Studies on the genus Paraphanolaimus Micoletzky, 1923 (Nematoda: Aphanolaimidae) with description of P. paraguayensis sp. n.

Nematology ◽  
2003 ◽  
Vol 5 (6) ◽  
pp. 793-807
Author(s):  
Oleksandr Holovachov ◽  
Dieter Sturhan
Keyword(s):  
New Species ◽  
Reproductive System ◽  
Female Reproductive System ◽  
As Species ◽  
Tail Tip ◽  
One New Species ◽  
Species Inquirendae ◽  
Epidermal Glands ◽  
Emended Diagnosis

Abstract Two known and one new species of Paraphanolaimus are described, viz. P. behningi from Germany, P. anisitsi from Paraguay and Germany and P. paraguayensis sp. n. from Paraguay. Paraphanolaimus paraguayensis sp. n. is characterised by 0.84-0.94 mm long body, presence of 37-44 lateral epidermal glands, strongly sclerotised and broad cylindrical stoma, swollen tail tip; female reproductive system with developed spermathecae, straight vagina; male without neck setae, 16-19 tubular supplements, two precloacal and nine to ten caudal setae, spicules 32-33 μm long, arcuate, with oval manubrium and fusiform shaft, platelike gubernaculum. Paraphanolaimus indicus and P.micoletzkyi are considered as species inquirendae. An emended diagnosis and a revised classification of Paraphanolaimus are proposed and a key to the species of the genus is provided. Aphanonchus bayensis (Keppner, 1988) comb. n. is proposed for Paraphanolaimus bayensis Keppner, 1988.

Two new species of the genus Aphanonchus Coomans & Raski, 1991 (Nematoda: Aphanolaimidae) and a revised taxonomy of the genus

Nematology ◽  
2004 ◽  
Vol 6 (3) ◽  
pp. 357-373
Author(s):  
Oleksandr Holovachov ◽  
Dieter Sturhan
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Ivory Coast ◽  
Type Locality ◽  
Morphological Data ◽  
Type Specimens ◽  
Two New Species ◽  
Epidermal Glands ◽  
Emended Diagnosis

Abstract Two new species of Aphanonchus are described from Germany and Ivory Coast. Aphanonchus europaeus sp. n., from Germany, is best characterised by 1.1-1.4 mm long body, presence of 50-96 lateral epidermal glands; female without neck setae, with straight vagina without sclerotisations and three to nine prevulval alveoli; male with a pair of neck setae, 15 tubular and 20 alveolar supplements, one pair of precloacal and four pairs of caudal setae, 39 μm long spicules. Aphanonchus africanus sp. n., from Ivory Coast, is characterised by 1.0-1.3 mm long body, presence of 37 to 71 lateral epidermal glands; female with a pair of neck setae, straight to slightly sinuous vagina without sclerotisations, and without alveoli; male with a pair of neck setae, 12-18 tubular and 54-80 alveolar supplements, a pair of precloacal and four pairs of caudal setae, 35.5-43 μm long spicules. Morphological data, based on specimens of A. bayensis from Costa Rica, A. multipapillatus from Colombia and Suriname, A. obesus from Ivory Coast and the type locality in Vietnam, and type specimens of A. longiceras, are presented and supplement the descriptions of these four species. An emended diagnosis and a revised classification of Aphanonchus are proposed and a key to the species of the genus is provided.

Studies on the genus Aphanolaimus de Man, 1880 (Nematoda: Aphanolaimidae) with description of two new species

Nematology ◽  
2006 ◽  
Vol 8 (2) ◽  
pp. 235-254
Author(s):  
Byeong-Yong Park ◽  
Oleksandr Holovachov ◽  
Dieter Sturhan
Keyword(s):  
New Species ◽  
Reproductive System ◽  
Gland Cell ◽  
Female Reproductive System ◽  
Lateral Field ◽  
Two New Species ◽  
De Man ◽  
First Time ◽  
Epidermal Glands ◽  
Ventral Gland

