Morphological characterization of Trichotylenchus gorganiensis n. sp. (Nematoda: Dolichodoridae) and photomicrographs of several other species of the subfamily Telotylenchinae Siddiqi, 1960

Zootaxa ◽  
2018 ◽  
Vol 4526 (4) ◽  
pp. 447
Author(s):  
REZA GHADERI ◽  
AKBAR KAREGAR ◽  
ESMAEIL MIRAEIZ
Keyword(s):  
New Species ◽  
Morphological Characterization ◽  
The Body ◽  
Morphometric Data ◽  
Tail Region ◽  
Body Contour ◽  
Closely Related Species ◽  
Pharyngeal Bulb ◽  
Anal Sac

Trichotylenchus gorganiensis n. sp. is described and illustrated based on morphological and morphometric data. The new species is characterized by its 760–1073 µm long body, conoid-rounded lip region continuous with the body contour and bearing 5–7 fine striae, 22.0–24.5 µm long stylet, basal pharyngeal bulb offset or slightly overlapping intestine, post-anal sac extending 50–73 % of the tail region, and cylindrical or subclavate tail with a striated terminus. Differences of the new species from the closely related species T. astriatus, T. astriatoides, T. changlingensis and T. papyrus are discussed. Photomicrographs and several taxonomic notes on 13 other species of Telotylenchinae, collected from Iran, are provided. 

A new and four known species of Diphtherophora (Nematoda: Diphtherophoridae) from Iran, with a diagnostic compendium of its species

Zootaxa ◽  
2017 ◽  
Vol 4365 (3) ◽  
pp. 311
Author(s):  
REZA GHADERI ◽  
LEILA KASHI ◽  
HOSSEIN MIRBABAEI KARANI ◽  
AKBAR KAREGAR
Keyword(s):  
New Species ◽  
Species Identification ◽  
Related Species ◽  
New Records ◽  
The Body ◽  
Body Contour ◽  
Closely Related Species ◽  
Morphometric Characters ◽  
Nematode Fauna

A new and four known species of the genus Diphtherophora—D. geraerti sp. n., D. caudata, D. obesa, D. perplexans and D. tenera—were collected and identified from different plants and localities in Iran. Morphological and morphometric characters of Diphtherophora geraerti sp. n. are compared with those of closely-related species, including D. siddiqii, D. brevicollis, D. lata, D. obesa, D. citri, D. vasilevi and D. vitoshae. Females of the new species have a head continuous with the body contour, spear 11–14 µm in length, rod-shaped spermatozoa and conical tail with bluntly rounded to hemispherical terminus. Males have two ventromedian neck papillae located 22–25 and 52–60 µm from the anterior end, and two ventromedian supplements at 11–13 and 75–80 µm anterior from cloacal aperture, respectively. All Diphtherophora species recovered as part of the present study are new records for the Iranian nematode fauna. Finally, a diagnostic compendium is given, to assist with species identification in the genus. 

Molecular and morphological characterization of Paurodontoides siddiqii n. sp. (Nematoda: Hexatylina, Sphaerulariidae) associated with bark samples of Pinus eldarica from western Iran

2018 ◽  
Vol 94 ◽  
Author(s):  
M. Esmaeili ◽  
B. Golhasan ◽  
W. Ye ◽  
R. Heydari
Keyword(s):  
New Species ◽  
Excretory Pore ◽  
Phylogenetic Analyses ◽  
Morphological Characterization ◽  
Body Contour ◽  
Pharyngeal Bulb ◽  
Lateral Field ◽  
Molecular Phylogenetic ◽  
Posterior Extension ◽  
Stylet Length

Abstract A new species of Paurodontoides, P. siddiqii n. sp., is described and illustrated based on its morphological, morphometric, and molecular characters. The new species is characterized by a female 550–729 μm long, lip region continuous with body contour, stylet length 7.0–8.0 μm long or c. 1.0–1.2 times the lip region diameter, lateral fields with four smooth incisures, excretory pore at 85–125 μm from anterior end located at the base of the pharyngeal bulb or posterior to it, basal pharyngeal bulb with a short posterior extension projecting into the intestine, monodelphic–prodelphic reproductive system with prominent 19–22 μm long post-uterine sac, and elongate conoid tail with a filiform terminus. The new species is compared with two known species of the genus. It differs from the type species of the genus, P. linfordi, by having slightly shorter stylet, lateral field with smooth incisures, different position of the excretory pore, and absence of male. Compared to P. latus, the new species has a shorter body, shorter stylet, different position of the excretory pore, female tail shape and absence of male. The new species was also compared with close species of the genus Paurodontus because of lateral field marked with four lines, asymmetrical stylet knobs and absence of male. Molecular phylogenetic studies of the new species using partial sequences of 18S rDNA revealed that it forms a clade with a species of the genus Ficotylus. In phylogenetic analyses using partial sequences of the 28S rDNA D2-D3 domain, the new species formed a monophyletic group with a species of the genus Veleshkinema and Sphaerularia spp. (Sphaerulariinae).

