Glyphidrilus stuhlmanni Michaelsen 1897

Dimensions: body length190 mm. Body cylindrical in anterior part, quadrangular in transverse section-behind clitellum. 540 segments. Anus dorso-terminal. Body colour pale brown. At posterior end dorsal surface considerably broader than the ventral. Clitellar wi on ventro-lateral part of clitellum in 43–65. Prostomium zygolobous. Dorsal pores absent. Clitellum annular in 30–68. Four pairs of setae per segment from 2, setal formula aa:ab:bc:cd:dd =1.0:0.5:1.5:0.5:1.0 in segment 8. Female pores, male pores and spermathecal pores not visible. Median unpaired gm on aa in 44–50. Septa 5/6–7/8 thicker, 8/9–11/12 thick and 12/13 to the last segment thin. Gi small, globular within 8. Intestine enlarged from 14. Dorsal blood vessel anterior to 8. He in 8–13. Np distinguishable from segment 15 onwards. Sv in 9–12, those of segment 12 are larger than the others. Ov in 13–14. Testis in 10–11. Prostate and accessory glands absent. Sc in 13/14–20/21, one to four on each side per segment.