scholarly journals A new species of nematoda parasite of the cerambicid eucalyptus longhorned borer from Argentina

2011 ◽  
Vol 48 (3) ◽  
pp. 203-206
Author(s):  
M. Achinelly ◽  
N. Camino
Keyword(s):  
New Species ◽  
Excretory Pore ◽  
Smooth Shell ◽  
A New Species

AbstractArtigasia indigena n. sp. is characterized by the cuticle thin, annulated and with spines arranged in regular longitudinal rows from the first ring to the base of medial bulb. The first ring is differentiated with eight spines, the second ring is bigger and without spines, and then a series of small rings with spines come up to the base of medial bulb. Lateral alae absent, stoma short with four thickening cuticle like teeth, excretory pore posterior situated at the beginning of the intestine, V = 67 %, eggs oval with smooth shell, male without spicule, and genital papillae arranged with one pair of preanal papillae and one pair of postanal papillae.

Megalobatrachonema (Chabaudgolvania) waldeni n.sp. (Nematoda: Kathlaniidae) from the intestine of the northwestern salamander, Ambystoma gracile (Baird)

1988 ◽  
Vol 66 (7) ◽  
pp. 1502-1505 ◽  
Author(s):  
Jane P. M. Richardson ◽  
Martin L. Adamson
Keyword(s):  
British Columbia ◽  
New Species ◽  
Excretory Pore ◽  
Oesophageal Bulb ◽  
A New Species

A new species of kathlaniid nematode, Megalobatrachonema waldeni, from the intestine of the northwestern salamander, Ambystoma gracile, in British Columbia is described. The new species is placed in the subgenus Megalobatrachonema (Chabaudgolvania) as it lacks valves in the oesophageal bulb. Megalobatrachonema waldeni differs from the two other members of this subgenus, M. elongatum (Baird, 1958) and M. terdentatum (Linstow, 1890), in having large cervical alae and distinctly separate lips, and in lacking hypodermal lip peduncles and a pseudosucker. Megalobatrachonema waldeni has simpler onchia, smaller spicules, and a more prominent swelling at the base of the oesophageal corpus than M. elongatum, and differs from M. terdentatum by its distinct corpus swelling, more anterior excretory pore, fewer caudal papillae, and longer tail.

A new species of Aoruroides Travassos & Kloss, 1958 (Nematoda: xyuridomorpha: Thelastomatidae) parasite of the wood-burrowing cockroach Panesthia angustipennis spadica (Shiraki, 1906) (Blattodea: Blaberidae: Panesthiinae) from Japan with comments on the validity of the genus Aoruroides

Zootaxa ◽  
2019 ◽  
Vol 4712 (3) ◽  
pp. 365-376
Author(s):  
JANS MORFFE ◽  
NAYLA GARCÍA ◽  
KOICHI HASEGAWA ◽  
RAMON A. CARRENO
Keyword(s):  
New Species ◽  
Body Length ◽  
Excretory Pore ◽  
Nerve Ring ◽  
The Body ◽  
Morphological Data ◽  
Lsu Rdna ◽  
Japanese Archipelago ◽  
The Japanese Archipelago ◽  
A New Species

Aoruroides chubudaigaku n. sp. (Nematoda: Oxyuridomorpha: Thelastomatidae) is described from the wood-burrowing cockroach Panesthia angustipennis spadica (Shiraki, 1906) (Blattodea: Blaberidae: Panesthiinae) from Aichi prefecture, Japan. Females of A. chubudaigaku n. sp. are similar to A. costaricensis Carreno & Tuhela, 2011 by the position of the nerve ring at level of the first third of the isthmus, the body length and the comparative measurements of the oesophagus and tail. They differ by the position of the excretory pore and the vulva. The males of A. chubudaigaku n. sp. are characterized by the absence of ornamentations in the cervical cuticle and the nerve ring located at the posterior third of the corpus. In addition, the males of the new species can be differentiated by the length of the body and the comparative lengths of the oesophagus and the tail. The phylogeny of A. chubudaigaku n. sp. is inferred by the D2-D3 domains of the LSU rDNA and the validity of the genus Aoruroides Travassos & Kloss, 1958 is discussed on the basis of both molecular and morphological data. This constitutes the first species of the genus Aoruroides described from the Japanese archipelago. 