Molecular and morphological characterization of new species of hypogean Paradraculoides (Schizomida: Hubbardiidae) from the arid Pilbara bioregion of Western Australia

2018 ◽  
Vol 46 (3) ◽  
pp. 507 ◽  
Author(s):  
Volker W. Framenau ◽  
Zoë R. Hamilton ◽  
Terrie Finston ◽  
Garth Humphreys ◽  
Kym M. Abrams ◽  
...  
Keyword(s):  
New Species ◽  
Western Australia ◽  
Morphological Characterization

A new tardigrade Doryphoribius maasaimarensis sp. nov. (Eutardigrada: Hypsibiidae) from Kenya

Zootaxa ◽  
2013 ◽  
Vol 3630 (2) ◽  
pp. 359-368 ◽  
Author(s):  
PAULO FONTOURA ◽  
OSCAR LISI ◽  
GIOVANNI PILATO
Keyword(s):  
New Species ◽  
Body Length ◽  
The Body ◽  
Moss Sample ◽  
Pharyngeal Bulb ◽  
Game Reserve

A new tardigrade, Doryphoribius maasaimarensis sp. nov., is described from a moss sample collected in Masai Mara Game Reserve, Kenya. The new species is characterized by having a reticulate dorsal cuticle with small tubercles; nine transverse rows of dorsal gibbosities (configuration IX:4-6-4-6-4-6-4-4-2); pharyngeal bulb with two macroplacoids and no microplacoid; claws with short and thin accessory points; small, smooth lunules under the claws. The new species is most similar to Doryphoribius zyxiglobus (Horning, Schuster & Grigarick, 1978). Both exhibit two macroplacoids, similar cuticular pattern and the same configuration of gibbosities. However, in Doryphoribius maasaimarensis sp. nov. the cu-ticular tubercles are less close, buccal tube slightly longer with respect to the body length, more gradual curvature of the buccal tube, different claws shape and thinner accessory points.

Description of Diploplastron dehorityi sp. nov. (Entodiniomorphida, Ophryoscolecidae), a new rumen ciliate from Brazilian sheep (Ovis aries)

Zootaxa ◽  
2017 ◽  
Vol 4258 (6) ◽  
pp. 581 ◽  
Author(s):  
FRANCIANE CEDROLA ◽  
ROBERTO JÚNIO PEDROSO DIAS ◽  
ISABEL MARTINELE ◽  
MARTA D’AGOSTO
Keyword(s):  
New Species ◽  
Body Shape ◽  
The Body ◽  
Ovis Aries ◽  
Domestic Sheep ◽  
Diagnostic Features ◽  
Ciliate Community ◽  
The Right ◽  
A New Species

To date the genus Diploplastron comprised only one species of ophryoscolecid ciliate, Diploplastron affine, which is characterized by having two retractable ciliary zones in the anterior end of the body, two slender and juxtaposed skeletal plates on the right side, a rod shape macronucleus, and two contractile vacuoles. During study on the characterization of rumen ciliate community composition in Brazilian domestic sheep, we observed ciliates with atypical morphology but with diagnostic features of genus Diploplastron. This study describes Diploplastron dehorityi, a new species of ophryoscolecid ciliate, that differs from D. affine, primarily, in the morphology of skeletal plates, morphology of nuclear apparatus and body shape. In addition to the similarities between the new species and congener species, D. dehorityi has some morphological similarities to species of genus Eremoplastron.

Morphology and molecular phylogeny of ornamental freshwater prawns of the genus Macrobrachium (Decapoda, Caridea, Palaemonidae) from China with the description of a new species

Crustaceana ◽  
2021 ◽  
Vol 94 (10) ◽  
pp. 1201-1220
Author(s):  
Qinghua Chen ◽  
Wenjian Chen ◽  
Yuanwei Hu ◽  
Ka Yan Ma ◽  
Zhaoliang Guo
Keyword(s):  
New Species ◽  
Colour Pattern ◽  
Molecular Evidence ◽  
Cytochrome Oxidase Subunit ◽  
Mitochondrial Cytochrome Oxidase Subunit ◽  
Closely Related Species ◽  
Distribution Maps ◽  
Mitochondrial Cytochrome Oxidase ◽  
A New Species

Abstract This study dealt with three species of ornamental palaemonid freshwater prawns of the genus Macrobrachium, based on morphological and molecular analysis. Macrobrachium pentazona He, Gao & Guo, 2009; M. laevis Zheng, Chen & Guo, 2019; and M. bilineare sp. nov. are distinguishable from closely related species by segmental ratios, spination of the second pereiopods and the slender scaphocerite. Macrobrachium bilineare sp. nov. can easily be recognized in the field by its bright colour pattern. Molecular evidence of mitochondrial cytochrome oxidase subunit I (COI), also supports the characterization of this new species, raising the total number of Macrobrachium spp. known from China to 41. Detailed description, illustrations, colour photographs, habitat information, distribution maps and features of conservation significance are also briefly discussed.

