Monogenoidean parasites of Acestrorhynchus falcatus (Characiformes: Acestrorhynchidae) from Pará, Brazil: species of Diaphorocleidus and Rhinoxenoides n. gen. (Monogenoidea: Dactylogyridae)

2018 ◽  
Vol 93 (2) ◽  
pp. 208-219
Author(s):  
J.F. Santos Neto ◽  
N.G.S. Costa ◽  
G.B. Soares ◽  
M.V. Domingues
Keyword(s):  
New Species ◽  
Accessory Piece ◽  
Sister Group ◽  
Copulatory Organ ◽  
Morphological Characters ◽  
Ventral Anchor ◽  
Dorsal Anchor ◽  
North Eastern ◽  
Group Relationships ◽  
One New Species

AbstractTwo new species of Diaphorocleidus and one new species of Rhinoxenoides n. gen. are described from the gills of Acestrorhynchus falcatus (Bloch) from rivers of north-eastern Pará, Brazil. Diaphorocleidus jaymedeloyolai n. sp. is characterized by a male copulatory organ (MCO) possessing three counterclockwise coils; similar anchors with subtriangular superficial roots; a ventral bar with posteromedial projection; and hooks of pairs 1, 4 and 7 approximately three times longer than hook pair 5. Diaphorocleidus sclerocolpus n. sp. differs from its congeners by a dual-branched accessory piece articulated with the MCO and a sclerotized tubular vagina with a bottle-shaped vestibule. Rhinoxenoides n. gen. is proposed and is characterized by possessing: MCO sclerotized with clockwise coils; an accessory piece articulated to the base of MCO; a sinistroventral vaginal aperture; ventral anchor with conspicuous roots; dorsal anchor with superficial root five times longer than deep root; and absence of dorsal bar. The proposal of Rhinoxenoides n. gen. is also supported by its phylogenetic relationship with Protorhinoxenus prochilodi and species of Rhinoxenus, using 16 morphological characters, which resulted in the following hypothesis of sister-group relationships: Rhinoxenoides n. gen. [Protorhinoxenus (Rhinoxenus curimatae (R. nyttus (R. bulbovaginatus (R. guianensis, R. piranhus, R. euryxenus (R. arietinus, R. anaclaudiae)))))].

Monogenoids (Polyonchoinea, Dactylogyridae) from Hydrolycus armatus (Characiformes, Cynodontidae) with the description of a new species of Rhinoxenus and the proposal of a new genus from the Xingu River, Pará, Brazil

Zootaxa ◽  
2019 ◽  
Vol 4700 (2) ◽  
pp. 229-245 ◽  
Author(s):  
GEUSIVAM B. SOARES ◽  
KEILA X. MAGALHÃES ◽  
ANA CAROLINA SILVA ◽  
JÂNIO S. CARNEIRO ◽  
LUCINEIA L. BARBOSA ◽  
...  
Keyword(s):  
New Species ◽  
Male Copulatory Organ ◽  
Accessory Piece ◽  
Copulatory Organ ◽  
Distal Portion ◽  
Ventral Anchor ◽  
Xingu River ◽  
Copulatory Complex ◽  
One New Species ◽  
A New Species

One new species of Rhinoxenus Kritsky, Boeger & Thatcher, 1988 from the nasal cavities and four new species of Mymarothecioides n. gen. from the gills are described in Hydrolycus armatus (Jardine & Schomburgk). They were collected in the Xingu River, Pará, Brazil. Rhinoxenus cachorra n. sp. is characterized by having a ventral anchor with inconspicuous roots, and point with fish-hook-like termination; copulatory complex comprising a spiraled male copulatory organ (MCO) with two counterclockwise coils, and an accessory piece with an expanded, bifurcated distal portion. Mymarothecioides n. gen. is proposed and characterized for species without eyes, with or without accessory chromatic granules; copulatory complex comprising articulated MCO, accessory piece; MCO a broad arcuate tube; an accessory piece with a hooked termination in the distal portion; a dextro or midventral non-sclerotized vagina; an anteromedial projection on the ventral bar. Mymarothecium whittingtoni Kritsky, Boeger & Jégu, 1996 is transferred to Mymarothecioides n. gen. as Mymarothecioides whittingtoni (Kritsky, Boeger & Jégu, 1996) n. comb. 

scholarly journals New species of Urocleidoides (Monogenoidea: Dactylogyridae) from the gills of two species of Anostomidae from the Brazilian Amazon

