Drawida sp. 2
publication ID |
https://doi.org/ 10.5281/zenodo.13244835 |
persistent identifier |
https://treatment.plazi.org/id/0D51326D-B667-FFFD-9F3E-FD1342BE93DF |
treatment provided by |
Felipe |
scientific name |
Drawida sp. 2 |
status |
|
( Fig. 7)
Material examined. – 2 immature (aclitellate) specimens (1 dissected)( ZRC), Rifle Range Rd. opposite to Murnane Reservoir, coll. K. K. P. Lim, D. C. J. Yeo & K. L. Yeo, 5 Mar.2003 .
Description. – Thin, slender worm, length 67-100 mm, diameter 1.2-1.7 mm. Segments numbering 178-208. Prostomium prolobous. Setae closely paired, ab = cd, aa slightly smaller than bc, dd greater than 0.5 body circumferences. Clitellum not distinguishable. Spermathecal pores one pair in 7/8, small, inconspicuous slits, medial to c. Male pores not visible. Female pores in 11/12. A pair of white, elongate and slightly diagonal areas with bluntly rounded ends across 10/11 ( Fig. 7A). A pair of white elongate epidermis thickening extending from 9/10 to just behind the setal line on segment X, each area about 0.55 mm in length, 0.5-0.55 mm in width ( Fig. 7A). Preserved specimens pale grey.
Septa 5/6-8/9 thick. Gizzards five in XIX-XXIII, round, yellowish. Hearts VI-IX. Nephridia holoic. Testis sacs one pair, extending into X and XI, smooth, yellowish, elongated oval, 0.98-1.07 mm in length, about 0.45 mm in width. Sperm duct thin, twisted, consisting of several small coils ( Fig. 7B). Male atrium small, about 0.35 mm in length and 0.18 mm in width. Accessory glands absent. Ovaries not visible. Ovisacs small, one pair extending from septum 11/12 and confined in segment XII, about 0.35 mm long. Spermathecae very small, lying on anterior face of septum 7/8, tongue-like, stick out from body wall, about 0.2 mm in length ( Fig. 7C).
Remarks. – The thin, slender feature and the gizzard positions in more posterior segments distinguish Drawida sp. 2 from all other Drawida species of Burma and the Malay Peninsula.
ZRC |
Zoological Reference Collection, National University of Singapore |
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