AbstractThree known and two new species of Aphanolaimus are described, viz. A. louisae, A. seshadrii, A. brasiliensis, A. aberrans sp. n. and A. vietnamicus sp. n. New data on the morphology and distribution of A. louisae, A. seshadrii and A. brasiliensis are given. The male of A. brasiliensis is described for the first time: it is characterised by the presence of one pair of neck setae, four tubular supplements, two precloacal and six caudal setae, 13-18 μm long spicules with oval manubrium and gradually narrowing shaft, platelike gubernaculum. Aphanolaimus aberrans sp. n. is characterised by a 495-681 μm long body, longitudinally striated cuticle, presence of 24-34 lateral epidermal glands, weakly sclerotised stoma, amphid with central elevation, lateral field starting on the third to seventh annule, oval ventral gland cell; female reproductive system with developed spermathecae, straight vagina without sclerotisations; male with one pair of neck setae, with two or three small tubular supplements and three or four caudal setae, 13-18 μm long spicules with oval manubrium and gradually narrowing shaft, plate-like gubernaculum. Aphanolaimus vietnamicus sp. n. is characterised by a 544-569 μm long body, longitudinally striated cuticle, presence of 19 lateral epidermal glands, weakly sclerotised stoma, amphid with central elevation, lateral field starting on 14th-18th annule, oval ventral gland cell; female reproductive system with developed spermathecae, straight vagina without sclerotisations; male with one pair of neck setae, with two tubular supplements and four caudal setae, 12 μm long spicules with oval manubrium and gradually narrowing shaft.

A new species of genus Hexacentrus Serville, 1831 from Taiwan (Orthoptera: Tettigoniidae: Hexacentrinae)

Zootaxa ◽  
2021 ◽  
Vol 4933 (4) ◽  
pp. 543-556
Author(s):  
PO-WEI CHEN ◽  
HUI-CONG XIE ◽  
XUE WU ◽  
CHU-ZE SHEN ◽  
ZHU-QING HE
Keyword(s):  
New Species ◽  
Gene Tree ◽  
Species Level ◽  
National Museum ◽  
Type Specimens ◽  
As Species ◽  
Wide Range ◽  
Similar Appearance ◽  
One New Species ◽  
A New Species

There are 29 species or subspecies in genus Hexacentrus occurring in Asia, Africa and Australia. Because of its similar appearance, it is not easy to distinguish them by traditional methods. In this study, we collected samples and sequenced COI genes from wide range. By reconstructing the gene tree, we found one new species, H. formosanus Chen et He sp. nov., from Taiwan. The new species is similar to H. expansus or H. inflatissimus, but differs from the former in male Cu2 vein of left tegmina curved and slender, and spectrum of male left tegmina slender and subsquare; differs from the later by body size smaller and female tegmina narrow and short. The type specimens are deposited in National Museum of Natural Science, Taichung, Taiwan (NMNS). H. japonicus hareyamai is treated as species level, H. hareyamai stat. nov. 

A revision of Rhombodineutus Ochs in New Guinea (Coleoptera: Gyrinidae)

1983 ◽  
Vol 14 (2) ◽  
pp. 205-233 ◽  
Author(s):  
Per Brinck
Keyword(s):  
New Species ◽  
New Guinea ◽  
Morphological Characters ◽  
Niche Shift ◽  
Restricted Range ◽  
New Subspecies ◽  
Streams And Rivers ◽  
New Britain ◽  
One New Species

AbstractGenus-group taxon Rhombodineutus Ochs, 1926 is related to Paracyclous Ochs (Indonesia) and Callistodineutus Ochs (Melanesia), classified under Dineutus MacLeay. It occurs in New Guinea and New Britain Island, inhabiting streams and rivers primarily at low and medium altitudes where the species may occur abundantly. Most species live in the forests and have a fairly restricted range, while D. pectoralis Régimbart has passed a niche shift and adapted to exposed and exploited land and spread widely, splitting into a considerable number of races, some of which were found at an elevation of 1500-2000 m. The morphological characters are reviewed and their differentiation examined as a background for the classification of the taxon and a revision of its species which have been placed in three groups, containing 8 species and 11 subspecies. One new species and four new subspecies are described. Keys are provided to the various groups of taxa.

Paurodontella gilanica n. sp. (Nematoda: Sphaerularioidea) from Iran

Nematology ◽  
2018 ◽  
Vol 20 (5) ◽  
pp. 471-482 ◽  
Author(s):  
Ali Yaghoubi ◽  
Ebrahim Pourjam ◽  
Majid Pedram
Keyword(s):  
New Species ◽  
Posterior Probability ◽  
Small Body ◽  
Bootstrap Support ◽  
Bayesian Posterior Probability ◽  
Female Reproductive System ◽  
Lateral Field ◽  
Morphological Differences ◽  
Tail Tip ◽  
18S Rdna Sequence

