Free-living marine nematodes in Andhra Pradesh Coast, India Author Sivaleela, Gunasekaran Author Surendar, Chandra Author Kumar, Rubavath Rajendar text Records of the Zoological Survey of India 2021 121 2 283 301 journal article 10.26515/rzsi/v121/i2/2021/151251 2581-8686 13186309 3. Adoncholaimus fuscus ( Bastian, 1865 ) Filipjev, 1918 1865. Oncholaimus fuscus Bastian , The Trans. Linne. Soc. London . 25 . Part II:73-184 1918. Adoncholaimus fuscus Filipjev, Trans. Zool. Lab. Sevastopol. Biol. Sta. Russ. Academy of Sciences . Series. 11. No.4 9 issue 1 7 II) Material examined : 1 ♂ (Reg. No. N. 324), Coringa, 3.iv.2016 , Coll. G. Sivaleela. Diagnostic characters: This species is characterized from other species by the presence of long slender spicule in male species.