Genus Tylolaimophorus
De Man, 1880
Syn.:  Triplonchium  Cobb, 1920
Diagnosis:  Body less than 2.0 mm long, contents very dense, often masking details.  Spear and extension tubular in section, dorsal and ventral sectors not fused anteriorly, base of extension knobbed, dorsal sector somewhat widened and pointed.  Guiding apparatus a complex, arched structure attached to short tubular section.  Amphids elongate, with ellipsoidal aperature and large fusus; canalis amphidialis almost absent. Oesophagus a slender tube expanding posteriorly to form pyriform basal bulb.  Female reproductive system amphidelphid.  Vulva transverse.  Spicules strongly curved, supplied with spiral protractor muscles.  Supplements vestigial.

Type species:  Tylolaimophorus typicus  De Man, 1880

Other species:
        T. bulgaricum (Andrassy, 1958) Goodey, 1963
            Syn.:  Triplonchium bulgaricum  Andrassy, 1958
        T. constrictus Sauer, 1968
        T. corpulentus Eroshenko and Teplyakov, 1977
        T. curvicaudatus  Eroshenko and Teplyakov, 1977
        T. cylindricum (Cobb, 1920) Goodey, 1963
            Syn.: Triplonchium cylindricum Cobb, 1920
        T. digitatus  Husain and Khan, 1967
        T. indicus  Husain and Khan, 1967
        T. minor  (Thorne, 1939) Goodey, 1963
            Syn.:  Triplonchium minor Thorne, 1939
        T. obtusicaudatum (Sch.-Stekhoven and Teunissen, 1938)
            Syn.:  Triplonchium obtusicaudatum  Sch.-Stekhoven and Teunissen, 1938
        T. parvum  (Thorne, 1939) n. comb.
            Syn.:  Triplonchium parvum  Thorne, 1939
        T. pilcatum  (Andrassy, 1961) Arpin, 1973
            Syn.:  Triplonchium pilcatum  Andrassy, 1961
        T. pugio Sauer, 1968
        T. tegmentum (Ivanova, 1980) n. comb.
            Syn.:  Triplonchium tegmentum  Ivanova, 1980

(Description- Jairajpuri & Ahmad, 1992)