New genus, three new and two known species of the family Onchulidae Andrassy, 1964 with notes on systematics and biology of the family

O.V. Holovachov, G. Winiszewska, D. Sturhan, A. Esquivel, J. Wu

Research output: Contribution to journalComment/Letter to the editorAcademic

Abstract

Tobrilonchulus novaezelandiae gen. n., sp. n. from New Zealand is particularly characterized by outer labial and cephalic sensilla arranged at the same level; stoma with one minute dorsal tooth, two ventrosublateral denticles and two drop-shaped sclerotizations; presence of gubernaculum; and long fl agelliform tail with caudal glands and spinneret. Tobriloides choii is redescribed on the basis of type specimens and fresh material collected in South Korea and China; particularly, new data are provided about the morphology of stoma and secretory-excretory system. Tobriloides camerunensis sp. n. from Cameroon is distinguished by shape of stoma, short cardia, number of supplements and tail shape. Onchulus fl agellatus sp. n. from Benin is distinguished by sexually dimorphic amphids, fi lamentous spermatozoa, supplements extending to the pharyngeal region and arranged in two sets, presence of gubernaculum, and short tail without caudal glands and spinneret. Limonchulus costaricanus sp. n. from Costa Rica is differentiated from other species of the genus by the presence of an organellum dorsale. Males of Stenonchulus troglodytes, described for the fi rst time, have spicules without distinct manubrium, with anteriorly directed projection and with arcuate conoid lamina; small and slender gubernaculum; and four midventral precloacal sensilla. Type specimens of Pseudonchulus inermis, Paronchulus straticauda and Onchulus fi licaudatus are redescribed. A cladistic analysis of 13 species representing seven genera of Onchulidae is provided on the base of published and updated morphological data. The genus Paronchulus is synonymised with Onchulus, the genus Pseudonchulus is synonymised with Kinonchulus, and Pseudonchulus inermis is synonymised with Kinonchulus sattleri.
Original languageEnglish
Pages (from-to)1-30
JournalJournal of Nematode Morphology and Systematics
Volume11
Issue number1
Publication statusPublished - 2008

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male reproductive system
stomata
new genus
tail
sensilla
type collections
taxonomy
Biological Sciences
Troglodytes
excretory system
sclerotization
Benin
laminae (animals)
South Korea
Cameroon
lips
Costa Rica
teeth
spermatozoa
China

Cite this

@article{d83d37def4194d3e847a099a87409fed,
title = "New genus, three new and two known species of the family Onchulidae Andrassy, 1964 with notes on systematics and biology of the family",
abstract = "Tobrilonchulus novaezelandiae gen. n., sp. n. from New Zealand is particularly characterized by outer labial and cephalic sensilla arranged at the same level; stoma with one minute dorsal tooth, two ventrosublateral denticles and two drop-shaped sclerotizations; presence of gubernaculum; and long fl agelliform tail with caudal glands and spinneret. Tobriloides choii is redescribed on the basis of type specimens and fresh material collected in South Korea and China; particularly, new data are provided about the morphology of stoma and secretory-excretory system. Tobriloides camerunensis sp. n. from Cameroon is distinguished by shape of stoma, short cardia, number of supplements and tail shape. Onchulus fl agellatus sp. n. from Benin is distinguished by sexually dimorphic amphids, fi lamentous spermatozoa, supplements extending to the pharyngeal region and arranged in two sets, presence of gubernaculum, and short tail without caudal glands and spinneret. Limonchulus costaricanus sp. n. from Costa Rica is differentiated from other species of the genus by the presence of an organellum dorsale. Males of Stenonchulus troglodytes, described for the fi rst time, have spicules without distinct manubrium, with anteriorly directed projection and with arcuate conoid lamina; small and slender gubernaculum; and four midventral precloacal sensilla. Type specimens of Pseudonchulus inermis, Paronchulus straticauda and Onchulus fi licaudatus are redescribed. A cladistic analysis of 13 species representing seven genera of Onchulidae is provided on the base of published and updated morphological data. The genus Paronchulus is synonymised with Onchulus, the genus Pseudonchulus is synonymised with Kinonchulus, and Pseudonchulus inermis is synonymised with Kinonchulus sattleri.",
author = "O.V. Holovachov and G. Winiszewska and D. Sturhan and A. Esquivel and J. Wu",
year = "2008",
language = "English",
volume = "11",
pages = "1--30",
journal = "Journal of Nematode Morphology and Systematics",
issn = "1139-5192",
publisher = "Universidad de Ja{\'e}n, Centro de Profesorado Sagrada Familia de Ubenda",
number = "1",

}

New genus, three new and two known species of the family Onchulidae Andrassy, 1964 with notes on systematics and biology of the family. / Holovachov, O.V.; Winiszewska, G.; Sturhan, D.; Esquivel, A.; Wu, J.

