4 of SL); 40–42 total vertebrae; posterior margin of pectoral-fin spine with 12–18 retrorse dentations along basal two thirds; laterosensory canal foramina of dentary and preopercle large and externally conspicuous; a brown faint and narrow midlateral stripe extending from the pseudotympanum, fading posteriorly along the caudal peduncle, and ending as a spot at the caudal-fin base; and dorsal-fin base darkly pigmented, from spinelet to posteriormost interradial membrane. Taxonomic status of P. pallida and presence of P. cruxenti in Colombia are also discussed. 

scholarly journals A new species of Hyphessobrycon (Characiformes, Characidae) from the upper Guaviare River, Orinoco River Basin, Colombia

ZooKeys ◽  
2017 ◽  
Vol 668 ◽  
pp. 123-138 ◽  
Author(s):  
Carlos A. García-Alzate ◽  
Alexander Urbano-Bonilla ◽  
Donald C. Taphorn
Keyword(s):  
New Species ◽  
River Basin ◽  
Orinoco River ◽  
A New Species

A new species of Thalerosphyrus Eaton 1881 (Ephemeroptera: Heptageniidae: Ecdyonurinae) from India

Zootaxa ◽  
2017 ◽  
Vol 4350 (1) ◽  
pp. 84 ◽  
Author(s):  
C. SELVAKUMAR ◽  
KAILASH CHANDRA ◽  
K. G. SIVARAMAKRISHNAN ◽  
E. EYARIN JEHAMALAR
Keyword(s):  
New Species ◽  
Posterior Margin ◽  
Hind Tibia ◽  
Outer Margin ◽  
Jaintia Hills ◽  
Segment Viii ◽  
A New Species

A new species of Thalerosphyrus Eaton 1881 is described based on larvae collected from East Khasi Hills district and East Jaintia Hills district of Meghalaya. Thalerosphyrus meghalayensis Selvakumar & Chandra  n. sp. can be distinguished from other known species of the genus by the following combination of characters: (i) posterolateral expansions of segment VIII always shorter than those of segment VII; (ii) pronotum moderately enlarged laterally; (iii) bristles on the dorsal face of hind femora truncate or round at apex; (iv) hind tibia with a row of thin setae; (v) outer margin of superlinguae evenly covered with long setae ending at apex by minute setae and (vi) posterior margin of tergites with regularly pointed teeth, and numerous microdenticles. A modified larval key is provided for known species of this genus. 

Camelobaetidius francischettii: a new species of Baetidae (Ephemeroptera) from Brazil

Zootaxa ◽  
2005 ◽  
Vol 1027 (1) ◽  
pp. 46 ◽  
Author(s):  
F. F. SALLES ◽  
M. B. ANDRADE ◽  
E. R. DA-SILVA
Keyword(s):  
New Species ◽  
Abdominal Segment ◽  
The Other ◽  
Southeastern Brazil ◽  
Fore Tibia ◽  
Labial Palp ◽  
Ventral Margin ◽  
Terminal Filament ◽  
Fore Femur ◽  
A New Species

Camelobaetidius francischettii, new species, is described based on nymphs collected from Alagoas and Rio de Janeiro states, Northeastern and Southeastern Brazil, respectively. The species can be distinguished from the other described species of the genus by the following combination of characters: (1) segment 2 of labial palp with distomedial process rounded and strongly produced; (2) fore femora with prominent protuberance; (3) fore tibia with indentation at apex; (4) ventral margin of fore femur and fore tibia entirely scattered with spines; (5) tarsal claws with 34 to 37 denticles; (6) small thoracic gill at the base of fore coxae; (7) prosternum with a single, medial protuberance; (8) paraprocts with ca. 22 marginal small spines; and (9) terminal filament about as long as the length of the 10 th abdominal segment.

A New Species ofSpatuloricariaSchultz, 1944 (Siluriformes: Loricariidae), from the Orinoco River Basin, Colombia

Copeia ◽  
2018 ◽  
Vol 106 (4) ◽  
pp. 611-621
Author(s):  
Alejandro Londoño-Burbano ◽  
Alexander Urbano-Bonilla ◽  
Yecid Rojas-Molina ◽  
Hernando Ramírez-Gil ◽  
Saúl Prada-Pedreros
Keyword(s):  
New Species ◽  
River Basin ◽  
Orinoco River ◽  
A New Species

scholarly journals Harttia merevari, a new species of catfish (Siluriformes: Loricariidae) from Venezuela

2005 ◽  
Vol 3 (4) ◽  
pp. 519-524 ◽  
Author(s):  
Francisco Provenzano R. ◽  
Antonio Machado-Allison ◽  
Barry Chernoff ◽  
Phil Willink ◽  
Paulo Petry
Keyword(s):  
New Species ◽  
River Basin ◽  
Central Area ◽  
Dorsal Surface ◽  
The Body ◽  
Anterior Portion ◽  
Orinoco River ◽  
Black Spots ◽  
Bony Plate ◽  
A New Species

