A Chordodid Worm (Nematomorpha, Gordiacea) from Orenburg Region of Russia
Приведено описание общей морфологии и строения поверхности кутикулы единственного экземпляра самки волосатика, обнаруженной на дне колодца в Бузулукском бору в Оренбургской обл. России. По особенностям строения поверхности кутикулы этот волосатик относится к семейству Chordodidae, представители кото...
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Інститут зоології ім. І. І. Шмальгаузена НАН України
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| Cite this: | Волосатик-хордодида (Nematomorpha, Gordiacea) из Оренбургской области России / S. E. Spiridonov // Вестн. зоологии. — 2003. — Т. 37, № 1. — С. 85-88. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1860244800775651328 |
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| author | Spiridonov, S.E. |
| author_facet | Spiridonov, S.E. |
| citation_txt | Волосатик-хордодида (Nematomorpha, Gordiacea) из Оренбургской области России / S. E. Spiridonov // Вестн. зоологии. — 2003. — Т. 37, № 1. — С. 85-88. — англ. |
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| description | Приведено описание общей морфологии и строения поверхности кутикулы единственного экземпляра самки волосатика, обнаруженной на дне колодца в Бузулукском бору в Оренбургской обл. России. По особенностям строения поверхности кутикулы этот волосатик относится к семейству Chordodidae, представители которого обычны в тропиках, а не в умеренных широтах.
General morphology and cuticular structures of a single female specimen of the nematomorph worm are described. The specimen was collected on the well bottom in Buzuluk Reserve, Orenburg region, Russia. According to the features of cuticular surface this nematomorph worm belongs to the family Chordodidae, representatives of which are common in tropics, not in temperate regions.
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Vestnik zoologii, 37(1): 85—88, 2003
© S. E. Spiridonov, 2003
ÓÄÊ 576.895.131.2
A CHORDODID WORM (NEMATOMOPRHA, GORDIACEA)
FROM ORENBURG REGION OF RUSSIA
S. E. Spiridonov
Institute of Parasitology, Russian Academy of Sciences, Leninskii pr., 33, Moscow, 117071 Russia
E-mail: spiridon@rjnem.msk.ru
Accepted 7 February 2002
A Chordodid Worm (Nematomorpha, Gordiacea) from Orenburg Region of Russia. Spiridonov S. E. –
General morphology and cuticular structures of a single female specimen of the nematomorph worm
are described. The specimen was collected on the well bottom in Buzuluk Reserve, Orenburg region,
Russia. According to the features of cuticular surface this nematomorph worm belongs to the family
Chordodidae, representatives of which are common in tropics, not in temperate regions.
Key w ord s: horse-hair worms, Nematomorpha, Chordodidae, tropical faunistic elements, report
from temperate region, parasites of insects.
Âîëîñàòèê-õîðäîäèäà (Nematomorpha, Gordiacea) èç Îðåíáóðãñêîé îáëàñòè Ðîññèè. Ñïèðèäî-
íîâ Ñ. Ý. – Ïðèâåäåíî îïèñàíèå îáùåé ìîðôîëîãèè è ñòðîåíèÿ ïîâåðõíîñòè êóòèêóëû åäèí-
ñòâåííîãî ýêçåìïëÿðà ñàìêè âîëîñàòèêà, îáíàðóæåííîé íà äíå êîëîäöà â Áóçóëóêñêîì áîðó â
Îðåíáóðãñêîé îáë. Ðîññèè. Ïî îñîáåííîñòÿì ñòðîåíèÿ ïîâåðõíîñòè êóòèêóëû ýòîò âîëîñàòèê
îòíîñèòñÿ ê ñåìåéñòâó Chordodidae, ïðåäñòàâèòåëè êîòîðîãî îáû÷íû â òðîïèêàõ, à íå â óìå-
ðåííûõ øèðîòàõ.