2020 ◽  
Vol 29 (3) ◽  
Author(s):  
Marcos Sidney Brito Oliveira ◽  
João Flor Santos-Neto ◽  
Marcos Tavares-Dias ◽  
Marcus Vinicius Domingues
Keyword(s):  
New Species ◽  
Male Copulatory Organ ◽  
Accessory Piece ◽  
Brazilian Amazon ◽  
Copulatory Organ ◽  
Distal Portion ◽  
Anchor Point ◽  
Dorsal Anchor ◽  
First Time

Abstract Three species (2 new) of Urocleidoides are described and/or reported from the gills of Schizodon fasciatus and Laemolyta proxima (Anostomidae) from the Jari River in the eastern Brazilian Amazon. Urocleidoides jariensis n. sp. presents a sclerotized, tubular, spiral male copulatory organ (MCO) with one counterclockwise coil, a circular sclerotized tandem brim associated with the base of the MCO; a heavily sclerotized, funnel-shaped vaginal vestibule; and a broadly V-shaped ventral bar with anteromedial constriction and enlarged ends. Urocleidoides ramentacuminatus n. sp. has a sclerotized, tubular, spiral MCO with one counterclockwise coil; an accessory piece with a hook-shaped distal portion; and a dorsal anchor with a short, straight shaft; anchor point with ornamentation as sclerotized shredded filaments. Urocleidoides paradoxus is reported for the first time parasitizing S. fasciatus.

Dactylogyrids (Platyhelminthes, Monogenoidea) from the gills of Hoplias malabaricus (Characiformes: Erythrinidae) from coastal rivers of the Oriental Amazon Basin: species of Urocleidoides and Constrictoanchoratus n. gen.

2017 ◽  
Vol 92 (3) ◽  
pp. 353-368 ◽  
Author(s):  
K.D.C. Ferreira ◽  
A.R.O. Rodrigues ◽  
J.-M. Cunha ◽  
M.V. Domingues
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
Copulatory Organ ◽  
Ventral Anchor ◽  
Mato Grosso ◽  
Hoplias Malabaricus ◽  
The North ◽  
Coastal Rivers ◽  
Upper Paraná River Floodplain ◽  
Host Parasite

AbstractFive species of Urocleidoides (one new) and two new species of Constrictoanchoratus n. gen. are described in this study. All were collected from the gills of Hoplias malabaricus (Characiformes: Erythrinidae) captured in six localities of coastal rivers of the north-eastern sector the State of Pará (Oriental Amazon): Urocleidoides brasiliensis Rosim, Mendoza-Franco & Luque, 2011; Urocleidoides bulbophallus n. sp.; Urocleidoides cuiabai Rosim, Mendoza-Franco & Luque, 2011; Urocleidoides eremitus Kritsky, Thatcher & Boeger, 1986; Urocleidoides malabaricusi Rosim, Mendoza-Franco & Luque, 2011; Constrictoanchoratus lemmyi n. gen. n. sp.; and Constrictoanchoratus ptilonophallus n. gen. n. sp. This is the first reported occurrence of the four previously described species of Urocleidoides parasitizing H. malabaricus from streams in the Oriental Amazon Basin. The analysis of voucher specimens of U. eremitus parasitizing the gills of H. malabaricus from the Upper Paraná River floodplain in the limits of States of Paraná and Mato Grosso do Sul, Brazil, indicates that these specimens are members of a new species of Urocleidoides, described here as Urocleidoides paranae n. sp. Constrictoanchoratus n. gen. is proposed for the species with a male copulatory organ sclerotized, coiled, clockwise; ventral anchor with elongate superficial root, inconspicuous deep root; dorsal anchor with inconspicuous roots, and a constriction at the intersection between the shaft and the point. The host–parasite diversity scenario and host specificity of the species of Constrictoanchoratus n. gen. and Urocleidoides from the gills of H. malabaricus are also discussed in this study.

scholarly journals On a remarkable new species of <i>Tharsis</i>, a Late Jurassic teleostean fish from southern Germany: its morphology and phylogenetic relationships

Fossil Record ◽  
2019 ◽  
Vol 22 (1) ◽  
pp. 1-23 ◽  
Author(s):  
Gloria Arratia ◽  
Hans-Peter Schultze ◽  
Helmut Tischlinger
Keyword(s):  
New Species ◽  
Late Jurassic ◽  
Strong Support ◽  
Sister Group ◽  
Common Species ◽  
Upper Jurassic ◽  
Morphological Characters ◽  
Morphological Description ◽  
Sister Group Relationship ◽  
Southern Germany

