Henlea ventriculosa (Udekem, 1854)

Torii, Takaaki, Akagi, Tomohiro, Uchino, Toru & Kobayashi, Tohru, 2018, New descriptions of enchytraeid species (Clitellata: Enchytraeidae) from Korea, Journal of Species Research 7 (1), pp. 80-91 : 88-89

publication ID	https://doi.org/ 10.12651/JSR.2018.7.1.080
persistent identifier	https://treatment.plazi.org/id/038AA90E-FFF6-FFC2-BC6A-FB0EFB08F8E6
treatment provided by	Felipe
scientific name	Henlea ventriculosa (Udekem, 1854)
status

Treatment

6. Henlea ventriculosa (Udekem, 1854) View in CoL ( Fig. 8 View Fig )

Henlea ventriculosa (Udekem, 1854) View in CoL : 853, Figs. 1 View Fig , 4 View Fig , 6-9 View Fig View Fig View Fig View Fig ; Dózsa-Farkas & Hong, 2010: 31, Table 1, for complete synonym assign: Rota (1994).

New Korean name: Yusa-kkoma-ae-jireongi (ṞṂ꼬Ŕ OiNjffiḍ)

Material examined. Korea, Jeollabuk-do, Jeonju-si, Chonbuk National University, College of Agriculture & Life Science , soil and litter layers in maple trees cultivation of experimental farm (35°50′51.1″N, 127°08′00.3″E), 3 September 2007 and 6 October 2008, Y. Hong coll. GoogleMaps ; Jeollabuk-do, Jeonju-si, Chonbuk National University, College of Agriculture & Life Science , Earthworm experimental organic-type box (35°50′43.3″N, 127°08′02.5″E), 3 September 2007, Y. Hong coll. GoogleMaps ; North Korea, Pyunganbuk-do, Mt. Myohyang, Hyangsan at the branch of Chongchon river , litter layers in deciduous forest, 7 July 1988, Csuzdi coll. ; North Korea, Pyunganbuk-do, Mt. Myohyang, litter layers in deciduous forest, Isonnam near to a waterfall, 8 July 1988, Csuzdi coll.

Diagnosis. 9-15 mm long, color yellowish. Segment number 40-50-(60). Brain slightly longer than width and slightly incised posteriorly ( Fig. 8A View Fig ). Three pairs of free pharyngeal glands ( Fig. 8D, E View Fig ). Up to 6-9 chaetae in ventral bundles; chaetae in caudal segments as numerous as in anterior segments. Coelomocytes oval finely granulated not brownish ( Fig. 8C View Fig ). Seven pairs of preclitellar nephridia from 4/5 to 10/11. Gut widening abrupt at 8/9 and in VIII, four intestinal diverticula, closely applied to one another, outline spherical ( Fig. 8D View Fig ). Dorsal vessel from IX, blood colorless ( Fig. 8D View Fig ). Spermathecal ectal duct longer than ampulla without ectal glands. Ampullae not or slightly wider than ectal ducts. Ental ducts united before attachment to oesophagus ( Fig. 8E View Fig ). Nielsen and Christensen, 1959, Schmelz and Collado, 2010).

Remarks. Species complex. The specimens investigat- ed in this study are very similar to H. ventriculosa in the following: size (8-12 mm, 40-44 segments), intestinal diverticula in VIII, with large cavity inside; dorsal vessel origin in IX, 7 pairs of preclitellar nephridia. It was identified as H. ventriculosa in our first publication ( Dózsa-Farkas and Hong, 2010). However, we founded some morphological differences later in our new collections. The maximum number of chaetae in a bundle is only 6-7 (often a maxium of 8-9 chaetae in H. ventriculosa ). The coelomocytes are slightly rounder than those usually in H. ventriculosa and light brown. The main differences of these H. ventriculosa collect- ed from South Korea from H. ventriculosa described in Europe are shorter spermathecal ectal ducts and wider spermathecal ampullae. Molecular analysis also shows that these Korean specimens resemble H. ventriculosa collected from Europe. However, they are not identical. Therefore, it was named Henlea sp. ( Dózsa-Farkas, Felföldi and Hong, 2015). Further investigation should be conducted for these H. ventriculosa found in Korea.

Habitat and distribution. Moist and dry soils, cosmopolitan ( Schmelz and Collado, 2010).

Deposition. NIBRIV0000544614.