Published October 7, 2021 | Version v1
Taxonomic treatment Open

Tylencholaimus micronanus Yeates 1979

  • 1. Nematode Biodiversity Research Lab, Department of Zoology, Aligarh Muslim University, Aligarh- 202002, India.

Description

Tylencholaimus micronanus Yeates, 1979

Fig. 4, Table 3

Tylencholaimus micronanus Yeates, 1979: 423–425.

Tylencholaimus vanguimus Mohilal & Dhanachand, 2000: 33–35.

Tylencholaimus micronanus – Peña-Santiago & Coomans 1994c: 362–364. — Peña-Santiago 2008: 123.

Material examined

INDIA – Kerala State • 6 ♀♀; Kasaragod district, Ranipuram National Park; 12.4º26′18.3″ N, 75.3º58′94.4″ E; 5–15 cm depth; 15 Nov. 2016; soil samples collected from around the roots of grasses (unidentified); slides reference number AMU/ZD/NC/ Tylencholaimus micronanus /1–3. – Karnataka State • 4 ♀♀; Kodagu district, Bhagamandala; 12°23′29.1″ N, 75°31′50.0″ E; 5–15 cm depth; 8 Nov. 2016; soil samples collected from around the roots of grasses (unidentified); slides reference number AMU/ZD/NC/ Tylencholaimus micronanus /4–6.

Remarks

Yeates (1979) described Tylencholaimus micronanus from New Zealand. Baqri (1991) reported it from Sikkim, India whereas, Peña-Santiago & Coomans (1994c) restudied the type material of this species and provided a complete description. Mohilal & Dhanachand (2000) described a new species, Tylencholaimus vanguimus from Manipur, India which was synonymized with T. micronanus by Peña- Santiago (2008). The morphometrics of the present populations conform well with the type population except in having a slightly shorter odontostyle (4.5–5.5 vs 6.0–7.0 μm) and in the presence of a terminal caudal pore (vs absent). The present population also conforms well with Sikkim as well as Manipur populations except in having a shorter and robust body (0.31–0.39 vs 0.44 mm, a = 17–23 vs 25); lower b value (2.4–2.8 vs 3.6); a slightly shorter odontostyle (4.5–5.5 vs 6.0 µm) and tail (11–12 vs 13 µm) than in the Sikkim population; and a slightly lower c’ ratio (0.8–1.0 vs 1.0–1.1) than in Manipur population, as well as the presence of terminal caudal pore (vs absent in the Manipur population).

Notes

Published as part of Islam, Md Niraul & Ahmad, Wasim, 2021, Five new and five known species of the genus Tylencholaimus de Man, 1876 (Nematoda: Dorylaimida: Tylencholaimoidea) from Western Ghats of India, pp. 58-105 in European Journal of Taxonomy 774 (1) on pages 65-69, DOI: 10.5852/ejt.2021.774.1531, http://zenodo.org/record/5557162

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Linked records

Additional details

Biodiversity

Event date
2016-11-08 , 2016-11-15
Family
Dorylaimidae
Genus
Tylencholaimus
Kingdom
Animalia
Order
Dorylaimida
Phylum
Nematoda
Scientific name authorship
Yeates
Species
micronanus
Taxon rank
species
Verbatim event date
2016-11-08 , 2016-11-15
Taxonomic concept label
Tylencholaimus micronanus Yeates, 1979 sec. Islam & Ahmad, 2021

References

  • Yeates G. W. 1979. Nine new Dorylaimida (Nematoda) from the New Zealand region. Nematologica 25: 419 - 438. https: // doi. org / 10.1163 / 187529279 X 00587
  • Mohilal N. & Dhanachand C. 2000. Studies on soil nematodes of Manipur-VII: Tylencholaimus vanguimus sp. n. and Dorella papilla sp. n. Indian Journal of Nematology 30: 33 - 37.
  • Pena-Santiago R & Coomans A. 1994 c. Revision of the genus Tylencholaimus de Man, 1876. Prodelphic species: Part III. Nematologica 40: 348 - 368. https: // doi. org / 10.1163 / 003525994 X 00256
  • Pena-Santiago R. 2008. The genus Tylencholaimus de Man, 1876 (Dorylaimida: Tylencholaimidae) revisited twelve years after. Journal of Nematode Morphology and Systematics 11: 119 - 128.
  • Thorne G. 1939. A monograph of the nematodes of the superfamily Dorylaimoidea. Capita Zoologica 8: 1 - 261.
  • Baqri Q. H. 1991. Contribution to the fauna of Sikkim. Nematodes associated with citrus from Sikkim, India. Records of the Zoological Survey of India (occassional paper) 128: 1 - 103.