9,770 research outputs found
Amynthas nhonmontis Nguyen & Nguyen 2015
No full text<i>Amynthas nhonmontis</i> Nguyen & Nguyen, 2015 <p> <i>Pheretima nhonmontis</i> Nguyen & Nguyen, 2015: 132, Fig. 2.</p> <p> <b>Type locality.</b> Vietnam (An Giang: Tinh Bien).</p> <p> <b>Type material.</b> CTU, Vietnam.</p> <p> <b>Examined material.</b> 1 C (<b>CTU-EW.023.h01</b>) and 6 C (<b>CTU-EW.023.p02</b>) natural forest, Nhon mountain, (104°56'09.2"E, 10°35'39.6"N), 56 m a.s.l., Tinh Bien district, An Giang province, Vietnam, 7/11/2010, coll. Nguyen Thanh Tung.</p> <p> <b>Records from Vietnam. An Giang</b> (Tinh Bien) (Nguyen & Nguyen 2015).</p> <p> <b>Distribution.</b> Only known from Vietnam.</p> <p> <b>Vietnamese name.</b> Giun núi Nhọn</p>Published as part of <i>Nguyen, Tung T., Nguyen, Anh D., Tran, Binh T. T. & Blakemore, Robert J., 2016, A comprehensive checklist of earthworm species and subspecies from Vietnam (Annelida: Clitellata: Oligochaeta: Almidae, Eudrilidae, Glossoscolecidae, Lumbricidae, Megascolecidae, Moniligastridae, Ocnerodrilidae, Octochaetidae), pp. 1-92 in Zootaxa 4140 (1)</i> on page 40, DOI: 10.11646/zootaxa.4140.1.1, <a href="http://zenodo.org/record/256507">http://zenodo.org/record/256507</a>
Metaphire dorsomultitheca Nguyen & Nguyen 2015
No full text<i>Metaphire dorsomultitheca</i> Nguyen & Nguyen, 2015 <p>(Figure 11, Table 3)</p> <p> <i>Metaphire dorsomultitheca</i> Nguyen <i>et al.</i> 2015: 465, fig. 2; Nguyen <i>et al.</i> 2016: 56, 2021c: 105.</p> <p> <i>Pheretima</i> sp. 15 <i>–</i> Nguyen 2013: 87, 2014: 112.</p> <p> <b>Type locality.</b> Vietnam (An Giang: Sam mountain) (Nguyen <i>et al.</i> 2015)</p> <p> <b>Type material.</b> Laboratory of Zoology, Department of Biology, Can Tho University (EW.025.h01, EW.025. p02), Vietnam.</p> <p> <b>Diagnosis.</b> Body cylindrical, small-medium size, length 76–111 mm, diameter 2.9–3.6 mm, segments 88–120. Prostomium epilobous. First dorsal pore at 12/13. Spermathecal pores numerous in dorsal intersegments 7/8/9, polythecate. Male pores located inside copulatory pouches in xviii. Genital markings invisible outside, but two pairs opened on the front and back walls of the copulatory pouches, respectively. Septum 10/11 present only ventrally. Intestinal caeca simple. Holandric, testis sacs separated. Accessory glands coelomic, strongly covered by muscularwalled bursae in 17/18 and 18/19.</p> <p> <b>Habitat.</b> The species was usually found in the depth of 0–5 cm in the soils under small trees and shrubs on mountain peaks (Nguyen <i>et al.</i> 2015).</p> <p> <b>Distribution.</b> Known only in Vietnam (An Giang: Sam, Cam, and Co To mountains) (Nguyen <i>et al.</i> 2015) (Fig. 3).</p> <p> <b>Remarks.</b> There are no significant differences between individuals except the number of spermathecae. The K2P intraspecific genetic distance was 0.7%±0.3%. The genetic distance between <i>M. dorsomultitheca</i> and other <i>Metaphire</i> species was from 14.9%±1.6% (with <i>M. bahli</i> (I)) to 21.8%±2.0 (with <i>M. grandiverticulata</i>) (Table 4).</p>Published as part of <i>Nguyen, Tung T., Lam, Dang H. & Nguyen, Anh D., 2023, A revision of the Metaphire peguana species-group (Oligochaeta: Megascolecidae) from Vietnam, pp. 113-135 in Zootaxa 5255 (1)</i> on pages 129-130, DOI: 10.11646/zootaxa.5255.1.15, <a href="http://zenodo.org/record/7744555">http://zenodo.org/record/7744555</a>
