Amynthas yamizoyamensis ( Ohfuchi, 1935 )

Blakemore, Robert J., 2012, New earthworm species from NIBR’s Jeju-do biosphere compared to historical and new Japanese types (Oligochaeta: Megadrilacea: Megascolecidae), Journal of Species Research 1 (2), pp. 133-150 : 145

publication ID	https://doi.org/10.12651/JSR.2012.1.2.133
persistent identifier	https://treatment.plazi.org/id/0D1D878E-FFE4-FFD0-FF10-FADFFB33A015
treatment provided by	Felipe
scientific name	Amynthas yamizoyamensis ( Ohfuchi, 1935 )
status

Treatment

Amynthas yamizoyamensis ( Ohfuchi, 1935)

[ Fig. 9 View Fig ].

Pheretima yamizoyamensis Ohfuchi, 1935: 413 , figs. 6- 10. Mt. Yamizo , Japan. Types?

Amynthas yamizoyamensis : Blakemore, 2010a: 193 (syn.? conformis).

Note. Name sometimes misspelt “yamijoyamensis” or “yamizoyamaensis”.

Material examined. None-fate and location of the original four syntypes unknown.

Description. Pinkish grey colour. Length, 136-177 mm, segments 117-136. Setae 25-48. Spermathecae in 5/6/7/ 8/9. GMs large paired in 17/18. Male pores, superficial but “elevated” and separated by 7-10 setae. Presence of septa 8/9/10 unrecorded. Spermathecal diverticula variable as short stalks to long coiled ducts. Seminal vesicles in 11 and 12. Intestine from 15, caeca simple from 28.

Distribution. Mt Yamizo ( 1022 m) lies in three prefectures: Fukushima, Ibaragi and Tochigi. A similar if not conspecific Yamanashi-ken specimen ( 14/2/2003) is 10

15 also in YNU collection although its caeca are slightly incised ventrally.

Remarks. The question of restoration from Easton’s (1981: 55) synonymy in A. micronarius mooted by Blakemore (2010a: 193) is here supported.

Kingdom	Animalia
Phylum	Annelida
Class	Clitellata
Order	Crassiclitellata
Family	Megascolecidae
Genus	Amynthas