Merodoras nheco, new genus and species from Rio Paraguay basin, Brazil (Siluriformes, Doradidae), and nomination of the new subfamily Astrodoradinae

Zootaxa ◽  
2007 ◽  
Vol 1446 (1) ◽  
pp. 31-42 ◽  
Author(s):  
HORÁCIO HIGUCHI ◽  
JOSÉ L.O. BIRINDELLI ◽  
LEANDRO M. SOUSA ◽  
HERALDO A. BRITSKI
Keyword(s):  
New Species ◽  
Lateral Line ◽  
New Genus ◽  
Pectoral Girdle ◽  
Unique Combination ◽  
New Genus And Species ◽  
Dorsal Fin ◽  
Orbital Margin ◽  
Inferior Portion ◽  
Lateral Ethmoid

Merodoras nheco, new genus and species of Doradidae (Siluriformes) is described from Rio Paraguay basin, Brazil. The new genus belongs to the new subfamily Astrodoradinae, a monophyletic group formally named herein that includes, besides Merodoras, Amblydoras, Anadoras, Astrodoras, Hypodoras, Physopyxis, and Scorpiodoras. This group is diagnosed by the possession of: lacrimal serrated and participating in the orbital margin, four to seven pleural ribs; spines on the postcleithral process; postero-inferior portion of the coracoid exposed.  Merodoras nheco, new species, is distinguished from other doradids by the unique combination of the following characteristics: 1) tips of retrorse spines on the midlateral scutes ventrally oriented in adults; 2) incomplete lateral line, with only a few midlateral scutes anteriorly; 3) pectoral girdle entirely exposed ventrally, with the opening of the arrector ventralis inferior reduced to a small fossae on the anterior edge of the coracoid; 4) caudal fin truncate; 5) dorsal-fin spine smooth, without serrae on both faces; 5) lacrimal serrated; 6) lateral ethmoid serrated.  Merodoras nheco inhabits the “Pantanal Matogrossense,” a flooded portion of the upper Rio Paraguay basin in western Brazil.

Gymnesigobius medits (Teleostei: Gobiidae), a new gobiid genus and species from the western Mediterranean slope bottoms

Zootaxa ◽  
2019 ◽  
Vol 4651 (3) ◽  
pp. 513-530
Author(s):  
MARCELO KOVAČIĆ ◽  
FRANCESC ORDINES ◽  
SERGIO RAMIREZ-AMARO ◽  
ULRICH K. SCHLIEWEN
Keyword(s):  
New Genus ◽  
Morphological Characters ◽  
Western Mediterranean ◽  
Full Description ◽  
Unique Combination ◽  
New Genus And Species ◽  
Posterior Edge ◽  
Superior Part ◽  
Dorsal Fin ◽  
Pelvic Fin

A new genus and species of goby, Gymnesigobius medits sp. nov., is described from the western Mediterranean slope bottoms at the Balearic Islands. The new goby belongs to the Gobius-lineage (Gobiinae). Examination of the single known specimen exhibits a unique combination of morphological characters which could not be fitted to any known genus. Gymnesigobius gen. nov. is morphologically distinguished from all other genera in the Gobius-lineage by the following combination of characters: chin without fold or barbels; mouth terminal with anterior tip above horizontal level of lower eye edge; predorsal area and first dorsal fin base naked; pelvic fin anterior membrane well developed; head with anterior oculoscapular and preopercular canals, posterior oculoscapular canal absent; pores of head canals enlarged, e.g. pores α and ρ larger or of about the same size as interspaces to pore β; six transverse suborbital rows of sensory papillae, four continuous suborbital rows in front of row b, fifth row divided in three parts but in front of row b, sixth row just as superior part above row b and below pore α; longitudinal suborbital row b barely reaching forward to the vertical from posterior edge of eye. A full description of the new genus and species is provided. The new species, collected at a depth of between 344 and 364 m (mean depth of 354 m), is one of very few gobiid species found at bathyal depths. 

A new species of Creagrutus Günther (Characidae: Stevardiinae) from the Amazonian Piedmont of Colombia

Zootaxa ◽  
2020 ◽  
Vol 4755 (2) ◽  
pp. 365-374
Author(s):  
JUAN G. ALBORNOZ-GARZÓN ◽  
ASTRID ACOSTA-SANTOS ◽  
JUAN D. BOGOTÁ-GREGORY ◽  
EDWIN AGUDELO-CÓRDOBA
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Unique Combination ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Fin Rays ◽  
Phylogenetic Framework ◽  
A New Species ◽  
Piedmont Region

A new species of Creagrutus is described from the Amazonian Piedmont, Colombia. The new species can be distinguished from congeners by presenting the following unique combination of characters: a dark mid-lateral stripe starting at anteriormost scale of lateral line, a vertically elongated humeral blotch, absence of dark blotches on dorsal fin and at base of middle caudal-fin rays, a triangular dentigerous surface of the premaxilla, 5–6 dentary teeth, and 11–12 predorsal scales. Comparisons with congeners distributed in the piedmont region of Río Caquetá basin are presented and its relationships among species of Creagrutus is inferred from the available phylogenetic framework. 