Summary Paurodontella gilanica n. sp. is described and illustrated based on morphological, morphometric and molecular characters. The new species is characterised by its small body size, four lines in the lateral field, weak stylet with minute asymmetrical knobs, female reproductive system lacking a diverticulum but with small post-vulval uterine sac, elongate conoid tail with pointed, sometimes filiform, tip, males common with small spicules and cloacal bursa not reaching tail tip. Morphological differences between the new species and seven known species of the genus, namely P. asymmetrica, P. auriculata, P. balochistanica, P. minuta, P. myceliophaga, P. parapitica and P. persica, are discussed. The new species is also compared with four known species of Paurodontus having four lines in the lateral field. Using a 1123 nt long partial 18S rDNA sequence of the new species to reconstruct the phylogenetic relationships revealed that it formed a clade with members of the Sphaerulariidae and Paurodontidae. Using a 746 nt long partial sequence of the 28S rDNA D2-D3 segment revealed that P. gilanica n. sp. formed a clade with Abursanema iranicum in both Bayesian inference (BI) and maximum likelihood (ML) analyses with 0.99 Bayesian posterior probability (BPP) and 89% bootstrap support value (BS). The morphological affinities of Paurodontella and Paurodontus are discussed.

New mouthless nematode of the genus Parastomonema Kito, 1989 (Nematoda: Siphonolaimidae) from a mangrove forest on the coast of Thailand, and erection of the new subfamily Astomonematinae within the Siphonolaimidae

Zootaxa ◽  
2006 ◽  
Vol 1177 (1) ◽  
pp. 39 ◽  
Author(s):  
KENJI KITO ◽  
CHITTIMA ARYUTHAKA
Keyword(s):  
New Species ◽  
Reproductive System ◽  
Mangrove Forest ◽  
Type Species ◽  
Alimentary Canal ◽  
Diagnostic Feature ◽  
Female Reproductive System ◽  
Muddy Sediments ◽  
Short Body ◽  
A New Species

A new species of mouthless nematode Parastomonema papillosum sp. nov. was described based on specimens collected in muddy sediments of a mangrove forest in Samut Songkhram, Thailand. Parastomonema papillosum sp. nov. is the second species of the genus and differs from the type species P. fijiense Kito, 1989 in having short body length (1.5–3.0 mm), short cephalic setae (1.5–2.6 µm), and a weakly cuticularized gubernacular apophysis in the male. Astomonematinae subfam. nov. was erected for the two mouthless genera Astomonema and Parastomonema in the Siphonolaimidae based on the diagnostic feature of a degenerate alimentary canal and female reproductive system with paired ovaries.

Luciola leii sp. nov., a new species of aquatic firefly (Coleoptera: Lampyridae: Luciolinae) from mainland China

2006 ◽  
Vol 138 (3) ◽  
pp. 339-347 ◽  
Author(s):  
Xinhua Fu ◽  
Lesley Ballantyne
Keyword(s):  
New Species ◽  
Reproductive System ◽  
Mainland China ◽  
Hubei Province ◽  
Female Reproductive System ◽  
A New Species

AbstractA new species of aquatic firefly, Luciola leiisp. nov., from Hubei Province in mainland China is described from males, females, and larvae. It is the fifth species of aquatic firefly recorded from China, and it differs significantly from Luciola substriata Gorham. Cuticular plates in the female reproductive system (bursa) are described and their possible functions are discussed.

Morphology and systematics of the genus Anonchus Cobb, 1913 (Nematoda: Leptolaimina) and reappraisal of the family Aphanolaimidae Chitwood, 1936 n. rank

Nematology ◽  
2002 ◽  
Vol 4 (6) ◽  
pp. 725-757
Author(s):  
Aldo Zullini ◽  
Oleksandr Holovachov ◽  
Pieter Loof ◽  
Tom Bongers
Keyword(s):  
New Species ◽  
Morphological Analysis ◽  
Morphological Characters ◽  
Type Material ◽  
Diagnostic Significance ◽  
The Family ◽  
Two New Species ◽  
Emended Diagnosis

AbstractThe genus Anonchus is revised. The genera Assia and Haconnus are considered to be synonymous with Anonchus on the basis of the morphological analysis. Additional descriptions of six species, viz. A. maculatus , A. mirabilis , A. millelacunatus , A. palaeotropicus , A. coomansi and A. pulcher are provided on the basis of type material or recently collected populations. The lectotype of A. monohystera is designated and described and the synonymy of this species with A. maculatus is confirmed. Two new species are described; A. winiszewskae sp. n. from Paraguay and A. venezolanus sp. n. from Venezuela. Several aspects of the morphology are described and the variability and diagnostic significance of the main morphological characters discussed. A study of intrageneric and suprageneric taxonomy of the genus Anonchus is presented. The subfamily Aphanolaiminae is reinstated for the genera Aphanolaimus, Aphanonchus and Paraphanolaimus and raised to family rank. The family Aphanolaimidae includes two subfamilies: Aphanolaiminae and Anonchinae. An emended diagnosis and a revised classification of Anonchus are proposed and a key to the species of the genus is provided.