Êëþ÷ åâûå ñëî âà: âîëîñàòèêè, Nematomorpha, Chordodidae, ýëåìåíòû òðîïè÷åñêîé ôàóíû,
íàõîäêà â óìåðåííîì ïîÿñå, ïàðàçèòû íàñåêîìûõ.
Nematomorph worms (or horse-hair worms) are parasites of haemocoel of arthropods and considered
by modern classification as independent class of Ashelminthes (Nemathelminthes). Nematomorphs can be
found on all the latitudes though obviously more abundant in tropics, where they invade different insects,
mainly orthopteran ones (mantes, cockroaches, locusts). In the temperate regions of Eurasia nematomorphs
are less diverse than in tropics, and their fauna is mainly represented by the gordiids (parasites of beetles,
orthopterans, trichopterans and other water insects) and parachordodids (parasites of carabids and tenebri-
onids). The findings of nematomorphs of the tropical family Chordodidae are very rare in temperate areas
on the continent. A specimen of chordodid nematomoprh described below was found in Buzuluk forest.
Chordodes sp. (fig. 1, 2)
Mate r i a l. }, Russia, Orenburg Region, Buzuluk forest, on the well bottom (Ljachov). Sample N 140
in the Nematomorpha collection of the Zoological Institute, Russian Academy of Sciences. This specimen
bears the label with the inscription by the E. S. Kirjanova – (“Chordodes ljachovi”). As no description of
such a species was published it is only possible to consider such a name as “nomen colleciorum”.
Des cr ipt ion. Long slender worm of general yellowish coloration. Cuticle light-
yellow with scattered brown spots of separate areoles. Areoles not forming groups of
darker coloration. Body length 226 mm, the weight of fixed worm 94 mg. Mid-body
diameter 840 mkm. Numerous areoles (fig. 1, 2) – protrusions of globular matter sit-
ting on fibrous cuticular layers. Most common areoles of first type (A I) 2—4 mkm
high conical or hemispherical tubercles with 1—7 small spikes atop. A I base usually
elongated across the body longitudinal axis, elliptical, polygonal or irregular in shape.
A I base size about 5—11 x 4—9 mkm. Spikes atop A I 1—3 mkm long. A I intercon-
nected with net-like pattern of lines on cuticle surface.
S. E. Spiridonov 86
Areoles of second type (A II) usually 10 mkm high and bearing 3—5 mkm long
hairs atop. A II base always round or slightly elliptical, of 8—9 mkm diameter. A II
mainly in pairs or in small groups of 3—7 ones, only rarely as singular ones.
Hyaline 7—8 mkm high spines rarely situated between two A II, sitting on cuticle
surface, not on the areole, unlike two following types of spines for which an A I serv-
ing as a base: hyaline 15—17 mkm high spines without channel with 5—7 mkm diame-
ter base and 7—9 mkm high spines of 2—4 mkm diameter of the base with longitudinal
axial channel. Rarely spines situated on the A II were found (fig. 1).
Two types of vesicular structures beneath cuticle surface: double vesicles and
round pores. Closely situated double vesicles 3—4 mkm in diameter each forming spin-
dle-shaped 6—7 mkm long space. Double vesicle axis always across body longitudinal
axis. Comparatively rare round 3—4 mkm pores always between two joined A II.
Host. Unknown.
Taxonom ic remarks. The specimen of Nematomorpha described above be-
longs to the family Chordodidae. Highly protruding areoles with hairs or spikes atop
are characteristic only for subfamily Chordodinae. Chordodids are mainly reported
from tropical areas, though representatives of the genera Euchordodes Heinze, 1937,
Pantachordodes Heinze, 1954 and Dacochordodes Capuse, 1965 were found in temper-
ate Europe (Schmidt-Rhaesa, 1997). Chordodids of the genera Chordodes (Creplin,
1847) and Spinochordodes Kirjanova, 1950 are quite common in Central Asia (Kirja-
Fig. 1. The cuticle surface of Chordodes sp. from Buzuluk, Orenburg region, Russia under light microscope.
