Planapheretima tenebrica (Chen, 1946)

(Fig. 2)

Pheretima tenebrica Chen, 1946: 93, Plate III Fig. A; Thai 1997: 4, Fig. 3 A. Planapheretima tenebrica — Sims & Easton 1972: 233; Easton 1979: 77, Figs 27l, 30e; Nakamura 1999: 5; Blakemore 2007: 97.

Type locality. China (Szechuan).

Records from Vietnam. Vinh Phuc Province (Tam Dao) (Thai 1997).

Distribution. China; Vietnam.

Remarks. The population in Vietnam differs from the original description (Chen 1946) in bigger size, more setae and having simple intestinal caeca (Thai 1997).