Tylencholaimus cosmos

Autor: Islam, Md Niraul, Ahmad, Wasim
Rok vydání: 2021
Předmět:
DOI: 10.5281/zenodo.5558779
Popis: Tylencholaimus cosmos (Dhanam & Jairajpuri, 1999) Fig. 6, Table 5 Amphitylencholaimus cosmos Dhanam & Jairajpuri, 1999: 2, 4 Tylencholaimus cosmos – Peña-Santiago 2008: 120–121. Material examined INDIA – Goa State • 3 ♀♀; South Goa district, Verna; 15º35.3′59.3″ N, 73º92.2′26.4″ E; 5–15 cm depth; 22 Apr. 2016; soil sample collected from around the roots of grasses (unidentified); slide reference number AMU/ZD/NC/ Tylencholaimus cosmos /1. – Kerala State • 3 ♀♀; Thiruvananthapuram district, Ponmudi hill; 8º45′36.2″ N, 77º07′08.2″ E; 5–15 cm depth; 4 Nov. 2017; soil sample collected from around the roots of grasses (unidentified); slide reference number AMU/ZD/NC/ Tylencholaimus cosmos /2. Remarks Dhanam & Jairajpuri (1999) described Amphitylencholaimus cosmos from Malnad tracts of Karnataka, India. Peña-Santiago (2008) did not accept the generic status of Amphitylencholaimus and transferred A. cosmos to Tylencholaimus. Ahad & Ahmad (2016) reported this species from Kaziranga National Park, Assam, India. Dhanam & Jairajpuri (1999) characterized this species by having the anterior slender part of pharynx expanding gradually to form the cylindroid basal part but in their fig. 1C, the anterior part of pharynx appears slender, expanding abruptly to form the basal expanded part. In the present specimens, the anterior part of pharynx is also slender, expanding abruptly to form the basal expanded part. The morphometrics of the present populations conform well with the type population except in having a shorter body length (0.55–0.76 vs 0.7–0.9 mm), slightly lower b value (3.1–4.2 vs 3.9–5.0) and shorter odontophore length (8.5–10 vs 12–14 μm). The present populations also conform well with the Assam population except in having a slightly higher lip region (3.0–3.5 vs 2.0–3.0 μm) and a longer rectum (17–22 vs 13–14 μm).
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 73-76, DOI: 10.5852/ejt.2021.774.1531, http://zenodo.org/record/5557162
{"references":["Dhanam M. & Jairajpuri M. S. 1999. New leptonchid nematodes: one new genus and eleven new species from Malnad tracts of Karnataka, India. International Journal of Nematology 9: 205 - 209.","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.","Ahad S. & Ahmad W. 2016. Description of two new and six known species of the genus Tylencholaimus de Man, 1876 (Nematoda: Dorylaimida) with a diagnostic compendium and key to species. Zootaxa 4107: 451 - 490. https: // doi. org / 10.11646 / zootaxa. 4107.4.1"]}
Databáze: OpenAIRE