One new and two known species of Aporcelinus Andrássy, 2009 and a new species of Coomansinema Ahmad & Jairajpuri, 1989 (Nematoda: Dorylaimida)

Nematology ◽  
2014 ◽  
Vol 16 (3) ◽  
pp. 303-322 ◽  
Author(s):  
Maria Teresa Vinciguerra ◽  
Maria Teresa Vinciguerra ◽  
Lara Orselli ◽  
Maria Teresa Vinciguerra ◽  
Lara Orselli ◽  
...  
Keyword(s):  
New Species ◽  
Genital System ◽  
General Morphology ◽  
Female Genital System ◽  
First Time ◽  
Reproductive Apparatus ◽  
A New Species ◽  
Almost Continuous ◽  
Female Genital

Coomansinema istvani sp. n. is described from Ecuador, and is characterised by its relatively small size (L = 0.95-1.51 mm), lip region almost continuous with body profile with partly amalgamated lips, odontostyle slightly sinuate, with wide lumen, 20-27 μm long, female reproductive apparatus didelphic, vulva transverse, pre-rectum very short, mainly in female, 8-9 weakly developed, spaced, ventral pre-cloacal supplements, tail short (c′ = 0.6-1.0), tail convex-conoid in male and cupola-shaped, with a short finger-like process dorsally oriented in female. An updated list of the species of Coomansinema and a key to their identification is also provided. In addition, one new and two known species of Aporcelinus are reported. Aporcelinus altitudinalis and A. seychellensis are described on the basis of more numerous specimens and the male of A. seychellensis is described for the first time; it is similar to the female in general morphology and is characterised by a series of 7-9 spaced ventromedian supplements in addition to the cloacal pair with two supplements in the range of the spicules. Aporcelinus reyesi sp. n. is characterised by a 1.69-1.92 mm long body, lip region truncate, set off by a constriction, lips distinct with prominent papillae, odontostyle straight, with wide lumen, 29-36 μm long, female genital system didelphic-amphidelphic, uterus tripartite, containing up to five small eggs, vulva transverse, 13 male supplements, the last three in the range of the spicules. Tail 1.0-1.5 anal body diam. long, conical with acute tip, ventrally slightly convex, dorsally first convex and then concave, often appearing bent dorsad.

Mononchida (Nematoda) from Silent Valley National Park, India

Zootaxa ◽  
2013 ◽  
Vol 3635 (3) ◽  
pp. 224-236
Author(s):  
TABINDA NUSRAT ◽  
ASHHER ANJUM ◽  
WASIM AHMAD
Keyword(s):  
New Species ◽  
National Park ◽  
Buccal Cavity ◽  
Anterior Part ◽  
Genital System ◽  
Body Diameter ◽  
Female Genital System ◽  
First Time ◽  
A New Species ◽  
Female Genital

Four known and a new species of nematodes belonging to the Order Mononchida Jairajpuri, 1969 are described and illustrated from Silent Valley National Park, India. Cobbonchus vulvastriatus n. sp. has 0.92–0.11 mm long body; buccal cavity 25–27×12–13 μm, dorsal tooth comparatively large with its apex at 72–81% from base of stoma; subventral teeth slightly smaller with their apices at 40–41% from the base of stoma; female genital system amphidelphic, 1–3 pre-vulval and 2–4 post-vulval cuticular infoldings present; spicules 1.2–1.4 times the cloacal body diameter long; gubernaculum trough-shaped with distal thickening; lateral guiding pieces small; ventromedian supplements six, spaced; tail conoid, curved ventrad with a strong angular bending, slender portion of tail about twice the anterior part; caudal glands well developed, arranged in tandem, spinneret terminal. Clarkus sheri (Mulvey, 1967) Jairajpuri, 1970; Mylonchulus amurus Khan & Jairajpuri, 1979; Mylonchulus mulveyi Jairajpuri, 1970 and Mylonchulus paraindex Ahmad, Baniyamuddin & Jairajpuri, 2005 are recorded for the first time from this park.

A new species of the rare nematode genus Rostrulium Siddiqi, 1995 (Nematoda: Dorylaimida: Tylencholaimidae) from India

Zootaxa ◽  
2019 ◽  
Vol 4550 (4) ◽  
pp. 573
Author(s):  
MD. NIRAUL ISLAM ◽  
ZARRIN IMRAN ◽  
WASIM AHMAD
Keyword(s):  
New Species ◽  
Western Ghats ◽  
Anterior Part ◽  
Original Description ◽  
Genital System ◽  
Neck Length ◽  
Female Genital System ◽  
Basal Bulb ◽  
A New Species ◽  
Female Genital

Rostrulium indicum sp. n. is described and illustrated from Western Ghats, India. The new species is characterized by having a 2.1 mm long body; lip region offset by slight constriction; odontostyle 17.5 µm and odontophore 18 µm long, guiding ring single; pharynx with slender anterior part which expands gradually into the cylindrical basal bulb occupying about 30% of total neck length; female genital system didelphic-amphidelphic, transverse vulva, short rounded conoid tail and male with 40 µm long spicules, lateral guiding pieces and three spaced ventromedian supplements. This is the first report of this rare genus since its original description from Cameroon. 