Harttia merevari, a new species of loricariid catfish, is described from eight specimens captured in the upper Caura River, Orinoco River basin, Venezuela. The new species is recognized by the following combination of characters: abdomen naked; two or three preanal plates; a bony plate before each branchial opening; seven lateral plates between the pectoral and pelvic fins; maxillary barbel short and attached to the oral disk by a fleshy fold; head dorsal surface and anterior portion of the body light or dark yellow with numerous, round black spots; posterior region of the body light or dark yellow with five black transverse bands, dorsal central area of the two anterior bands diffused. The discovery of this new species extends the distribution of the genus northwest to include the Orinoco River basin on the northern slope of the Guyana shield.

scholarly journals Pseudobunocephalus, a new genus of banjo catfish with the description of a new species from the Orinoco River system of Colombia and Venezuela (Siluriformes: Aspredinidae)

2008 ◽  
Vol 6 (3) ◽  
pp. 293-300 ◽  
Author(s):  
John P. Friel
Keyword(s):  
New Species ◽  
River Basin ◽  
New Genus ◽  
River System ◽  
Gill Rakers ◽  
Orinoco River ◽  
Lower Jaw ◽  
Branchial Arches ◽  
Mandibular Teeth ◽  
A New Species

Pseudobunocephalus, a new genus of small banjo catfishes (< 80 mm SL), is distinguished from all other aspredinid genera by the following unique features: mandibular teeth restricted to a patch near symphysis of lower jaw; no contact between the metapterygoid and quadrate; autopalatine posteriorly forked with two separate cartilages; absence of the fourth pharyngobranchial; absence of gill rakers on all branchial arches; and lack of bifid hemal spines on vertebrae that articulate with anal-fin pterygiophores. As defined Pseudobunocephalus contain a new species, P. lundbergi from the Orinoco River basin, along with five other species previously assigned to the genus Bunocephalus: P. amazonicus, P. bifidus, P. iheringii, P. quadriradiatus, and P. rugosus.

scholarly journals A New Species of the Genus Garra Hamilton, 1822 from the Chindwin Basin of Manipur, India (Teleostei: Cyprinidae: Labeoninae)

ISRN Zoology ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-6
Author(s):  
Bungdon Shangningam ◽  
Waikhom Vishwanath
Keyword(s):  
New Species ◽  
River Basin ◽  
Posterior Margin ◽  
Cyprinid Fish ◽  
Unique Combination ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Abdominal Region ◽  
Black Band ◽  
A New Species

Garra namyaensis sp. nov., a new cyprinid fish, is described from the Chindwin River basin in Manipur, India. It is distinguished from its congeners in having a unique combination of the following characters: smoothly rounded snout tip with a prominent rostral lobe, chest and abdominal region with scales, dorsal fin with a black band near the posterior margin, and caudal fin with a distinct W-shaped black band.

scholarly journals A new species of whiptail armored catfish, genus Pseudohemiodon (Siluriformes: Loricariidae) from the Orinoco River basin, Llanos region of Colombia and Venezuela

2019 ◽  
Vol 17 (2) ◽  
Author(s):  
Yecid Andrey Rojas-Molina ◽  
Francisco Provenzano-Rizzi ◽  
Hernando Ramírez-Gil
Keyword(s):  
New Species ◽  
River Basin ◽  
Color Pattern ◽  
Aquatic Systems ◽  
Body Color ◽  
Caudal Peduncle ◽  
Orinoco River ◽  
Gill Opening ◽  
Covered Area ◽  
A New Species

ABSTRACT A new species of whiptail armored catfish belonging to the genus Pseudohemiodon is described. The new species inhabits aquatic systems of the Orinoco River basin, mostly in the Llanos region of Colombia and Venezuela. Previously, it had identified as P. laticeps erroneously. The genus Pseudohemiodon includes seven known species inhabit Amazon and Paraná-Paraguay-Uruguay rivers basins. The new species is distinguished from congeners by the combination of the following characters: abdomen totally covered; area in front of gill opening without plates, ventrally; dorsal body color pattern without transversal dark bands, mostly in the caudal peduncle; head with straight sides; head and caudal peduncle narrower.

A new species of Eusirus (Amphipoda, Amphilochidea, Eusiridae) described from a hydrothermal vent in the Okinawa Trough, North-West Pacific

Crustaceana ◽  
2021 ◽  
Vol 94 (11-12) ◽  
pp. 1395-1405
Author(s):  
Yanrong Wang ◽  
Zhongli Sha ◽  
Xianqiu Ren
Keyword(s):  
New Species ◽  
Hydrothermal Vent ◽  
Posterior Margin ◽  
Okinawa Trough ◽  
Dorsal Margin ◽  
West Pacific ◽  
North West ◽  
The Okinawa Trough ◽  
Fourth Species ◽  
A New Species

Abstract A new species of Eusiridae, Eusirus liui sp. nov. is described from a hydrothermal vent on Okinawa Trough, North-West Pacific. The new species differs from the other 30 congeneric species mainly by the following combination of characters: the acute rostrum reaching to 1/3 the length of peduncular article 1 of antenna 1; the absence of eyes; pleonite 3 without acute protrusion on dorsal margin, and the posterior margin of epimeron 3 with 18 serrations. A key to all known Eusirus species is provided herein. This is the fourth species within the Eusiridae that has been found from vent fields.

Sign in / Sign up

Export Citation Format

Share Document