Volume 6, Part 2 (1998)
- N.P.Fadeeva and
V.V. Yushin. Two new species and three known species
of free-living marine nematodes of the genus Enoplus Dujardin, 1845
(Nematoda: Enoplidae) from the North Pacific, 95-102
- V.V.
Kulikov, O.I. Dashchenko, T.V. Koloss and V.V. Yushin. A description
of the free-living marine nematode Euchromadora robusta sp. n. (Nematoda:
Chromadorida) with observations on the ultrastructure of the body cuticle,
103-110
- M.E.
Doucet, L.C.C.B. Ferraz, J.C. Magunacelaya and D.J.F. Brown. The occurrence and distribution of longidorid nematodes in Latin America,
111-128
- M.M.A.de
Doucet and S.R. Cagnolo. Agamermis decaudata Cobb, Steiner
& Christie, 1923 (Nematoda: Mermithidae) parasitizing Castnia dedalus
isopods in Cordoba, Argentina, 129-133
- R.
Pena Santiago, J. Abolafia and D.J. Guirado. Nematodes of the order
Dorylaimida from Andalucia Oriental, Spain. The genus Prodorylaimus
Andrassy, 1959. I. Monosexual species, 135-145
- L.
Abolafia, R. Pena Santiago and D.J. Guirado. Nematodes of the order
Dorylaimida from Andalucia Oriental, Spain. The genus Prodorylaimus
Andrassy, 1959. II. Bisexual species, 147-159
- N.V.
Kolossova. Bursaphelenchus eroshenkii sp. n. (Nematoda: Aphelenchoididae)
from the Russian Far East, with a key to some species of Bursaphelenchus
Fuchs, 1937, 161-164
- S.
Lazarova, V. Peneva and R. Neilson. Nematodes of the genus Tripyla
Bastian, 1865 (Nematoda: Enoplida) from woodlands in Bulgaria, 165-174
- V.V.
Aleshin, O.S. Kedrova, I.A. Milyutina, N.S. Vladychenskaya and N.B.
Petrov. Relationships among nematodes based on the analysis of
18S rRNA gene sequences: molecular evidence for monophyly of chromadorian
and secernentian nematodes, 175-184
- N.D.
Romanenko. Redescription of Longidorus rubi Tomilin & Romanenko
in Romanenko, 1993 (Nematoda: Longidoridae) associated with raspberry in
the Poltava region, Ukraine, 185-187
- M.W.
Brzeski and C.M. Dolinsk. Compendium of the genus Tylenchorynchus
Cobb, 1913 sensu lato (Nematoda: Belonolaimidae), 189-199
- Book Reviews, 200-203
- Content of Volumes 1-5 (1993-1997), 205-208
- Author Index of Volumes 1-5 (1993-1997), 209-210
- Subject Index of Volumes 1-5 (1993-1997), 211-216
Fadeeva, N.P. and Yushin, V.V.
Two new species and three known
species of free-living marine nematodes of the genus Enoplus Dujardin,
1845 (Nematoda: Enoplidae) from the North Pacific
Summary:
Illustrated descriptions are given for five species of the genus Enoplus
from Pacific coastal waters. Enoplus paralittoralis and a new species,
Enoplus
kurilensis sp. n. were collected from the area of the Kurile Islands;
E.
velatus and a new species Enoplus paralpha sp. n., were collected
from the area of the San Juan Islands, and E. michaelseni from the
Sea of Japan.
Key words: Enoplus kurilensis sp. n., E. paralpha sp.
n., E. velatus, E. paralittoralis, E. michaelseni, marine nematodes, North
Pacific, taxonomy.
Kulikov, V.V.,
Dashchenko, O. I., Koloss, T. V. and Yushin, V.V.
A description of the free-living marine nematode Euchromadora
robusta sp. n. (Nematoda: Chromadorida) with observations on the ultrastructure
of the body cuticle
Summary:
Euchromadora robusta sp. n. found in meiobenthos samples from
the Sea of Japan and the Sea of Okhotsk is described. The new species differs
from other species in the genus by its long body (3.0-3.9 mm), thick cuticle
(about 9 um), and shape of spicules and gubernaculum. The ultrastructure
of the body cuticle and transformation of the cuticle in the head end is
reported.