Abstract. A complete morphological description, as preservation permits, is provided for a new Late Jurassic fish species (Tharsis elleri) together with a revision and comparison of some morphological features of Tharsis dubius, one of the most common species from the Solnhofen limestone, southern Germany. An emended diagnosis of the genus Tharsis – now including two species – is presented. The new species is characterized by a combination of morphological characters, such as the presence of a complete sclerotic ring formed by two bones placed anterior and posterior to the eye, a moderately short lower jaw with quadrate-mandibular articulation below the anterior half of the orbit, caudal vertebrae with neural and haemal arches fused to their respective vertebral centrum, and parapophyses fused to their respective centrum. A phylogenetic analysis based on 198 characters and 43 taxa is performed. Following the phylogenetic hypothesis, the sister-group relationship Ascalaboidae plus more advanced teleosts stands above the node of Leptolepis coryphaenoides. Both nodes have strong support among teleosts. The results confirm the inclusion of Ascalabos, Ebertichthys and Tharsis as members of this extinct family. Tharsis elleri n. sp. (LSID urn:lsid:zoobank.org:act:6434E6F5-2DDD-48CF-A2B1-827495FE46E6, date: 13 December 2018) is so far restricted to one Upper Jurassic German locality – Wegscheid Quarry near Schernfeld, Eichstätt – whereas Tharsis dubius is known not only from Wegscheid Quarry, but also from different localities in the Upper Jurassic of Bavaria, Germany, and Cerin in France.

A taxonomic study of Chinese species of Copidosomopsis Girault (Hymenoptera: Encyrtidae)

Zootaxa ◽  
2018 ◽  
Vol 2490 (1) ◽  
pp. 55 ◽  
Author(s):  
FANG YU ◽  
YAN-ZHOU ZHANG ◽  
CHAO-DONG ZHU ◽  
LI-HONG TU
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Taxonomic Study ◽  
One New Species

Five species of Copidosomopsis from China are reviewed, keyed and illustrated. One new species, Copidosomopsis orientalis Yu & Zhang sp. nov. is described, and C. bohemicus (Hoffer), C. meridionalis Kazmi & Hayat and C. nacoleiae (Eady) are newly recorded from China. Photomicrographs are provided to illustrate morphological characters of the species.

A taxonomic review and phylogeny of the genera Hoplopisthius Senna, 1892 and Carcinopisthius Kolbe, 1892 (Coleoptera: Brentidae, Hoplopisthiini)

Zootaxa ◽  
2010 ◽  
Vol 2516 (1) ◽  
pp. 1 ◽  
Author(s):  
ANTOINE MANTILLERI
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Maximum Parsimony ◽  
New Guinea ◽  
Morphological Characters ◽  
Identification Key ◽  
Generic Level ◽  
Australian Species ◽  
Taxonomic Review ◽  
One New Species

The genera Hoplopisthius and Carcinopisthius are reviewed. All the species are redescribed and illustrated and an updated identification key and distributional maps are provided. One new species from New Guinea is described (Hoplopisthius maximus n. sp.) and two new synonymies are proposed: Hoplopisthius celebensis Kolbe, 1892 = H. trichemerus Senna, 1892, n. syn. and Carcinopisthius lamingtoni Damoiseau, 1987 = C. forcipitiger Damoiseau, 1987, n. syn. Phylogenetic analysis using PAUP (maximum parsimony) was performed using 25 morphological characters of adults. This analysis shows the group Hoplopisthius + Carcinopisthius is monophyletic, but Carcinopisthius alone is paraphyletic. Nomenclatural changes at the generic level are made to reconcile nomenclature and phylogeny: Hoplopisthius is preserved; Carcinopisthius is downgraded to the rank of subgenus for the two oriental species H. oberthueri and H. fruhstorferi; and Pseudotaphroderes is resurrected as a third subgenus and includes all New-Guinean and Australian species.

Description of Ditylenchus paraparvus n. sp. from Iran with an updated list of Ditylenchus Filipjev, 1936 (Nematoda: Anguinidae)

Zootaxa ◽  
2019 ◽  
Vol 4651 (1) ◽  
pp. 85-113
Author(s):  
KOBRA HASHEMI ◽  
AKBAR KAREGAR
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Valid Species ◽  
Morphometric Data ◽  
Body Width ◽  
Pharyngeal Bulb ◽  
Lateral Field ◽  
The World ◽  
Short Body ◽  
One New Species

During a survey, 12 known and one new species of Ditylenchus Filipjev, 1936 were collected from southern provinces of Iran during 2013–2017. Ditylenchus paraparvus n. sp. is characterised by a short body length (441–543 µm), lateral field with four lines, delicate and short stylet (6–7.5 µm) with small rounded or posteriorly sloping knobs, pyriform and offset basal pharyngeal bulb, V = 67.7–76.4, short post-vulval uterine sac less than one vulval body width long, small spicules (12.5–15 µm) and almost cylindrical tail (71–90 µm) with rounded end. Morphometric data of studied species are presented and intraspecific variation of their morphometrics and morphological characters is discussed. The list of the world Ditylenchus species is updated, and a dichotomous identification key and an updated tabular compendium for 63 valid species is provided. 