scholarly journals Lophiobrycon weitzmani, a new genus and species of glandulocaudine fish (Characiformes: Characidae) from the rio Grande drainage, upper rio Paraná system, southeastern Brazil

2003 ◽  
Vol 1 (1) ◽  
pp. 11-19 ◽  
Author(s):  
Ricardo M. C. Castro ◽  
Alexandre C. Ribeiro ◽  
Ricardo C. Benine ◽  
Alex L. A. Melo
Keyword(s):  
New Species ◽  
Standard Length ◽  
New Genus ◽  
Rio Grande ◽  
Sister Group ◽  
Southeastern Brazil ◽  
Sister Group Relationship ◽  
New Genus And Species ◽  
Dorsal Fin ◽  
Adipose Fin

A new genus and species of glandulocaudine, Lophiobrycon weitzmani, is described based on specimens collected in headwater tributary streams of the rio Grande, upper rio Paraná system, State of Minas Gerais, southeastern Brazil. The inclusion of the new species in the phylogeny of the subfamily Glandulocaudinae proposed by Weitzman & Menezes (1998), reveals a sister group relationship between the new genus and the monophyletic group composed of Glandulocauda and Mimagoniates that currently form the tribe Glandulocaudini. The new species can be readily distinguished from all other species of the tribe by the autapomorphic presence in adult male individuals (with more than 23.9 mm standard length) of an adipose-fin whose base extends for almost the entire distance between the posterior terminus of the base of the dorsal fin and the base of the upper lobe of the caudal fin and averages approximately 25% standard length, along with the presence of globular expansions formed by the lepidotrichia and hypertrophied soft tissue in the middle portions of the first and second pectoral-fin rays. The diagnosis of the tribe Glandulocaudini is modified to accommodate the new genus.

Adelotremus leptus, a new genus and species of sabertooth blenny from the Red Sea (Teleostei: Blenniidae: Nemophini)

Zootaxa ◽  
2012 ◽  
Vol 3249 (1) ◽  
pp. 39 ◽  
Author(s):  
WILLIAM F. SMITH-VANIZ ◽  
JEAN MICHEL ROSE
Keyword(s):  
Red Sea ◽  
Lateral Line ◽  
New Genus ◽  
Gravid Female ◽  
Ventral Margin ◽  
New Genus And Species ◽  
Dorsal Fin ◽  
Gill Opening ◽  
Fin Ray ◽  
Fin Spines

Adelotremus leptus is described as a new genus and species of blenniid fish based on a single gravid female, 35.4 mmstandard length, collected from a polychaete tube in 15 m depth in the Red Sea near Sharm el Sheikh, Egypt. The genusdiffers primarily from other nemophin genera (except Xiphasia) in having pterygiophores of the dorsal-fin spines broadlycontacting robust vertebral neural spines, and the combination of dorsal-fin spines and rays IX, 19, total vertebrae 32,ventral margin of gill opening opposite dorsalmost 5th or 6th pectoral-fin ray and no lateral line. An identification key is provided for genera of the blenniid tribe Nemophini.

scholarly journals A world key to the genera of Elcanidae (Insecta, Orthoptera), with a Jurassic new genus and species of Archelcaninae from China

ZooKeys ◽  
2020 ◽  
Vol 954 ◽  
pp. 65-74
Author(s):  
Jun-Jie Gu ◽  
He Tian ◽  
Junyou Wang ◽  
Wenzhe Zhang ◽  
Dong Ren ◽  
...  
Keyword(s):  
New Species ◽  
Middle Jurassic ◽  
Plant Material ◽  
New Genus ◽  
Wing Venation ◽  
Unique Combination ◽  
New Genus And Species ◽  
Fossil Genus

A new fossil genus and species is described from the Middle Jurassic of China. The type of Sinoelcana minutagen. et sp. nov. has body and legs preserved. It is distinguished from all other elcanids by the unique combination of wing venation and stout ovipositor. The sickle-shaped ovipositor suggests that the new species had a preference for oviposition on plant material. A world key to the genera of Elcanidae is provided based on the wing venation.

Microlympiidae, a new milliped family from North America, and Microlympia echina, new genus and species (Diplopoda: Chordeumatida: Brannerioidea)

Zootaxa ◽  
2003 ◽  
Vol 243 (1) ◽  
pp. 1 ◽  
Author(s):  
WILLIAM A. SHEAR ◽  
WILLIAM P. LEONARD
Keyword(s):  
New Species ◽  
North America ◽  
New Genus ◽  
Jefferson County ◽  
Unique Combination ◽  
New Genus And Species ◽  
New Family

A new genus and species of milliped, Microlympia echina, is described from Jefferson County, Washington, USA. The new species cannot be placed in any existing milliped family, due to a unique combination of characters and at least two significant autapomorphies. The new Family Microlympiidae is therefore established, placed in the Superfamily Brannerioidea, and compared with the related families Tingupidae, Niponiosomatidae, and Branneriidae.