Key words: Euchromadora robusta sp. n., nematode, cuticle,
ultrastructure, Sea of Japan, Sea of Okhotsk.
Doucet, M.
E., Ferraz, L.C.C. B., Magunacelaya, J.C. and Brown, D.J.F.
The occurrence and distribution of longidorid nematodes
in South America
Summary:
The occurrence and distribution in Latin America of nematode species
belonging to the Longidoridae are presented. Fifty-four nominal valid species,
one species inquirenda, and one new, undescribed species are reported from
24 countries/territories in the region. In many of these countries, and
in another five Latin America countries, longidorid nematodes have been
recorded but identified only to generic level. The genera recorded are
Longidoroides,
Longidorus, Paraxiphidorus, Xiphidorus and Xiphinema.
Longidoroides,
Longidorus and several Xiphinema species probably represent
introductions to the region whereas Paraxiphidorus, Xiphidorus and
other Xiphinema species are considered indigenous. Nepoviruses have
been associated with an unidentified Longidorus in Peru, Xiphinema
americanum sensu lato nematodes have been associated with tobacco and
tomato ringspot nepoviruses in Peru and Chile, respectively, and X.
index has been associated with grapevine fanleaf nepovirus in vineyards
in Argentina and Chile. Longidorid nematodes have been reported associated
with a wide range of cultivated and uncultivated plants in Latin America.
It is concluded that research on longidorid nematodes and their associated
nepoviruses should be coordinated in the region to develop and establish control
strategies to reduce the detrimental impact on agriculture and horticulture of these nematodes and associated nepoviruses.
Key words: distribution, Longidoroides, Longidorus,
nepoviruses, Paralongidorus, Paraxiphidorus, Xiphidorus, Xiphinema.
Doucet, M.M. A. de
and Cagnolo, S.R.
Agamermis decaudata Cobb, Steiner
& Christie, 1923 (Nematoda: Mermithidae) parasitizing Castnia dedalus
isopods in Cordoba, Argentina
Summary:
A population of Agamermis decaudata from Cordoba, Argentina,
is described on the basis of its morphology and morphometrics and is compared
with other populations of the species. Variability occurring in morphological
and morphometric characters is analyzed and provides new data on the nematodes'
biology. The morphological characters correspond to those known for the
species, but for some characters the mean values are smaller and the morphometric
limits greater than those previously published. Variability of these characters
was largest in males than females. The nematodes were found parasitizing
Castnia
dedalus, which is the first record of isopods being attacked by members
of the genus Agamermis. The nematode had not previously been recorded
from Cordoba and this occurrence extends the known distribution of the
genus.
Key words: Agamermis decaudata, distribution, isopods,
morphology, morphometry, parasitism, variability.
Santiago,
R.P., Abolafia, J. and Guirado, D.J.
Nematodes of the order Dorylaimida from Andalucia Oriental,
Spain. The genus Prodorylaimus Andrassy, 1959. I. Monosexual species
Summary:
Four species of the genus Prodorylaimus Andrassy, 1959 were
recovered from soil samples collected mainly in natural areas from south-eastern
Spain. Descriptions, measurements and illustrations of P. acris
(Thorne, 1939) Loof, 1985, P. cantabricus sp. n., P. uliginosus
Loof, 1985 and Prodorylaimus sp. are presented. Prodorylaimus
cantabricus sp. n. is distinguished by the body being 1.7-2.1 mm long,
lip region truncate and continuous with the body and 14-16 µm wide, odontostyle
29-33 µm long or 1.9-2.1 times the lip region width, pharyngeal bulb 180-226 µm long, V% = 45.8-52.0, prerectum 88-104 µm long and tail filiform (325-412
µm, c=4.8-6.1, c'=109-15.0). These represent the first records of the occurrence
of P. acris and P. uliginosus in Spain.
Key words: Prodorylaimus cantabricus sp. n., Iberian
Peninsula, taxonomy.
Abolafia, J., Santiago, R.P. and Guirado, D.J.
