Drawida koreana shindo Blakemore, 2014

Blakemore, Robert J., Lee, Seunghan & Seo, Hong-Yul, 2014, Reports of Drawida (Oligochaeta: Moniligastridae) from far East Asia, Journal of Species Research 3 (2), pp. 127-166 : 146

15. Drawida koreana shindo Blakemore sp. nov.

Material. Holotype (H) IV0000246437 (DNA sample WO27 ) mature specimen, dissected, from mud beside creek on north side of Sido Bridge , Shindo (sometimes ‘Sindo’) Island, Incheon (GPS 37.530490, 126.440730), collected 4 th May, 2012 by RJB and provisionally identified as “ Drawida cf japonica Shindo sp. 1 ”. Found with D. companio sp. nov.

Etymology. Named after type locality (noun in apposition).

Description. Light or pale brown colour. Length 80 mm with 140 segments. Prolobous. Clitellum tumid 1 / 29 -13. Dorsal pores absent. Nephropores near c-lines. Spermathecal pores small in 7/8 near c-lines. Male pores on small porophores at 10 posteriorly in mid-bc-lines. Female pores in b-lines on 12 near 11/12. Genital marking as unilateral disc presetally in bc on 8lhs and 9rhs and smaller, postsetal in 8rhs in bc.

Septa 5/6-8/9 thick, 10/11 attaches to 11/12 ventrally. Spermathecae have large atria on moderately long ducts from small ampullae attached below septum 7/8, no glands are associated in 7 or 8. Male pores on short vasa deferentia with large glandular prostates. Ovaries are in 11. Ovisacs in 11-17. Gizzards in 12-14, i.e., three of. Intestine in 15-17 distended and rugose, thin in 18-19, then dilated from 20 onwards. Nephridia elongate but avesiculate only the ducts thickened. Hearts in 6-9. Dorsal blood vessel single.

Remarks. This taxon belongs to the group with male pores in 10 but complies more with Drawida japonica sub-spp than with D. koreana sub-spp as it lacks the characteristic blue colouration, has GMs, a stubby penis and coiled spermathecal duct. The DNA data (Appendix, Fig. 1) show it to be closest to D. koreana nanjiro , as already noted, or an unidentified Japanese taxon (Genbank AB5 92437). Since both D. japonica and D. koreana occur in Japan, this latter comparison is inconclusive. Nevertheless, its distinction from other taxa in the current study, including its sympatric sample WO28 from Drawida companio sp. nov., merits its description and naming as a sub-species new to science for similar reasons to D. koreana nanjiro .