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
18.
Drawida ghilarovi
Gates, 1969
species-complex
(stat. nov.)
Drawida ghilarovi
Gates, 1969: 674
. [Siberia.
Types
in
Moscow
: 37-38].
Drawida ghilarovi
:
Ganin, 2013
.
Distribution.
Siberia in South Primorye and Khabarovsk neighborhood. Described from southern slopes and spurs of the Sikhote-Alin Mountains, near Ussuriysk and in the Black Mountains. Its wider description by
Ganin (2013)
appears to show several distinct morphs/(sub-)species with incursion into
China
and North Korean border.
Description.
[From Gates’ 1969 original, Russian Red Data Book (Anon., 2014
‾
http://hunt.rin.ru/html/article 2319-1.html) and http://www.zooclub.ru/bezp/35.shtml]: Body a greenish or dark metallic bluish colour. Length
100-142 mm
, width
6 mm
. Segments 173-210. Prolobous. Lumbricine. GMs distantly paired discs, usually in bc to cd or sometimes even on the side of d, in 5-13. Clitellum ring-shaped 9-15. Spermathecal pores in 7/8. Male pores in 10/11 medio-lateral in bc, superficial without copulatory organ (i.e., no penes). Female pores in 11/12. Spermatheca with long coiled duct to exit (i.e., no spermathecal atria).
Vas
deferens long and coiled in 9-10 to hemispherical, sessile prostates. Ovaries in 11 with long egg sacs. Gizzards four of in 13-16. Nephridia vesiculate.
Remarks.
A. species-complex is suggested by its wide distribution and further refinement is required in relation to several similar regional congeners, especially those with four gizzards in 13-16, such as
D. tairaensis
,
D. guryeensis
Hong, 2002
,
D. csuzdii
and
D. jeombongsan
spp. nov. although several of these differ in having penes and arrangement of GMs. Gates compared it to Asian species also lacking spermathecal atria, viz.
D. hattamimizu
,
D. nemora
and
D. ofunatoensis
, the last two similarly lacking penes. Its genetic profile, on
topotypes
, would be most useful for comparison. Occurring as a litter species or subsoil geophage in forest soils, meadow-swamp and in peat to depths of
1 m
(Ganin, 1023), its cold tolerance is found to be
‾
16 C in worms to
‾
20 C for cocoons (
Berman
et al.
, 2010
). Nematode parasites are also report- ed (
Ivanova
et al.
, 2014
) uniquely for two
Drawida ghilarovi
morphs supporting the current suggestion of separate species rather than just morphs or ecotypes.