Allogynaspis flechtmanni, a new genus and species of the subfamily Macrochelinae (Acari: Mesostigmata: Macrochelidae) from southeastern Brazil, with comments on cheliceral dentition, reproductive strategies, and postepigynal platelets

Zootaxa ◽  
2018 ◽  
Vol 4455 (1) ◽  
pp. 150 ◽  
Author(s):  
G.W. KRANTZ
Keyword(s):  
New Species ◽  
National Park ◽  
Reproductive Strategies ◽  
New Genus ◽  
Southeastern Brazil ◽  
Unique Combination ◽  
New Genus And Species ◽  
Free Living ◽  
Forested Area ◽  
Dichotomous Key

Allogynaspis flechtmanni n. gen., n. sp. is described from litter bordering a stream in a forested area of Itatiaia National Park in southeastern Brazil. Although it shares a number of traits with the free-living macrochelid genera Nothrholaspis and Macrholaspis, the new species presents a unique combination of characters that argues against its inclusion in either genus, or in any other recognised macrochelid genus. A dichotomous key that distinguishes Allogynaspis from related macrocheline genera is included in the text.

Melanosternarchus amaru, a new genus and species of electric ghost knifefish (Gymnotiformes: Apteronotidae) from the Amazon Basin

Zootaxa ◽  
2018 ◽  
Vol 4378 (4) ◽  
pp. 451 ◽  
Author(s):  
MAXWELL J. BERNT ◽  
WILLIAM G. R. CRAMPTON ◽  
ALEXANDER B. ORFINGER ◽  
JAMES S. ALBERT
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Amazon Basin ◽  
New Genus ◽  
Species Group ◽  
Unique Combination ◽  
New Genus And Species ◽  
Statistical Support ◽  
Molecular Phylogenetic ◽  
Nuclear Locus

We describe Melanosternarchus amaru as a new genus and species of Apteronotidae from the deep channels of blackwater and clearwater tributaries of the Amazon River in Brazil and Peru. The new species superficially resembles members of the widespread “Apteronotus” bonapartii species group, from which it can be readily distinguished by expanded bones of the infraorbital laterosensory canal. It can further be distinguished from all other apteronotids by a unique combination of characters: reduced premaxillary dentition, a large gape, and an absence of scales from the entire dorsum. A molecular phylogenetic analysis using three mitochondrial loci and one nuclear locus (~3000 bp) places this genus as sister to Compsaraia, and these two genera together as a clade sister to Pariosternarchus; all nodes with strong statistical support. The clade formed by these three genera includes five species, four of which are restricted to the Amazon basin. The apparent habitat preference of the new species for low-conductivity blackwater and clearwater rivers has not been reported in other apteronotid species. 

New genus and species of subfamily Trinodinae (Coleoptera, Polyphaga, Dermestidae) from Lowermost Eocene French amber

2010 ◽  
Vol 19 (1) ◽  
pp. 54-69
Author(s):  
A.G. Kirejtshuk ◽  
J. Háva ◽  
A. Nel
Keyword(s):  
New Species ◽  
New Genus ◽  
Short Review ◽  
New Genus And Species ◽  
New Tribe ◽  
Fossil Records

In the paper six new species of the genus Oisenodes gen. nov. (Dermestidae, Trinodinae, Trinodini) are described: O. azari sp. nov., O. clavatus sp. nov., O. gallicus sp. nov., O. metepisternalis sp. nov., O. oisensis sp. nov. and O. transversus sp. nov. A new tribe Trinoparvini Hava, trib. nov. is established for the recent genus Trinoparvus Háva, 2004. Short review of known fossil records of the subfamily Trinodinae is given.

A new genus and two new species of Tarsonemidae (Acari: Heterostigmata) associated with bark beetles (Coleoptera: Curculionidae: Scolytinae) from Peru

Zootaxa ◽  
2021 ◽  
Vol 4966 (1) ◽  
pp. 41-53
Author(s):  
ALEXANDER A. KHAUSTOV ◽  
ALEXANDER V. PETROV ◽  
VASILIY B. KOLESNIKOV
Keyword(s):  
New Species ◽  
Bark Beetles ◽  
New Genus ◽  
New Genus And Species ◽  
Key To Species ◽  
Two New Species ◽  
A New Species

A new genus and species, Unguitarsonemus paradoxus n. gen., n. sp. and a new species, Pseudotarsonemoides peruviensis n. sp. (Acari: Trombidiformes: Tarsonemidae), are described based on phoretic females collected on bark beetles Phloeotribus pilula and Ph. biguttatus, respectively, from Peru. A key to species of the genus Pseudotarsonemoides is provided. 

Sign in / Sign up

Export Citation Format

Share Document