Phylogeny and description of Eknomia, a morphologically unusual new genus of Neotropical Cryptinae (Hymenoptera, Ichneumonidae), with three new species

Zootaxa ◽  
2012 ◽  
Vol 3237 (1) ◽  
pp. 35 ◽  
Author(s):  
BERNARDO F. SANTOS ◽  
ALEXANDRE P. AGUIAR
Keyword(s):  
New Species ◽  
New Genus ◽  
Sister Group ◽  
Morphological Characters ◽  
Dorsal Valve ◽  
Southern Brazil ◽  
Distinct Genus ◽  
Three New Species ◽  
Equal Weighting

The Cryptini Eknomia Santos et Aguiar gen. nov. is proposed, described, and cladistically compared with representativespecies of 40 outgroup genera from twelve cryptine subtribes. A total of 98 morphological characters were evaluated. Allanalyses, conducted in TNT under implied and equal weighting, clearly suggest that Eknomia is a monophyletic groupand can be treated as a distinct genus. Its likely sister group, however, varied among different analyses and could not beascertained. The relationships of the new genus are therefore unclear, and because of this it is not assigned to any of thecurrently recognized subtribes. Eknomia can be diagnosed mainly by the anterior transverse carina of propodeum entirelyabsent; propodeum more or less uniformly strigate; clypeus almost entirely flattened; ovipositor stout, with compressed,minutely serrate flange at apex of dorsal valve, subapically crossed by a subvertical line; first metasomal spiracle placedat tergite midlength or nearly so; and hind margin of metanotum with tooth-like projections. The species E. nigra Santoset Aguiar, sp. nov., E. rubra Santos et Aguiar, sp. nov. and E. propodeator Santos et Aguiar, sp. nov. are described and illustrated. The genus is recorded from Colombia to southern Brazil.

The Madagascan genus Dolurgocleptes Schedl (Coleoptera: Curculionidae, Scolytinae): description of a new species and transfer to the tribe Polygraphini

Zootaxa ◽  
2009 ◽  
Vol 2014 (1) ◽  
pp. 41-50 ◽  
Author(s):  
BJARTE H. JORDAL
Keyword(s):  
New Species ◽  
Cytochrome Oxidase ◽  
Elongation Factor ◽  
Morphological Characters ◽  
Molecular Data ◽  
Cytochrome Oxidase I ◽  
Elongation Factor 1Α ◽  
North Eastern ◽  
A New Species

A new species of the Malagasy genus Dolurgocleptes Schedl, 1965 is described and illustrated. This is the second species known for the genus, which is restricted to the montane rainforests of north-eastern Madagascar. Dolurgocleptes is transferred from the tribe Dryocoetini to Polygraphini and placed near Polygraphus Erichson, based on examination of internal and external morphological characters and molecular data from Elongation Factor-1α and Cytochrome Oxidase I.

scholarly journals Preliminary Analysis of Phylogenetic Relationships Among Palaearctic Simuliinae (Diptera, Simuliidae) Inferred From Morphological Characters

2012 ◽  
Vol 46 (6) ◽  
pp. 31-48
Author(s):  
K. B. Sukhomlin
Keyword(s):  
Phylogenetic Relationships ◽  
Preliminary Analysis ◽  
Sister Group ◽  
Morphological Characters ◽  
Consensus Trees ◽  
The Matrix ◽  
Group Relationships

Abstract Phylogenetic relationships among the Palaearctic genera of the subfamily Simuliinae are analyzed based on the matrix of 100 morphological characters and 37 taxa, including 6 outgroups. Parsimonic analysis was resulted in 3 consensus trees (weighting based on CI, RI and RC indices) of slightly different topology, which show monophyly of the subfamily Simuliinae, tribes Stegopternini, Nevermanniini, Wilhelmiini and Simuliini, and a possible sister-group relationships between the latter two tribes. Tribe Ectemniini is apparently a paraphyletic formation. The analysis also supports transferring of the Stegopternini and Nevermanniini from Prosimuliinae to Simuliinae.

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