Polypheretima mekongmontis Nguyen, Tran & Nguyen 2014
No full text<i>Polypheretima mekongmontis</i> Nguyen, Tran & Nguyen, 2014 <p> <i>Polypheretima mekongmontis</i> Nguyen, Tran & Nguyen, 2014: 118, Fig. 6.</p> <p> <b>Type locality.</b> Vietnam (Kien Giang: Hon Dat).</p> <p> <b>Type material.</b> CTU (EW.028), Vietnam.</p> <p> <b>Examined material.</b> 1 C (<b>CTU-EW.028.h01</b>) and 10 C (<b>CTU-EW.028.p02</b>) Kien Giang Prov., Hon Dat District, Hon Me Mt. (10º06' 12.3N; 104º52' 43.5E), mango garden, 13/11/2010, coll. Nguyen Thanh Tung.</p> <p> <b>Records from Vietnam. Kien Giang</b> (Hon Dat, Hon Tre Isl.) (Nguyen <i>et al.</i> 2014).</p> <p> <b>Distribution.</b> Only known from Vietnam.</p> <p> <b>Vietnamese name.</b> Trùn núi mêkông.</p>Published as part of <i>Nguyen, Tung T., Nguyen, Anh D., Tran, Binh T. T. & Blakemore, Robert J., 2016, A comprehensive checklist of earthworm species and subspecies from Vietnam (Annelida: Clitellata: Oligochaeta: Almidae, Eudrilidae, Glossoscolecidae, Lumbricidae, Megascolecidae, Moniligastridae, Ocnerodrilidae, Octochaetidae), pp. 1-92 in Zootaxa 4140 (1)</i> on page 74, DOI: 10.11646/zootaxa.4140.1.1, <a href="http://zenodo.org/record/256507">http://zenodo.org/record/256507</a>
Okinawepipona Nguyen & Nguyen & Bozdoğan 2018
No full textKey to all known species of the genus <i>Okinawepipona</i> <p>The characters used are applicable to both sexes unless the sex is specified.</p> <p> 1. Body covered with very coarse punctures; mesoscutum, scutellum and metanotum strongly convex dorsally; propodeum with dorsal part strongly rugose and convex, dorsal and posterior surfaces separated by sharp edge; metasomal tergum I in dorsal view about twice as wide as long.......................................... <i>O. curcipunctura</i> Nguyen & Xu (2014).</p> <p>- Body covered with less coarse punctures; mesoscutum, scutellum and metanotum slightly convex; dorsal surface of propodeum not convex, dorsal and posterior surfaces separated by blunt edge; tergum I in dorsal view slightly less than twice as wide as long.......................................................................................... 2</p> <p> 2. Propodeum rugose; tergum I in lateral view strongly convex anteriorly................................ <i>O. yty</i>, <b>sp. nov</b>.</p> <p>- Propodeum smooth or with striae; tergum I in lateral view slightly convex anteriorly................................ 3</p> <p> 3. Clypeus in lateral view weakly convex and then straight dorsally, apical margin shallowly emarginated medially, apical teeth blunt; posterior surface of propodeum shiny, almost smooth in lateral area and with weak and short oblique striae along median carina; scutellum and metanotum black; metasomal terga IV-VI entirely black............ <i>O. nigra</i> Nguyen & Xu (2014).</p> <p> - Clypeus in lateral view moderately convex, apical margin deeply emarginated medially, apical teeth sharp; posterior surface of propodeum with striae; scutellum and metanotum largely yellow to orange-yellow; metasomal terga IV-VI black, each with yellow to orange-yellow apical band........................................... <i>O. kogimai</i> (Giordani Soika, 1986)</p>Published as part of <i>Nguyen, Lien Thi Phuong, Nguyen, Ha Thi Thu & Bozdoğan, Hakan, 2018, Contribution to the genus Okinawepipona Yamane (Hymenoptera: Vespidae: Eumeninae) from Vietnam, with description of a new species, pp. 592-596 in Zootaxa 4462 (4)</i> on pages 595-596, DOI: 10.11646/zootaxa.4462.4.10, <a href="http://zenodo.org/record/1441797">http://zenodo.org/record/1441797</a>
