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 41. Theristus longus Platt, 1973 1973. Theristus longus Platt. Cahiers de biologie Marine ., 14 (3): 295-321. Material examined : 3♂ , (Reg. No. N.270), Coringa, 3.iv.2016 , Coll. G. Sivaleela. Diagnostic characters : This species differs by the tail conical without terminal setae. Distribution : Tammenapatanam, Andhra ( Ansari et al. , 2013 ) Continental shelf of southwestern Bay of Bengal ( Ansari et al ., 2012 ); Sundarban mangroves ( Ansari and Bhadury, 2017 ); www.biosearch.in. Elsewhere : Strangford Lough, North-East Ireland . Remarks : The species examined well with the earlier description of Platt (1998) by its long tail length, body length and amphid size. This species was recorded by Ansari et al at Tammenapatanam.