Reports of Drawida (Oligochaeta: Moniligastridae) from far East Asia
Author
Blakemore, Robert J.
Author
Lee, Seunghan
Author
Seo, Hong-Yul
text
Journal of Species Research
2014
2014-08-29
3
2
127
166
http://dx.doi.org/10.12651/jsr.2014.3.2.127
journal article
10.12651/JSR.2014.3.2.127
2713-8615
13143732
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
.