Kanchuria Julka, 1988

Narayanan, S. Prasanth, Paliwal, R., Kurien, Vijo T., Nath, Sabyasachi, Dey, Animesh, Nandy, Subhrajit, Kar, Prithwiraj, Goldar, Sujata, Thomas, A. P. & Julka, J. M., 2025, Description of two new Kanchuria Julka, 1988 (Clitellata: Megascolecidae) species of earthworms from Tripura State, North-eastern India, Zootaxa 5647 (2), pp. 101-116 : 114

Key to the species of Kanchuria Julka, 1988 (modified and updated based on Julka 1988 and Lone et al. 2020)

1. Spermathecal pore single, in midventral line, segmental.............. K. tripuraensis Narayanan, Paliwal & Julka sp. nov.

- Spermathecal pores paired, ventrolateral or ventromedian/ close to midventral line, segmental or intersegmental.......... 2

2. Spermathecal pores 2 pairs.............................................................................. 3

- Spermathecal pores more than two pairs................................................................... 4

3. Spermathecal pores on posterior margins of segment 7 and 8; paired seminal grooves diagonally placed with posterior ends convergent (V-shaped) to a single aperture at the centre of genital marking on 18/19............. K. sumeriana Julka, 1988

- Spermathecal pores on anterior margins of segment 8 and 9; paired seminal grooves convex towards the middle line, with posterior ends terminating at apertures of paired genital markings on the setal arc of segment 19................................................................................................. K. antrophyes ( Stephenson, 1924)

4. Spermathecal pores 3 pairs.............................................................................. 5

- Spermathecal pores 4 pairs.............................................................................. 9

5. Seminal grooves present; female pore single or paired........................................................ 6

- Seminal grooves absent; female pore single..... K. daribokgrensis Lone, Tiwari, Thakur, Pearlson, Pavlíc ̌ek & Yadav, 2020

6. Female pore single; prostate glands in segments 18–21, 22, 23................................................. 7

- Female pore paired; prostate glands in segments 17–19....................................................... 8

7. Larger body dimension (length> 250 mm, width> 4.5 mm); spermathecal duct thick, diverticulum club-shaped, shorter than duct plus ampulla................................................................... K. turaensis Julka, 1988

- Smaller body dimension (length <75 mm, width <3 mm); spermathecal duct thinner, slender, diverticulum tubular, longer than duct plus ampulla........................................... K. priyasankari Narayanan, Paliwal & Julka , sp. nov.

8. Spermathecal ampulla bulb-like; prostate extends in segments 18–19......................................................................................... K. karorensis Lone, Tiwari, Thakur, Pearlson, Pavlíc ̌ek & Yadav, 2020

- Spermathecal ampulla large elongated sac-like; prostate extends in segments 17–19........................................................................... K. mohiskulensis Lone, Tiwari, Thakur, Pearlson, Pavlíc ̌ek & Yadav, 2020

9. Seminal grooves present; spermathecal ampulla elongated, diverticulum tubular; prostate confined to segment 18.................................................... K. makhulensis Lone, Tiwari, Thakur, Pearlson, Pavlíc ̌ek & Yadav, 2020

- Seminal grooves absent; spermathecal ampulla oval, diverticulum clavate; prostate extends in segments 18–19............................................................................................ K. octotheca Julka, 1988