CHAMBERSIELLIDAE N. FAM. (NEMATODA) WITH EMENDED DIAGNOSIS OF THE GENUS CHAMBERSIELLA COBB, 1920, DESCRIPTION OF C. BAKERI N. SP., AND DISCUSSION OF TAXONOMIC POSITION

1957 ◽  
Vol 35 (5) ◽  
pp. 615-621 ◽  
Author(s):  
K. C. Sanwal
Keyword(s):  
Reproductive System ◽  
The Body ◽  
Taxonomic Position ◽  
Generic Diagnosis ◽  
Female Reproductive System ◽  
New Information ◽  
The Family ◽  
Oak Tree ◽  
Emended Diagnosis

Chambersiella bakeri n. sp., collected from the bark of an oak tree in the vicinity of Richmond, Ontario, is described and figured. It differs from C. rodens in the structure of the stoma, in the form of the female reproductive system, in the position of the vulva, and in the size of the body. With the new information provided by this species the generic diagnosis of Chambersiella Cobb, 1920 is emended. This genus, after emendment, is removed from the family Cephalobidae Chitwood and Chitwood, 1934 and placed in Chambersiellidae n. fam. The relationships of Chambersiellidae with the Rhabditidae and the Cephalobidae are discussed.

Description of Bathynema nodinauti gen. n., sp. n. and four new Trophomera species (Nematoda: Benthimermithidae) from the Clarion-Clipperton Fracture Zone (Eastern Tropic Pacific), supplemented with the keys to genera and species

Zootaxa ◽  
2009 ◽  
Vol 2096 (1) ◽  
pp. 173-196 ◽  
Author(s):  
DMITRY M. MILJUTIN ◽  
MARIA A. MILJUTINA
Keyword(s):  
New Species ◽  
Body Length ◽  
Reproductive System ◽  
Fracture Zone ◽  
Body Part ◽  
Total Body Length ◽  
Female Reproductive System ◽  
Clipperton Fracture Zone ◽  
Total Body ◽  
Clarion Clipperton Fracture Zone

Seven specimens of the family Benthimermithidae from the Clarion-Clipperton Fracture Zone (Eastern Tropic Pacific), from the depths 4,800–5,040 m, were examined. Bathynema nodinauti gen. et sp. n. is described. The new genus differs from other genera of Benthimermithidae by the presence of an inner pharyngeal lumen. Four new species of Trophomera are also described. Body length of female of T. elegantis sp. n. approximately 1.5 mm; body cylindrical, anterior and posterior ends in shape of rounded cone; cephalic setae 2.0–2.5 μm long; trophosome consisting of 1 row of cells; female reproductive system didelphic, amphidelphic, occupying approximately 1/6 of total body length; ovaries reflected; diameter of mature eggs 17 μm; males not found. Body length of female of T. minutissima sp. n. 0.9 mm; body cylindrical, with thickest body part at anterior half of body; anterior and posterior ends rounded; cephalic setae 1.5 μm long; trophosome consisting of 1 row of cells; female reproductive system didelphic, amphidelphic, occupying approximately 1/3 of total body length; ovaries reflected; size of mature eggs 24x23 μm; males not found. Body length of female of T. pacifica sp. n. 5.4 mm; body cylindrical, anterior end rounded; posterior end conical, with thick conical terminal spine 81 μm long, showing granular core; cephalic setae 2.5 μm long inserted in tiny pits; trophosome consisting of 1 row of cells; female reproductive system didelphic, amphidelphic, occupying approximately 2/3 of total body length; ovaries outstretched; size of mature eggs 34x20 μm; males not found. Body length of female of T. senckenbergi sp. n. 1.6 mm; body fusiform; anterior and posterior ends in shape of a cone with rounded tip; cephalic setae 2 μm long; trophosome consisting of 1 row of cells; female reproductive system didelphic, amphidelphic, occupying approximately 1/6 of total body length; ovaries non-reflected; males not found. The new finding of T. marionensis is recorded. One rest specimen (in bad condition) of a new species is described as a morphotype. A dichotomous key to the genera of the Benthimermithidae and tabular keys to Trophomera species are presented.

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