Four new and six known species of the genus Dorylaimellus Cobb, 1913 (Nematoda: Belondiridae) from India

Abstract

Four new and six known species of Dorylaimellus Cobb, 1913 are described. Dorylaimellus shamimi sp. nov. has body 1.1–1.2 mm, offset lip region, odontostyle 7–8 μm, pharyngeal expansion 35–43%, longitudinal vulva, amphidelphic gonad and conoid ventrally arcuate tail. Dorylaimellus parindicus sp. nov. has body 1.2–1.5 mm, distinct ventral body pores, lip region offset, odontostyle thick walled, 5–6 μm, odontophore with poorly developed flanges, pharyngeal expansion 38–45%, longitudinal vulva, amphidelphic gonad and short conoid tail. Dorylaimellus hanifae sp. nov. has body 0.3–0.4 mm, offset lip region with peri-oral disc, odontostyle 4–5 μm, pharyngeal expansion 50–55%, transverse vulva, amphidelphic gonad and clavate tail. Dorylaimellus khasianus sp. nov. has body 1.2–1.4 mm; offset lip region; odontostyle 7 μm; odontophore with well developed flanges; pharyngeal expansion 31–35%; longitudinal vulva; amphidelphic gonad and elongate-conoid tail. Dorylaimellus occidentalis, Dorylaimellus parvulus, Dorylaimellus deviatus, Dorylaimellus paraclavatus, Dorylaimellus salvus and Dorylaimellus filamentosus are redescribed.

Keywords:

• Belondiridae
• Dorylaimellus
• India
• known species
• new species
• taxonomy

Acknowledgements

The authors are grateful to the Chairman, Department of Zoology, Aligarh Muslim University for providing laboratory facilities.