Minolaimus Vitiello 1970

Updated key to species of the genus Minolaimus (modified from Sun et al. 2021)

1. Tail short, not filiform; amphid close to head apex ..................................................................... ....................................................................................... M. apicalis Sun, Huang and Huang, 2021

- Tail long, filiform; amphid posterior to head apex ................................................................ 2

2. Body longer than 3 mm, male with 29 cup-shaped precloacal supplements ................... ............................................................ M. multisupplementatus Sun, Huang and Huang, 2021

- Body shorter than 2.5 mm, male with 20 or fewer precloacal supplements .............. 3

3. Body shorter than 1 mm; tail with 1/3 conical portion ... ... M. cervoides Vitiello, 1970

- Body longer than 1.7 mm; tail with 1/5 conical portion ..................................................... 4

4. Lateral differentiation with three longitudinal rows of larger dots, amphid located less than 2 hd from anterior end, male with 20 precloacal supplements ................................... ........................................................................................................................ M. lineatus Vitiello, 1970

- Lateral differentiation with six longitudinal rows of larger dots, amphid located 4.6 hd from anterior end, male with about 17 precloacal supplements ........................................... .................................................................................................................... M. distalamphidus sp. nov.