Theristus flevensis Stekhoven, 1935

Sivaleela, Gunasekaran, Surendar, Chandra & Kumar, Rubavath Rajendar, 2021, Free-living marine nematodes in Andhra Pradesh Coast, India, Records of the Zoological Survey of India 121 (2), pp. 283-301 : 299

40. Theristus flevensis Stekhoven, 1935 *

(Figure 21A-C)

1935. Theristus flevensis . Stekhoven. Grimpe, G and E. Wagler, Die Tierwelt der Nord-und. Ostsee., V. b: 1-173.

Material examined: 1♀, (Reg. No. N.435), Manginapudi,

4.iv.2016, Coll. G. Sivaleela.

Diagnostic characters: This species is characterized by the presence of 10-14 cephalic setae in six groups, unarmed conical buccal cavity. Tail conical without terminal setae.

Description: Body length is 1.3 mm. Maximum diameter of body is 41µm. Cuticle bears fine lateral with fine setae. Cephalic setae include twelve six longer 10 µm in size. Somatic setae are short. Amphids are 7 µm wide located from anterior. Tail is 4 a.b.d long. Spicules are 37 µm length and curved. Gubernaculum not distinct.

Distribution: Pichavaram mangroves ( Chinnadurai & Fernando, 2005). Elsewhere: Exe estuary, South -West England, Clyde estuary.

Remarks: The specimen is examined well with the earlier description of Warwick et al. (1998) by its cephalic setae size, amphid size.