Nematodes of the order Dorylaimida from Andalucia Oriental,
Spain. The genus Prodorylaimus Andrassy, 1959. II. Bisexual species
Summary:
This paper deals with four previously known species of the genus Prodorylaimus
Andrassy, 1959 collected mostly from natural areas in south-eastern Spain:
P.
brigdammensis (de Man, 1876) Goodey, 1963; P. filiarum Andrassy,
1964; P. longicaudatoides Altherr, 1968 and P. mas Loof,
1985. The species are described and illustrated, and tables of measurements
are also given. Prodorylaimus longicaudatoides and P. mas are reported
for the first time from the Iberian peninsula.
Key words: bisexual species, Prodorylaimus spp.,
taxonomy.
Kolossova,
N.V.
Bursaphelenchus eroshenkii sp. n. (Nematoda: Aphelenchoididae)
from the Russian Far East, with a key to some species of Bursaphelenchus
Fuchs, 1937
Summary:
Bursaphelenchus eroshenkii sp. n. is described from specimens
extracted from dead wood of Pinus sibirica, collected in the Russian
Far East. It differs from all other species of the genus Bursaphelenchus
by the presence of a spicula cucullus and absence of a vulval flap. Bursaphelenchus
eroshenkii sp. n. is similar to B. borealis Korentchenko, 1980,
but differs by spicula and tail terminus shape.
Key words: Bursaphelenchus eroshenkii sp. n., key,
morphology, Pinus sibirica, Russia.
Lazarova,
S., Peneva, V. and Neilson, R.
Nematodes of the genus Tripyla Bastian, 1865
(Nematoda: Enoplida) from woodlands in Bulgaria.
Summary:
During an investigation of nematode diversity in Bulgarian woodlands,
four species of Tripyla (T. affinis, T. filicaudata, T. infia
and T. setifera) were detected in soils associated with different
trees: pine, spruce, beech and oak. Morphological data are provided for
the four Tripyla species. Tripyla infia was a new geographic
record for Bulgaria. Tripyla setifera was recovered from bark of
a pine tree. Tripyla setifera and T. filicaudata were the
most common and abundant tripylid species.
Key words: Bulgaria, morphology, new record, Tripyla,
woodland.
Aleshin, V.V., Kedrova, O. S.,
Milyutina, I. A., Vladychenskaya, N. S. and Petrov,
N. B.
Relationships among nematodes based on the analysis
of 18S rRNA gene sequences: molecular evidence for monophyly of chromadorian
and secernentian nematodes
Summary:
The relationships among nematodes were studied by 18S rRNA gene sequencing.
On the basis of phylogenetic trees and cladistic analysis of the secondary
structure of helix 49, some orders of traditional Adenophorea should be
ascribed to the Secernentea. The Chromadorida and Desmodorida should be
grouped with nematodes of a complex consisting of the Monhysterida, Plectida
and Secernentea. This taxon may be named Chromadoria, as was proposed earlier
(Drozdovsky, 1981), since chromadorids are most closely related to the
common ancestor of these groups. Hence, the class Adenophorea in a traditional
sense is paraphyletic and should be revised.
Key words: Nematoda, Adenophorea, Secernentea, Chromadoria,
18S rRNA, molecular phylogeny.
Romanenko,
N.D.
Redescription of Longidorus rubi Tomilin &
Romanenko in Romanenko, 1993 (Nematoda: Longidoridae) associated with raspberry
in the Poltava region, Ukraine
Summary:
Longidorus rubi Tomilin & Romanenko in Romanenko, 1993,
is redescribed and illustrated from paratypes. Longidorus rubi is
most similar to L. pini Andres & Arias, 1987, L. longicaudatus
Siddiqi, 1962, L. distinctus Lamberti et al., 1983 and L.
nirulai Siddiqi, 1965.
Key words: Longidoridae, Longidorus rubi, nematode,
raspberry, Ukraine.
Brzeski, M.W. and
Dolonski, C.M.
Compendium of the genus Tylenchorhynchus Cobb,
1913 sensu lato (Nematoda: Belonolaimidae)
Summary:
A compendium of diagnostic characters of 177 species of the genus Tylenchorhynchus
sensu lato is presented. These data assist with the selection of species
descriptions which should be consulted to enable identification to be made
of Tylenchorhynchus nematodes. The genera Bitylenchus, Dolichorhynchus,
Neodolichorhynchus, Quinisulcius, Trilinellus and Macrorhynchus
are considered synonyms of Tylenchorhynchus.
Key words: compendium, species, synonyms, taxonomy,
Tylenchorhynchus.
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