A new species of Pharyngodon (Nematoda, Pharyngodonidae) and other helminths in Cyrtodactylus louisiadensis (Sauria, Gekkonidae) from Papua New Guinea

2008 ◽  
Vol 53 (1) ◽  
Author(s):  
Charles Bursey ◽  
Stephen Goldberg ◽  
Fred Kraus
Keyword(s):  
New Species ◽  
Papua New Guinea ◽  
Excretory Pore ◽  
New Guinea ◽  
Egg Morphology ◽  
A New Species

AbstractPharyngodon novaeguineae sp. nov. from the large intestines of Cyrtodactylus louisiadensis (Sauria, Gekkonidae), from Papua New Guinea is described and illustrated. Pharyngodon novaeguineae represents the 36th species assigned to the genus and is separated from its congeners based upon absence of a spicule, egg morphology, and excretory pore position.

Bursaphelenchus parayongensis n. sp. (Tylenchina: Aphelenchoididae) found in packaging wood from China

Nematology ◽  
2021 ◽  
pp. 1-13
Author(s):  
Jianfeng Gu ◽  
Yiwu Fang ◽  
Ute Schönfeld ◽  
Xinxin Ma ◽  
Xiaoling Lü
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Excretory Pore ◽  
Posterior Margin ◽  
Posterior Part ◽  
Precloacal Papilla ◽  
Lateral Field ◽  
The Status ◽  
A New Species ◽  
Partial 18S

Summary Bursaphelenchus parayongensis n. sp. was isolated from packaging wood of a consignment from China exported to Germany. The new species is characterised by the lateral field with three lines, 9-13 μm long stylet with small basal swellings, and the excretory pore located near the posterior part of metacorpus. The male spicules are mitten-shaped, the lamina smoothly tapers towards the distal tip. The condylus is broadly rounded, with a small dorsally bent hook, rostrum triangular with sharply pointed tip, and without cucullus. One precloacal papilla, one adcloacal pair and two postcloacal pairs of male papillae present, with the posteriormost pair forming ‘gland papillae’. Bursal flap long, spade-like with posterior margin truncate or irregular. Females have a small vulval flap of 2-3 μm long, and a post-vulval uterine sac extending for 55-77% of the vulva to anus distance. Tail cylindrical, mostly (about 70%) with a robust mucron, very short to less than 3 μm, but occasionally tail terminus bluntly rounded, without mucron. It is similar to species in subgroup 3 of the eggersi group including B. carpini, B. clavicauda, B. cryphali and B. yongensis, but morphologically different. Detailed phylogenetic analysis based on partial 18S, ITS and D2-D3 region of 28S sequences has confirmed the status of this nematode as a new species.

Radopholus duriophilus sp. n. (Nematoda: Pratylenchidae) from Western Highland of Vietnam

Nematology ◽  
2003 ◽  
Vol 5 (4) ◽  
pp. 549-558 ◽  
Author(s):  
Chau Nguyen ◽  
Sergei Subbotin ◽  
Mehrdad Madani ◽  
Phap Trinh ◽  
Maurice Moens
Keyword(s):  
New Species ◽  
Excretory Pore ◽  
Sequence Divergence ◽  
Its Sequence ◽  
Entire Body ◽  
Lateral Field ◽  
Stylet Length ◽  
High Level ◽  
A New Species ◽  
Oval Shape

Abstract A new species of the genus Radopholus associated with durian (Durio zibetinus M.) in the Western Highland of Vietnam is described as Radopholus duriophilus sp. n. The new species is close to R. similis, but is distinguished from R. similis by the position of the excretory pore located posterior to pharyngo-intestine junction (vs at level of pharyngo-intestine junction), oval shape sperm (vs rod-like), four incisures terminating far behind position of phasmid (vs three incisures terminating at or just behind phasmid), and bursa in male never reaching tail terminus (vs bursa reaching tail terminus). Females of R. duriophilus sp. n. differ from R. nativus females by stylet length (16.5-19 vs 19-23 μm), oval or kidney-shaped sperm (vs rod-like), four incisures at level of phasmid (vs three) and their areolated lateral field (vs not areolated). The position of excretory pore of both female and male is located posterior to pharyngo-intestine junction (vs at level or anterior to pharyngo-intestine junction). Females of R. duriophilus sp. n. differ from R. clarus females by stylet length (16.5-19 vs 19-21 μm) and areolated lateral field (vs no areolation). Females of R. duriophilus sp. n. differ from R. musicola females by their lateral field with equidistant incisures at mid-body (vs two deep outer folds and two faint shallow inner incisures), oval or kidney-shaped sperm (vs rod-like), and rounded terminus tail (vs sharply pointed). The species also sp. n. differ in male stylet length (11.5-15 vs 8.8-12 μm). Females of R. duriophilus sp. n. differ from R. bridgei females by stylet length (16.5-19 vs 15-17.5 μm), median bulb length (11-16.5 vs 11-13 μm), length of hyaline tail (3-11 vs not more than 4 μm), and lateral field areolated for entire body (vs not areolated except irregularly on neck and tail). The male differs by stylet length (11.5-15 vs 10-12 μm) and length of the hyaline portion (4-9 vs 1-4 μm). In addition, the relatively high level of ITS sequence divergence of the new species from R. similis populations and the presence of nucleotide autapomorphies support a separate specific status for these durian populations. Results of surveys revealed that R. duriophilus sp. n. is rather widely distributed in durian orchards and associated with decline and death of trees in many durian nursery gardens. Densities of nematode population reached thousands of individuals per g of root samples.