Description of Aporcella minor sp. n. (Dorylaimida: Aporcelaimidae) from Iran, with an updated taxonomy of the genus

Nematology ◽  
2020 ◽  
pp. 1-12
Author(s):  
Nasir Vazifeh ◽  
Gholamreza Niknam ◽  
Arezoo Naghavi ◽  
Habibeh Jabbari ◽  
Reyes Peña-Santiago
Keyword(s):  
New Species ◽  
Bayesian Inference ◽  
Genital System ◽  
Neck Length ◽  
Molecular Analyses ◽  
Female Genital System ◽  
A New Species ◽  
Female Genital ◽  
Emended Diagnosis ◽  
Cultivated Soils

Summary A new species belonging to the genus Aporcella, collected in cultivated soils of East Azarbaijan province, Iran, is described and illustrated. The new species is characterised by its 1.08 (1.05-1.15) mm long body, two-layered cuticle, lip region offset by constriction and 12 (11-13) μm broad, odontostyle 13.0 (12.5-14.0) μm long or nearly equal to lip region diam., neck 310 (293-325) μm long, pharyngeal expansion 137 (128-144) μm long, occupying 43-45% of the total neck length, female genital system didelphic-amphidelphic, uterus simple, 34-48 μm long, vulva transverse (V = 59 (58-61)), tail conical with finely rounded terminus (30 (29-33) μm long, c = 34 (33-36), c′ = 1.5 (1.4-1.6)), and male absent. Molecular analyses, using Bayesian inference based on partial LSU sequences, confirm the monophyly of Aporcella as well as its clustering with other dorylaimid taxa characterised by the absence of pars refringens vaginae. The taxonomy of the genus is updated, with an emended diagnosis, list of species, key to their identification, and a compendium of the main morphometrics of species/populations described since the last available revision.

Description of Tylencholaimus discus sp. n. (Nematoda, Dorylaimida, Tylencholaimidae) from Iran

Zootaxa ◽  
2019 ◽  
Vol 4551 (3) ◽  
pp. 379
Author(s):  
BEHROUZ GOLHASAN ◽  
RAMIN HEYDARI ◽  
REYES PEÑA-SANTIAGO
Keyword(s):  
New Species ◽  
Anterior Region ◽  
Genital System ◽  
Neck Length ◽  
Natural Areas ◽  
Posterior Branch ◽  
Body Diameter ◽  
Female Genital System ◽  
A New Species ◽  
Female Genital

A new species of the genus Tylencholaimus, collected in natural areas of Iran, is described and illustrated, including SEM observations. Tylencholaimus discus sp. n. is characterized by its 0.65–0.76 mm long body, lip region offset by weak constriction and 7–7.5 µm broad with a conspicuous perioral disc, odontostyle 6–7 µm long, odontophore 9–10.5 µm long and visibly flanged rather than knobbed, neck 230–259 µm long with anterior region weakly muscular and basal expansion 98–125 µm long or occupying 42–49% of total neck length, female genital system mono-prodelphic, posterior branch reduced to a uterine sac 2–20 µm long or much shorter (0.1–0.6 times) than body diameter but very occasionally consisting of uterus, sphincter and a small terminal mass all together measuring 35–40 µm long, V = 65–74, tail short and rounded (13–17 µm, c = 41–57, c’ = 0.6–0.8), and male unknown. 

Description of Crassolabium unicum sp. n. (Nematoda: Dorylaimida: Qudsianematidae) from Vietnam

Zootaxa ◽  
2021 ◽  
Vol 4970 (1) ◽  
pp. 189-194
Author(s):  
THI ANH DUONG NGUYEN ◽  
REYES PEÑA-SANTIAGO
Keyword(s):  
New Species ◽  
Anterior Part ◽  
Natural Habitat ◽  
Genital System ◽  
Neck Length ◽  
Caudal Region ◽  
Wide Aperture ◽  
Female Genital System ◽  
Female Genital

Crassolabium unicum sp. n., collected from a natural habitat in Vietnam, is described and illustrated. The new species is characterized by its 0.77–0.94 mm long body, three-layered cuticle, lip region offset by depression and 12–13.5 µm broad, odontostyle 13.5–15 µm long with wide aperture occupying 36–46% of its length, neck 235–260 µm long, pharyngeal expansion 117–131 µm long or occupying 47–52% of total neck length, anterior part of intestine presenting very distinct folds, female genital system didelphic-amphidelphic, uterus simple and 28–43 µm or 0.7–0.9 body diameters, vulva transverse (V = 45–52), prerectum bearing a blind postrectal sac, caudal region short and rounded (21–25 µm, c = 45–61, c’ = 0.6–0.8) with two (dorsal and ventral) lacunae between outer and intermediate cuticle layers, and male unknown. It is compared with the similar representatives of the genus. 

