Published August 29, 2014 | Version v1
Taxonomic treatment Open

Drawida tairaensis Ohfuchi 1938

Description

10. Drawida tairaensis Ohfuchi, 1938

Drawida tairaensis Ohfuchi, 1938: 39, figs. 6-9. [From Taira-machi, Iwaki-ku, Fukushima-ken; Tsukinoki, Miyagi-ken; Morioka Iwate-ken, Honjo, Akita-ken. Types not known].

Drawida tairaensis: Easton, 1981: 39, tab. 1; Blakemore, 2003, 2010, 2014; Blakemore & Kupriyanova, 2010: tab. 3.

Distribution. As in original description.

Description. Flesh coloured or pinkish and transparent. Size 60-93 mm by up to 2.7 mm with 110-173 segments Setae small and closely paired (ab=cd). Clitellum 10-13. Spermathecal pores 7/8 projecting between b and c. Male pore on penes protruded or concealed in 10/ 11 in mid-bc. Female pores paired on 12 near 11/12 b lines. Genital papillae absent, only one specimen of fifteen had a marking in 8rhs.

Pharyngeal glands in 3-5. Septa 5/6-8/9 thickened. Hearts 6-9; dorsal blood vessel single. Spermathecal ampulla with convoluted duct that exits to atrium in 7/8 with 1 accessory gland in 8. Testis sacs spherical on 10/11 (9/ 10?) with vas deferens coiled and entering apex of male atrium. Ovarian chamber in 10/11/12 with eggsacs said to be “ slender and short ” but shown to extend from 12- 116 (Ohfuchi, 1938: fig. 7.2). Gizzards generally four in 13-19 (but shown by Ohfuchi, 1938: figs. 6.3 and 7.2 in just 13-16). Nephridia absent from first five segments and last two or three.

Remarks. Kobayashi (1940: 311) footnoted that D. tairaensis seems synonymous with Drawida anchingiana Chen, 1933. Ohfuchi (1938: 43) indeed said his species was similar to D. gisti anchingiana Chen but was distinguished as it lacked the accessory glands of the male atrium and spermathecal atrium, this despite his showing such a gland near the spermatheca for at least one Honjo specimen (Ohfuchi, 1938: fig. 9.1). The four gizzards were confused (as with the previous species) as he gave them (Ohfuchi, 1938: 42, 43) in 13-19 but showed them in 13-16 (Ohfuchi, 1938: fig. 6.3 and 7.2), the latter being more likely. It has not been found subsequently.

Notes

Published as part of Blakemore, Robert J., Lee, Seunghan & Seo, Hong-Yul, 2014, Reports of Drawida (Oligochaeta: Moniligastridae) from far East Asia, pp. 127-166 in Journal of Species Research 3 (2) on pages 141-142, DOI: 10.12651/JSR.2014.3.2.127, http://zenodo.org/record/13143732

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Linked records

Additional details

Biodiversity

Scientific name authorship
Ohfuchi
Kingdom
Animalia
Phylum
Annelida
Order
Moniligastrida
Family
Moniligastridae
Genus
Drawida
Species
tairaensis
Taxon rank
species
Taxonomic concept label
Drawida tairaensis Ohfuchi, 1938 sec. Blakemore, Lee & Seo, 2014

References

  • Ohfuchi, S. 1938. New species of earthworms from northeastern Honshu, Japan. Research Bulletin of Saito Ho-on Kai Museum 15: 33 - 52.
  • Easton, E. G. 1981. Japanese earthworms: a synopsis of the Megadrile species. ‾ Bulletin of the British Museum (Natural History) Zoology 40 (2): 33 - 65 [Available from: http: // www. archive. org / stream / bulletinofbritis 40 zoollond # pa ge / n 43 / mode / 2 up].
  • Blakemore, R. J. 2003. Japanese earthworms (Annelida: Oligochaeta): a review and checklist of species. Organisms, Diversity and Evolution 3 (3): 241 - 244. [Available from: http: // www. urbanfischer. de / journals / ode /; www. sencken berg. de / odes / 03 - 11. htm].
  • Kobayashi, S. 1940. Terrestrial Oligochaeta from Manchoukuo. The Science reports of the Tohoku Imperial University, IV Series 15: 261 - 256.
  • Chen, Y. 1933. Preliminary survey of the earthworms of the lower Yangtze Valley. Contributions from the Biological Laboratory of the Science Society of China (Zoology) 9: 177 - 296.