Description of Aphelenchoides stellatus n. sp. (Nematoda: Aphelenchoididae) found in packaging wood from Japan

Nematology ◽  
2014 ◽  
Vol 16 (5) ◽  
pp. 621-630 ◽  
Author(s):  
Yiwu Fang ◽  
Jianfeng Gu ◽  
Xuan Wang ◽  
Hongmei Li
Keyword(s):  
New Species ◽  
Excretory Pore ◽  
Phylogenetic Analyses ◽  
Nerve Ring ◽  
Lateral Field ◽  
Male And Female ◽  
Female Tail ◽  
Morphological Status ◽  
Group 3 ◽  
A New Species

Aphelenchoides stellatusn. sp. is described and figured. The new species was isolated from packaging wood from Japan imported to Ningbo harbour, China. The new species has a body length of 485-533 μm (males) and 547-699 μm (females). The cuticle is weakly annulated and there are four lines in the lateral field. The stylet is 9-11 μm long and has small basal swellings. The excretory pore is located posterior to the nerve ring. Spicules smoothly curved, rose-thorn shaped. Apex and rostrum round, only slightly offset, dorsal limb 19-21 μm long. Male tail bearing six (2 + 2 + 2) caudal papillae. The female spermatheca is axial and oblong with round sperm present in multiple rows. Both male and female tail pegs have 3-4 processes, appearing star-like under SEM. The new species belongs to the Group 3 category ofAphelenchoidesspecies. Phylogenetic analyses based on full length ITS and 28S D2/D3 region of rDNA confirmed its morphological status as a new species.

Malvinia crassa gen. n., sp. n. (Nematoda: Drilonematoidea) – a parasite of the acanthodrilid earthworm, Notiodrilus bovei, from the Falkland Islands

Nematology ◽  
2009 ◽  
Vol 11 (1) ◽  
pp. 39-45 ◽  
Author(s):  
Elena Ivanova ◽  
Birger Neuhaus
Keyword(s):  
New Species ◽  
Excretory Pore ◽  
Body Shape ◽  
Nerve Ring ◽  
Excretory Duct ◽  
Falkland Islands ◽  
Coelomic Cavity ◽  
Basal Bulb ◽  
A New Species

AbstractA new species and genus of nematodes (Ungellidae, Drilonematoidea) parasitic in the coelomic cavity of Notiodrilus bovei deposited in the collection of the Museum für Naturkunde in Berlin, is described and illustrated. Malvinia crassa gen. n., sp. n. is characterised by its short, bloated, curved body tapering to both ends, paired, superficially attached cephalic hooks, short infundibular stoma, a pharynx comprising a pre-corpal bulb-like swelling, procorpus, isthmus and basal bulb, nerve ring encircling isthmus, excretory pore located posterior to the nerve ring, weakly cuticularised excretory duct, vulva, slightly post-median, short precloacal process in males, large grain-like spermatids, sperm in spermatheca ball-shaped, ca 20 μm diam., composed of smaller particles resembling spermatids; symmetrically placed, large, fimbriate caudal organs lacking a cavity, and absence of amphids, cephalic and male cloacal sensilla and post-uterine sac. Malvinia gen. n. is differentiated from all genera of the Ungellinae on the basis of its small size, vesiculate vs vermiform body shape, very long reflexed portion of testis and highly modified sperm. From the closest species of the genus Ungella, the new species differs by the presence vs absence of a stoma and pre-corpal swelling of the pharynx, structure of fimbriate caudal organs, larger spermatids in male and sperm in female spermatheca, and absence of lateral differentiation of the cuticle. A key to the genera of Ungellinae is proposed.

scholarly journals A new species of the genus Cranifera Kloss, 1960 (Thelastomatidae, Nematoda) parasitizing larvae of Scarabaeidae (Coleoptera) from Argentina

