Glyphidrilus wararamensis Chanabun & Panha 2013

Dimensions: body length 112 mm, diameter 3.3 mm in segment 8, 3.1 mm before clitellar wi in segment 19, 3.1 mm behind wi in segment 27 in intraclitellar region. Body cylindrical in anterior part, quadrangular in transverse section behind clitellum. 335 segments. Body colour pale brown with variations from red to pink at adjacent tissues of wi portion in different individuals of newly collected specimens after placement in 30% ethanol for narcotization. Dorsal surface considerably broader than the ventral at posterior end. Clitellar wi on ventro-lateral part of clitellum in 20–26, 3.0 mm in height, and about 2.2 mm in width on both sides. Prostomium zygolobous. Dorsal pores absent. Clitellum annular in 13–35. Four pairs of setae per segment from 2, setal formula aa:ab:bc:cd:dd = 0.6:0.2:0.8:0.3:0.7 in segment 8 and 0.9:0.5:1.4:0.6:1.2 in postclitellar segments. Female pores, male pores, and spermathecal pores are not visible. Gm: lateral paired or asymmetrical on bc in 17–19, 27, median unpaired on aa in 11–13, 15, 18–19, 29–30. Septa 5/6–8/9 thicker, 9/10–14/15 thick and 15/16 to the last segment thin. Gi small globular within 6–8. Intestine enlarged from 14. Dorsal blood vessel aborted anterior to 8. He in 8–11. No distinguishable np in first eleven segments. Sv in 9–12. Ov in 13–14. Testis in 10–11. Prostate and accessory glands absent. Sc sessile, elongated oval or globular in 13/14–17/18, 0.1–0.3 mm in diameter, three to nine on each side per segment.

The new species is known from the worm cast covered top soil at several locations of Suratthani, South Thailand, found on the shore connected to water.