Morphometrics and molecular analysis of the free-living nematode, Belondira bagongshanensis n. sp. (Dorylaimida, Belondiridae), from China

2016 ◽  
Vol 91 (1) ◽  
pp. 7-13 ◽  
Author(s):  
W.J. Wu ◽  
X. Huang ◽  
H. Xie ◽  
K. Wang ◽  
C.L. Xu
Keyword(s):  
New Species ◽  
Anterior Part ◽  
Neck Length ◽  
Free Living ◽  
Forest Park ◽  
Anterior Branch ◽  
Female Genital System ◽  
Free Living Nematode ◽  
A New Species ◽  
Female Genital

AbstractA new species, Belondira bagongshanensis n. sp., extracted from soil under grass in Bagongshan Forest Park, Anhui Province, China, is described and illustrated. The new species is mainly characterized by a body length 1.6–2.1 mm; cephalic framework moderately sclerotized; odontostyle robust with a distinct lumen; anterior part of pharynx with a distinct fusiform swelling, bearing distinct sclerotized valve plates and basal expansion occupying about three-fifths of the total neck length; female genital system mono-opisthodelphic and anterior branch 0.8–1.6 times the corresponding body diameter; tail short and hemispheroid; male spicules 36–49 μm long and two widely spaced ventromedian supplements. The new species is close to B. wajahati, B. golden and B. eugeniae in possessing a short tail, a robust odontostyle with a distinct aperture and a moderately sclerotized cephalic framework. New sequences of 18S rDNA and the D2–D3 region of 28S rDNA of the new species were also identified.

scholarly journals Two new species of the genus Coomansinema Ahmad and Jairajpuri, 1989 (Nematoda: Dorylaimida) with a key to its species

2019 ◽  
Vol 56 (1) ◽  
pp. 42-52
Author(s):  
W. Ahmad ◽  
P. Mushtaq ◽  
S. Kumar ◽  
Keyword(s):  
New Species ◽  
Valid Species ◽  
Medium Size ◽  
Genital System ◽  
Anterior Position ◽  
Two New Species ◽  
Female Genital System ◽  
Female Genital

SummaryTwo new species of the genus Coomansinema Ahmad and Jairajpuri, 1989 are described and illustrated. C. japonicum n. sp. is characterized by having medium size body (L= 1.40 – 1.45 mm); lip region truncate with completely amalgamated lips; amphideal fovea goblet – shaped; 16 – 20 μm long odontostyle; 23 – 25 μm long odontophore; comparatively anterior position of the second pair of pharyngeal glands; amphidelphic female genital system; longitudinal vulva; males with 48 – 54 μm long spicules; 7 – 8 spaced ventromedian supplements and tail long filiform in female and short conoid in male. C. longicaudatum n. sp. is characterized by having medium size body (L= 1.1 – 1.3 mm); lip region truncate, continuous with completely amalgamated lips; amphideal fovea cup – shaped; 16 – 17 μm long odontostyle; 19 – 20 μm long odontophore; comparatively anterior position of the second pair of pharyngeal glands; amphidelphic female genital system; transverse vulva, intestinal – prerectum junction with a tongue – like structure and 210 – 269 μm long filiform tail. A key to its seven valid species is provided.

Nematodes of the order Dorylaimida from Andalucía Oriental, Spain. Two new species of the genus Carcharodiscus Andrássy, 1991, with a key to its species

Nematology ◽  
2001 ◽  
Vol 3 (6) ◽  
pp. 515-523
Author(s):  
Gracia María Liébanas ◽  
Reyes Peña-Santiago
Keyword(s):  
New Species ◽  
Genital System ◽  
Anterior Portion ◽  
Southeastern Spain ◽  
Two New Species ◽  
Female Genital System ◽  
Female Genital

