Earthworms (Annelida: Oligochaeta) from islands of Kien Hai District, Kien Giang Province, Vietnam, with descriptions of two new species and one subspecies Author Nguyen, Tung T. Author Trinh, Kim-Binh T. Author Nguyen, Hong-Lan T. Author Nguyen, Anh D. text Journal of Natural History 2017 2017-03-27 51 15 - 16 883 915 http://dx.doi.org/10.1080/00222933.2017.1294213 journal article 10.1080/00222933.2017.1294213 1464-5262 5180885 4EA4C2C0-BEC2-45BF-8B72-388302A53F51 Metaphire bahli ( Gates, 1945 ) ( Figure 8 ) Pheretima bahli Gates, 1945: 85 . Metaphire bahli – Sims & Easton 1972: 239 , Blakemore 2016: 11 , 22, figs 1, 9A–D, 10. Material examined 114 matures (CTU-EW 004.07) Hon Tre Island ( 09°58 ʹ 11 ʹʹ N , 104°50 ʹ 9.4 ʹʹ E ), Kien Hai District , Kien Giang Province , 16 October 2014 ; 132 matures (CTU-EW 004.08) Lai Son Island ( 09° 47 ʹ 57.6 ʹʹ N , 104°37 ʹ 24.5 ʹʹ E ), Kien Hai District , Kien Giang Province , 15 November 2013 ; 10 matures (CTU-EW 004.09) An Son Island ( 09°41 ʹ 11.8 ʹʹ N , 104°21 ʹ 10.1 ʹʹ E ), Kien Hai District , Kien Giang Province , 13 October 2014 , all coll . Kim-Binh T . Trinh. Diagnosis Medium size, length 58–100 mm , diameter 3.3–4.4 mm , segments 53–114. Prostomium 2/3 epilobous. First dorsal pore in 12/13. Setal number 39–47 in viii, 40–72 in xxx, 4–5 between male porophores in xviii; setal distance aa = 1.7–2.0 ab, zz = 1.6–2.0 zy. Three pairs of spermathecal pores in lateroventral intersegments 6/7/8/9. Male pores located inside copulatory pouches in xviii. Male region strongly concave to form an ellipsoidshaped or rounded area. Genital markings absent in spermathecal region, but two pairs in 17/18 and 18/19, in line with male pores. Testis sacs separated. Holandric. Intestinal caeca simple. Septa 8/9/10 absent. Habitats The species was found in natural forests, fruit plantations and house gardens in the Hon Tre and Lai Son islands. Figure 8. Metaphire bahli ( Gates, 1945 ) . (a, f) Male region (mp = male pore, gm = genital markings); (b, i) ventral view of spermathecal region (sp = spermathecal pore); (c, l) spermathecae (amp = ampulla, dv = diverticulum); (d, k) prostatic gland (ag = accessory gland); (e, j) intestinal caecum; (g) copulatory pouch, transverse body section; (h) accessory gland, transverse body section. Scale bar = 1 mm. Remarks The species is widely distributed in Vietnam ( Quang Binh , Thua Thien Hue, Da Nang , Quang Nam , Kon Tum , Gia Lai , Binh Dinh , Dak Lak , Binh Thuan , Khanh Hoa , Ba Ria-Vung Tau , Ho Chi Minh , Dong Nai , Tay Ninh , Tien Giang , Ben Tre , Vinh Long , Can Tho , Tra Vinh , Kien Giang , An Giang ) ( Nguyen et al. 2016 ) . It also occurs in Thailand, Myanmar, Philippines, Sri Lanka, Laos and Cambodia ( Nguyen et al. 2016 ).