In: Journal of Nematode Morphology and Systematics, Vol. 11, No. 1, 2008, p. 1-30.

Research output: Contribution to journalComment/Letter to the editorAcademic

TY - JOUR

T1 - New genus, three new and two known species of the family Onchulidae Andrassy, 1964 with notes on systematics and biology of the family

AU - Holovachov, O.V.

AU - Winiszewska, G.

AU - Sturhan, D.

AU - Esquivel, A.

AU - Wu, J.

PY - 2008

Y1 - 2008

N2 - Tobrilonchulus novaezelandiae gen. n., sp. n. from New Zealand is particularly characterized by outer labial and cephalic sensilla arranged at the same level; stoma with one minute dorsal tooth, two ventrosublateral denticles and two drop-shaped sclerotizations; presence of gubernaculum; and long fl agelliform tail with caudal glands and spinneret. Tobriloides choii is redescribed on the basis of type specimens and fresh material collected in South Korea and China; particularly, new data are provided about the morphology of stoma and secretory-excretory system. Tobriloides camerunensis sp. n. from Cameroon is distinguished by shape of stoma, short cardia, number of supplements and tail shape. Onchulus fl agellatus sp. n. from Benin is distinguished by sexually dimorphic amphids, fi lamentous spermatozoa, supplements extending to the pharyngeal region and arranged in two sets, presence of gubernaculum, and short tail without caudal glands and spinneret. Limonchulus costaricanus sp. n. from Costa Rica is differentiated from other species of the genus by the presence of an organellum dorsale. Males of Stenonchulus troglodytes, described for the fi rst time, have spicules without distinct manubrium, with anteriorly directed projection and with arcuate conoid lamina; small and slender gubernaculum; and four midventral precloacal sensilla. Type specimens of Pseudonchulus inermis, Paronchulus straticauda and Onchulus fi licaudatus are redescribed. A cladistic analysis of 13 species representing seven genera of Onchulidae is provided on the base of published and updated morphological data. The genus Paronchulus is synonymised with Onchulus, the genus Pseudonchulus is synonymised with Kinonchulus, and Pseudonchulus inermis is synonymised with Kinonchulus sattleri.

AB - Tobrilonchulus novaezelandiae gen. n., sp. n. from New Zealand is particularly characterized by outer labial and cephalic sensilla arranged at the same level; stoma with one minute dorsal tooth, two ventrosublateral denticles and two drop-shaped sclerotizations; presence of gubernaculum; and long fl agelliform tail with caudal glands and spinneret. Tobriloides choii is redescribed on the basis of type specimens and fresh material collected in South Korea and China; particularly, new data are provided about the morphology of stoma and secretory-excretory system. Tobriloides camerunensis sp. n. from Cameroon is distinguished by shape of stoma, short cardia, number of supplements and tail shape. Onchulus fl agellatus sp. n. from Benin is distinguished by sexually dimorphic amphids, fi lamentous spermatozoa, supplements extending to the pharyngeal region and arranged in two sets, presence of gubernaculum, and short tail without caudal glands and spinneret. Limonchulus costaricanus sp. n. from Costa Rica is differentiated from other species of the genus by the presence of an organellum dorsale. Males of Stenonchulus troglodytes, described for the fi rst time, have spicules without distinct manubrium, with anteriorly directed projection and with arcuate conoid lamina; small and slender gubernaculum; and four midventral precloacal sensilla. Type specimens of Pseudonchulus inermis, Paronchulus straticauda and Onchulus fi licaudatus are redescribed. A cladistic analysis of 13 species representing seven genera of Onchulidae is provided on the base of published and updated morphological data. The genus Paronchulus is synonymised with Onchulus, the genus Pseudonchulus is synonymised with Kinonchulus, and Pseudonchulus inermis is synonymised with Kinonchulus sattleri.

M3 - Comment/Letter to the editor

VL - 11

SP - 1

EP - 30

JO - Journal of Nematode Morphology and Systematics

JF - Journal of Nematode Morphology and Systematics

SN - 1139-5192

IS - 1

ER -