AbstractTwo new species of the genus Carcharodiscus are described from southeastern Spain. Carcharodiscus procerus sp. n. is characterised by: a very slender (a = 52 - 62) body 1.67 - 2.17 mm long, lip region offset by constriction and 17 - 18 μm diam., anterior portion of the cheilostome 12 - 13× 7.0- 7.5 μm with abundant denticles on its walls, odontostyle 10 - 12 μm long or ca 66% of the lip region diam., presence of a dorsal cell chord behind the cardia, female genital system amphidelphic, vulva longitudinal and somewhat posterior (V = 52 - 58), presence of cuticular irregularities near the vulva area, tail rounded conoid (22 - 28 μm; c = 70 - 83; c′ = 1.0 - 1.2), and male unknown. Carcharodiscus olearum sp. n. is distinguished by its very slender (a = 51 - 55) and long (L = 2.36 2.79 mm) body, lip region offset by deep constriction and 22 - 27 μm in diam., anterior portion of the cheilostome 16.5- 18.0 × 8.0- 9.5 μm with abundant denticles on its walls, odontostyle 16.0- 17.5 μm long or 0.7 to 0.8 times the lip region in diam., presence of a dorsal cell chord behind the cardia, female genital system amphidelphic, vulva longitudinal and somewhat posterior (V = 50 - 58), tail rounded conoid (25 - 28 μm; c = 89 - 99; c′ = 0.8- 0.9), and male unknown. Carcharolaimus eximius is transferred to Carcharodiscus. A list of the species of the genus and key to their identification are also provided.

Taxonomic revision of Teleogryllus mitratus (Burmeister, 1838) and T. occipitalis (Serville, 1838) in India, with the description of Teleogryllus rohinae Jaiswara & Jain sp. nov. and a key for Teleogryllus species from India (Orthoptera: Gryllidae)

Zootaxa ◽  
2021 ◽  
Vol 5016 (1) ◽  
pp. 81-106
Author(s):  
RANJANA JAISWARA ◽  
LAURE DESUTTER-GRANDCOLAS ◽  
MANJARI JAIN
Keyword(s):  
New Species ◽  
Taxonomic Revision ◽  
Identification Keys ◽  
First Time ◽  
A New Species ◽  
Female Genital

The genus Teleogryllus is known from 52 species distributed worldwide, of which India is home to 11 species. We update Teleogryllus diversity by describing a new species, T. rohinae Jaiswara & Jain sp. nov., from Kerala, India. In addition, we revise the description of the two widespread Teleogryllus species, i.e., T. mitratus (Burmeister, 1838) and T. occipitalis (Serville, 1838) and describe their female genital structures for the first time. Finally, we provide updated identification keys for all Indian Teleogryllus species.  

Studies on nematodes of the family Aulolaimoididae (Nematoda: Dorylaimida) with descriptions of five new species

Nematology ◽  
2006 ◽  
Vol 8 (5) ◽  
pp. 761-780
Author(s):  
Peerzada Mushtaq ◽  
Md Baniyamuddin ◽  
Wasim Ahmad
Keyword(s):  
New Species ◽  
Small Body ◽  
Generic Diagnosis ◽  
Genital System ◽  
Pharyngeal Bulb ◽  
The Family ◽  
Female Genital System ◽  
Short Body ◽  
Genital Branch ◽  
Female Genital

Abstract Five new and two known species belonging to the family Aulolaimoididae are described and illustrated from India and Costa Rica. Adenolaimus minor sp. n. is characterised by the short body (L = 0.38-0.46 mm), stoma supported by minute ribs, monoopisthodelphic female genital system with a small pre-uterine sac, obtusely rounded tail and male with slender spicules. Adenolaimus loofi sp. n. is characterised by the 0.66-0.72 mm long body; stoma and pharyngeal walls supported by minute rib-like structures; truncate lip region; 4.0 μ m long odontostyle; odontophore with basal flanges; mono-opisthodelphic female genital system with anterior uterine sac 0.7-1.0 times corresponding body diam. long; short hemispheroid tail and males with two, spaced, ventromedian supplements. Adenolaimus clavatus sp. n. is characterised by the 0.90-1.01 mm long body; stoma and pharyngeal walls supported by minute rib-like structures; continuous, rounded, lip region; 5.5-6.0 μm long odontostyle; odontophore with basal flanges; mono-opisthodelphic female genital system with a small anterior uterine sac and short clavate tail. Adenolaimus tropicus sp. n. is characterised by the 0.75-0.80 mm long body; lip region rounded and offset by depression; 5 μm long odontostyle; pharyngeal bulb not constricted; anterior genital branch reduced to an uterine sac and short hemispherical tail. Oostenbrinkia parva sp. n. is characterised by the small body (L = 0.440.49 mm); 4.0 μm long odontostyle with forked base, flanged odontophore; post-median vulva; vagina with two slender sclerotised pieces; amphidelphic genital system and short, hemispheroid, tail. Two known species, Aulolaimoides elegans and Adenolaimus orthus are redescribed and the generic diagnosis of Oostenbrinkia is emended. A species compendium and key to the genera and species of Aulolaimoididae are provided.

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