2012 ◽  
Vol 34 (82) ◽  
Author(s):  
Nora B. Camino ◽  
María Fernanda Achinelly
Keyword(s):  
New Species ◽  
Excretory Pore ◽  
Buenos Aires ◽  
Nerve Ring ◽  
The Body ◽  
A New Species

The presente study describes and ilustrates Cranifera robustum n. sp. (Nematoda, Thelastomathidae), a parasite of Cyclocephala signaticollis larvaes (Coleoptera, Scarabaeidae), from Buenos Aires, Argentina. Cranifera robustum n. sp. ischaracterized by its striated cuticle trough all the body, proeminent near the anterior end, its lack of intestine caecum, itssmall stomach, a long oesophagus, with thin irregular walls in male and regular ones in female, with a round valvatedbasal bulb. Its nerve ring is located in the middle of the oesophagus corpus, and the excretory pore is located at the base ofthe oesophagus, in both sexes. The female presents a not protruding vulva, located right behind the longitudinal middleline of the body, a short vagina, two ovaries didelphic, amphidelphic, and ellipsoidal oviles, short and conical appendagetail. The male presentes one spicule slightly curved, its gubernaculum is absent and its genital papillae is arranged in threepairs: two large ventral preanal pairs and one ventral postanal pair.

Steinernema phyllophagae n. sp. (Rhabditida: Steinernematidae), a new entomopathogenic nematode from Florida, USA

Nematology ◽  
2011 ◽  
Vol 13 (4) ◽  
pp. 425-442 ◽  
Author(s):  
Eileen Buss ◽  
Khuong Nguyen
Keyword(s):  
New Species ◽  
Excretory Pore ◽  
First Generation ◽  
Entomopathogenic Nematode ◽  
White Grub ◽  
Lateral Field ◽  
Quercus Virginiana ◽  
Live Oak ◽  
Tail Tip ◽  
A New Species

AbstractA new species of entomopathogenic nematode, Steinernema phyllophagae n. sp., was isolated from a white grub (Phyllophaga sp.) in a live oak (Quercus virginiana) nursery. The new species is characterised by morphometrics of the infective Sjuvenile (IJ) with body length 1289 (1133-1395) μm, distance from anterior end to the excretory pore 99 (84-120) μm, tail 89 (77-109) μm, ratio a = 31 (27.6-35.5), H% = 57 (51-60) and E% = 110 (70-139). The pattern of the lateral field of IJ of the new species is 2, 5, 6, 8, 6, 2. The male of the first generation can be recognised by the length and shape of the spicule and gubernaculum, position of the excretory pore, D% = 75 (68-80), and GS% = 71 (61-77). The female can be recognised by the vulva having low epiptygma and by the presence of several papilla-like structures near the tail tip. Steinernema phyllophagae n. sp. differs further from other species of Steinernema by characteristics of ITS and D2D3 regions of rDNA.

scholarly journals A new species of Blatticola Schwenk, 1926 (Oxyurida, Thelastomatidae) a parasite of Anurogryllus muticus (De Geer, 1773) (Orthoptera, Gryllidae) from Argentina

2007 ◽  
Vol 47 (15) ◽  
pp. 181-186 ◽  
Author(s):  
María Fernanda Achinelly ◽  
Nora B. Camino
Keyword(s):  
New Species ◽  
Body Length ◽  
Mouth Opening ◽  
Nerve Ring ◽  
The Body ◽  
The Other ◽  
Smooth Shell ◽  
Small Pore ◽  
Basal Bulb ◽  
A New Species

Blatticola cristovata n. sp. (Oxyurida, Thelastomatidae) a parasite of the cricket Anurogryllus muticus (De Geer, 1773) (Orthoptera, Gryllidae) from Argentina, is described and illustrated. This is the first species of the genus Blatticola found parasitizing cricket. This new species is characterized in females by having the cuticle annulated through the body length, the mouth opening is subtriangular and surrounded by eight cephalic papillae, the stoma is short with three pairs placed in two rows of cuticular sclerotised plates, amphids in small pore shaped, oesophagus is divided into three parts, anterior cylindrical corpus, isthmus distinct, and basal bulb valved, the nerve ring is situated around the middle of corpus, the intestine is wide broad anteriorly, oval eggs, smooth shell, with a straight side, and the other side with a band running longitudinally. Males with one pair of preanal, one pair of adanal and two pairs of postanal papillae, and the tail appendage short, conical and pointed.

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