A I – areoles of the first type; A II – areoles of second type; Dv – double vesicles under cuticle surface; S –
spines without axial channel; Sc – spines with axial channel; A II+Sc – spine atop the A II. Scale bar
10 mkm.
Ðèñ. 1. Ïîâåðõíîñòü êóòèêóëû Chordodes sp. èç Áóçóëóêà, Îðåíáóðãñêàÿ îáë. Ðîññèè, ïîä ñâåòîâûì
ìèêðîñêîïîì. A I – àðåîëû ïåðâîãî òèïà; A II – àðåîëû âòîðîãî òèïà; Dv – äâîéíûå ïîëîñòè ïîä
ïîâåðõíîñòüþ êóòèêóëû; S – øèïû áåç îñåâîãî êàíàëà; Sc – øèïû ñ îñåâûì êàíàëîì; A II+Sc –
ùåòèíêè íà âåðøèíå A II. Ìàñøòàáíàÿ ëèíåéêà 10 ìêì.
A Chordodid Worm from Orenburg Region of Russia ... 87
nova, 1950), but findings of these animals further to the North are rare. Recently
Chordodes sajanensis Spiridonov, 2000 was described from Minussinsk Valley, Kras-
noyarsk Region (Spiridonov, 2000). The specimen from Buzuluk lacks coarse granules
on the surface of protruding areoles, which were reported for Pantachordodes and
Dacochordodes (Spiridonov et al., 1992; Schmidt-Rhaesa, 1997). Though Euchordodes
libellulovivens Heinze, 1937 is quite obscurely described, it can be distinguished from
the Buzuluk specimen by the presence of bristles in the interareolar furrows. In our
opinion, the specimen found in Buzuluk belongs to the genus Chordodes, demonstrat-
ing such characteristics of this genus as loose groups of protruding areoles with hairs
atop and prominent spines (more than 10 mkm high and 5—6 mkm in base diameter)
on the cuticle surface.
Male cuticle of chordodids is richer in morphological details than female cuticle.
In absence of males we are unable to identify specimen to the species level. The mor-
phology of cuticle in this specimen differs profoundly from other representatives of the
genus Chordodes, described from the territory of the former USSR (Kirjanova, 1950).
We do not describe new species for this specimen, as such a description would be in-
complete due to the lack of males. The label data are also not complete, as date is ab-
sent and possible host for parasitic stage of this nematomorph can not be identified. It
is believed that described specimen survived quite a long period in water, as its surface
Fig. 2. The cuticle surface of Chordodes sp. from Buzuluk, Orenburg region, Russia under scanning electron
microscope. Scale bar 10 mkm.
Ðèñ. 2. Ïîâåðõíîñòü êóòèêóëû Chordodes sp. èç Áóçóëóêà, Îðåíáóðãñêàÿ îáë. Ðîññèè, â ñêàíèðóþùåì
ýëåêòðîííîì ìèêðîñêîïå. Ìàñøòàáíàÿ ëèíåéêà 10 ìêì.
S. E. Spiridonov 88
is covered with a layer of mucous substance. This substance is produced by subcuticu-
lar glands of gordiids and makes the SEM study less informative, as obscuring the mi-
nor morphological details like spikes or hairs. Still the finding of chordodid worm in
quite a cold area of Russia is very interesting, as proving that the elements of tropical
fauna are able to survive in northern latitudes and under extreme winter conditions.
This publication was supported by RFBR grant 99—04—48144.
Căpuse I. Sur le Dacochordodes bacescui Capuse (Ord. Chordodida, fam. Chordodidae) // Trav. Mus.
natur. “Grigore Antipa”. – 1966. – 6, N 1. – P. 17—23.
Heinze K. Würmer oder Vermes. III. Saitenwürmer oder Gordioidea (Nematomorpha) / Eds. Dahl & Bisch-
off. Die Tierwelt Deutschlands Bd. 39. – Jena, 1941. – 78 S.
