Planapheretima rarusa (Thai, 1997)

(Fig. 2)

Pheretima rarusa Thai, 1997: 1, Fig. 2 A.

Planapheretima rarusa — Blakemore 2007: 85.

Type material. Holotype: 1C (SORC-V.202) Nghe An province, Ky Son District, Muong Long commune, Tham Lang village, forest, 21 June 1986, coll. Tran Minh Khoi. Paratypes: 1C, 1A, same data as holotype; 1C, Nghe An province, Ky Son District, Chau Son, primary forest (Thai 1997).

Description. Body length 75mm, diameter 3.5–4mm, segments 92. Body flattened ventrally with creeping sole. Prostomium epilobous. First dorsal pore in 9/10. Clitellum in XIV–XVI. Setae numerous, more distributed ventrad, 65(57) in V, 81(71) in VIII, 27–30 in XVIII, 68 in XXV, yz=7ab, zz=11aa. Porophores in shallow pouches of parietal invagination. Genital markings small, oval papillae, ranged in transversal presetal and postsetal lines, 2 on XVII, 3+2 on XVIII and 2 on XIX. Spermathecal pores three pairs, dorsolateral in 5/6/7/8. Ampulla more or less heart-shaped, diverticula as long as or longer than ampulla, attaching to ducts. Testes sacs ventral, not separated. Seminal vesicles well developed in XI–XVI. Prostate glands well-developed, strongly lobuled. Ovisacs well developed. Last hearts in XIII. Intestine beginning at XV. Intestinal caeca in XXVI–XXVII. Septa 8/9/10 present, other septa thinned. Pharyngeal micronephridia in 6/7. (Data from Thai 1997: 1–2.)

Records from Vietnam. Nghe An Province (Ky Son: Muong Long) (Thai 1997).

Distribution. Only known from Vietnam.

Remarks. The species is very close to Planapheretima plumatomusculata (Thai, 1982) but differs in violet color dorsally, having copulatory pouch, genital markings in male regions, and accessory glands with long duct (Thai 1997). Types were rechecked for this study.