Remarks on Doryphoribius flavus (Iharos, 1966), and description of three new species (Tardigrada, Hypsibiidae)

Zootaxa ◽  
2011 ◽  
Vol 2834 (1) ◽  
pp. 17 ◽  
Author(s):  
OSCAR LISI
Keyword(s):  
South Africa ◽  
New Species ◽  
Buccal Cavity ◽  
The Body ◽  
Similar Species ◽  
Pharyngeal Bulb ◽  
Medial Margin ◽  
Cuticular Ornamentation ◽  
Three New Species ◽  
Shape And Size

The author examined paratypes of Doryphoribius flavus (Iharos, 1966) (formerly Hypsibius (Isohypsibius) flavus Iharos, 1966), and the holotype and paratypes of D. citrinus (Maucci, 1972) (which is considered a junior synonym of D. flavus), furnishing new details, both qualitative and metric, to the description of the species, and providing a discussion on the synonymy. Specimens, previously attributed to these species, from Amazonia, South Africa, and Bali, were also examined and proved to belong to three species new to science: Doryphoribius amazzonicus sp. nov., Doryphoribius bindae sp. nov., and Doryphoribius solidunguis sp. nov. Doryphoribius amazzonicus sp. nov. has a reticular cuticular ornamentation with ridges forming a tubercle at each crossing; legs lacking cuticular ornamentation; buccal tube slightly longer than in D. flavus with respect to the body length, stylet supports inserted on the buccal tube in a slightly more caudal position; peribuccal papulae present; teeth and ridges appear to be absent in the buccal cavity; pharyngeal bulb with apophyses and two macroplacoids; claws slightly shorter and stouter than in D. flavus. Accessory points and smooth lunules present. No other cuticular thickening present on the legs. Doryphoribius bindae sp. nov. has a delicate reticular cuticular ornamentation formed by narrow ridges with a tiny tubercle at each crossing; a fine reticular design present on the legs; peribuccal papulae present, buccal armature with only one dorsal tooth near the medial margin of each stylet sheath. Pharyngeal bulb with apophyses and two macroplacoids. Accessory points and small lunules present. No other cuticular thickening present on the legs. Doryphoribius solidunguis sp. nov. has a very obvious reticular cuticular ornamentation with an irregular shape and size mesh (usually large) delimited by thick, sometimes protruding ridges that may form tubercles at crossings; cuticle of the legs smooth; peribuccal papulae present and two pairs of dorsal teeth lying along the anterior margins of the stylets sheaths. Pharyngeal bulb with apophyses and two macroplacoids. The claws are large and stout with very small accessory points; lunules present, those of the inner claws more evident than in similar species; a cuticular bar is present on the first three pairs of legs. Doryphoribius flavus was considered widespread, but this work exposing cryptic species indicates that the geographic distribution is more restricted.

Description of two new species of the genus Thaparocleidus Jain, 1952 (Monogenea, Dactylogyridae) from freshwater fish in India: morphological and molecular phylogenetic evidence

2012 ◽  
Vol 87 (2) ◽  
pp. 160-173 ◽  
Author(s):  
A. Chaudhary ◽  
H.S. Singh
Keyword(s):  
New Species ◽  
Large Subunit ◽  
Closely Related Species ◽  
Molecular Biological Analysis ◽  
Wallago Attu ◽  
Two New Species ◽  
Molecular Phylogenetic ◽  
Secondary Structure Models ◽  
Large Subunit Rdna

AbstractThe present paper describes the taxonomy of two new monogeneans, namely, Thaparocleidus longiphallus sp. n. and T. siloniansis sp. n., based on morphological, morphometric and molecular biological analysis, collected from the fish Wallago attu (Bloch & Schn.) and Silonia silondia (Ham.), respectively, at Meerut, UP, India. Genetic characterization of the two new species is based on sequence analyses of the rDNA 28S gene using neighbour-joining and maximum-parsimony techniques. These methods are congruent in depicting T. longiphallus sp. n. and T. siloniansis sp. n. as closely related species, but distinct from each other and forming a subclade with other species of the genus Thaparocleidus Jain, 1952. Secondary-structure models of the large subunit rDNA of the two species were also predicted using a combined comparative and thermodynamic approach. Molecular morphometric and phylogenetic relationships of the isolates of the Thaparocleidus species are discussed in detail.

Notes on some lesser known crickets of the tribe Podoscirtini (Podoscirtinae: Gryllidae: Orthoptera) from India 

Zootaxa ◽  
2020 ◽  
Vol 4821 (1) ◽  
pp. 49-70
Author(s):  
ASHOK KUMAR MEENA ◽  
RAJAMANI SWAMINATHAN ◽  
RAJENDRA NAGAR
Keyword(s):  
New Species ◽  
Morphological Characteristics ◽  
Morphological Characterization ◽  
Tropical Region ◽  
Two New Species

The present paper deals with a description of two new species of crickets of the subfamily Podoscirtinae (Orthoptera: Gryllidae), Trelleora khasiana sp. nov. and Indotrella maculata sp. nov., from India; besides, some additional morphological characteristics of the already reported species, Indotrella angusta Gorochov, 2003 is also presented. The morphological characterization of these two new species is supported with suitable line diagrams and plates. A checklist of crickets of Podoscirtinae for the Asia-tropical region is included.

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. 

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