Kirjanova E. S. Gordiid worms (Nematomorpha) of the Zeravshan basin // Tr. Zool. In-ta Acad. nauk
SSSR. – 1950. – 9. – P. 255—280. – Russian.
Schmidt-Rhaesa A. Nematomorpha. Süsswasserfauna von Mitteleuropa. – Stuttgart : Gustav Fisher, 1997. –
125 S.
Schmidt-Rhaesa A. Variation of cuticular characters in the Nematomorpha: studies on Gordionus violaceus
(Baird, 1853) and G. wolterstorfii (Camerano, 1888) from Britain and Ireland // Systematic Parasito-
logy. – 2000. – 49, N 1. – P. 41—57.
Spiridonov S. E., Pikula Z. P., Drljevic E. T. Redescription of Dacochordodes bacescui Căpuse, 1966 (Nema-
tomorpha: Chordodidae) // Helminthologia. – 1992. – 29, N 2. – P. 193—196.
Spiridonov S. E. New species of gordian worms of the genus Chordodes (Nematomorpha: Chordodidae)
from the Minussinsk valley // Parasitologiya. – 2000. – 34, N 5. – P. 437—441. – Russian.
|
| id | nasplib_isofts_kiev_ua-123456789-3826 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0084-5604 |
| language | English |
| last_indexed | 2025-12-07T18:34:59Z |
| publishDate | 2003 |
| publisher | Інститут зоології ім. І. І. Шмальгаузена НАН України |
| record_format | dspace |
| spelling | Spiridonov, S.E. 2009-07-10T11:32:50Z 2009-07-10T11:32:50Z 2003 Волосатик-хордодида (Nematomorpha, Gordiacea) из Оренбургской области России / S. E. Spiridonov // Вестн. зоологии. — 2003. — Т. 37, № 1. — С. 85-88. — англ. 0084-5604 https://nasplib.isofts.kiev.ua/handle/123456789/3826 576.895.131.2 Приведено описание общей морфологии и строения поверхности кутикулы единственного экземпляра самки волосатика, обнаруженной на дне колодца в Бузулукском бору в Оренбургской обл. России. По особенностям строения поверхности кутикулы этот волосатик относится к семейству Chordodidae, представители которого обычны в тропиках, а не в умеренных широтах. General morphology and cuticular structures of a single female specimen of the nematomorph worm are described. The specimen was collected on the well bottom in Buzuluk Reserve, Orenburg region, Russia. According to the features of cuticular surface this nematomorph worm belongs to the family Chordodidae, representatives of which are common in tropics, not in temperate regions. en Інститут зоології ім. І. І. Шмальгаузена НАН України Краткие сообщения A Chordodid Worm (Nematomorpha, Gordiacea) from Orenburg Region of Russia Волосатик-хордодида (Nematomorpha, Gordiacea) из Оренбургской области России Article published earlier |
| spellingShingle | A Chordodid Worm (Nematomorpha, Gordiacea) from Orenburg Region of Russia Spiridonov, S.E. Краткие сообщения |
| title | A Chordodid Worm (Nematomorpha, Gordiacea) from Orenburg Region of Russia |
| title_alt | Волосатик-хордодида (Nematomorpha, Gordiacea) из Оренбургской области России |
| title_full | A Chordodid Worm (Nematomorpha, Gordiacea) from Orenburg Region of Russia |
| title_fullStr | A Chordodid Worm (Nematomorpha, Gordiacea) from Orenburg Region of Russia |
| title_full_unstemmed | A Chordodid Worm (Nematomorpha, Gordiacea) from Orenburg Region of Russia |
| title_short | A Chordodid Worm (Nematomorpha, Gordiacea) from Orenburg Region of Russia |
| title_sort | chordodid worm (nematomorpha, gordiacea) from orenburg region of russia |
| topic | Краткие сообщения |
| topic_facet | Краткие сообщения |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/3826 |
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