Okinawepipona Nguyen & Nguyen & Bozdoğan 2018
No full textKey to all known species of the genus <i>Okinawepipona</i> <p>The characters used are applicable to both sexes unless the sex is specified.</p> <p> 1. Body covered with very coarse punctures; mesoscutum, scutellum and metanotum strongly convex dorsally; propodeum with dorsal part strongly rugose and convex, dorsal and posterior surfaces separated by sharp edge; metasomal tergum I in dorsal view about twice as wide as long.......................................... <i>O. curcipunctura</i> Nguyen & Xu (2014).</p> <p>- Body covered with less coarse punctures; mesoscutum, scutellum and metanotum slightly convex; dorsal surface of propodeum not convex, dorsal and posterior surfaces separated by blunt edge; tergum I in dorsal view slightly less than twice as wide as long.......................................................................................... 2</p> <p> 2. Propodeum rugose; tergum I in lateral view strongly convex anteriorly................................ <i>O. yty</i>, <b>sp. nov</b>.</p> <p>- Propodeum smooth or with striae; tergum I in lateral view slightly convex anteriorly................................ 3</p> <p> 3. Clypeus in lateral view weakly convex and then straight dorsally, apical margin shallowly emarginated medially, apical teeth blunt; posterior surface of propodeum shiny, almost smooth in lateral area and with weak and short oblique striae along median carina; scutellum and metanotum black; metasomal terga IV-VI entirely black............ <i>O. nigra</i> Nguyen & Xu (2014).</p> <p> - Clypeus in lateral view moderately convex, apical margin deeply emarginated medially, apical teeth sharp; posterior surface of propodeum with striae; scutellum and metanotum largely yellow to orange-yellow; metasomal terga IV-VI black, each with yellow to orange-yellow apical band........................................... <i>O. kogimai</i> (Giordani Soika, 1986)</p>Published as part of <i>Nguyen, Lien Thi Phuong, Nguyen, Ha Thi Thu & Bozdoğan, Hakan, 2018, Contribution to the genus Okinawepipona Yamane (Hymenoptera: Vespidae: Eumeninae) from Vietnam, with description of a new species, pp. 592-596 in Zootaxa 4462 (4)</i> on pages 595-596, DOI: 10.11646/zootaxa.4462.4.10, <a href="http://zenodo.org/record/1441797">http://zenodo.org/record/1441797</a>
Metaphire kiengiangensis Nguyen & Trinh 2015
No full text<i>Metaphire kiengiangensis</i> Nguyen & Trinh, 2015 <p>(Figure 12, Table 3)</p> <p> <i>Metaphire kiengiangensis</i> Nguyen <i>et al.</i> 2015: 461, fig. 1; Nguyen <i>et al.</i> 2016: 60, 2017b: 898, 2021c: 105.</p> <p> <i>Pheretima</i> sp.9 – Nguyen 2013: 75, 2014: 111.</p> <p> <b>Type locality.</b> Vietnam (Kien Giang: Lai Son island) (Nguyen <i>et al.</i> 2015).</p> <p> <b>Type material.</b> Laboratory of Zoology, Department of Biology, Can Tho University (EW.019.h01, EW.019. p02, EW.019.p03, EW.019.p04), Vietnam.</p> <p> <b>Diagnosis.</b> Body cylindrical, large-medium size, length 176–280 mm, diameter 6.3–8.1 mm, segments 83–143. Prostomium epilobous. First dorsal pore at 12/13. Spermathecal pores numerous in ventrolateral intersegments 6/7/8/9, polythecate. Male pores located inside copulatory pouches in xviii. Two pairs of slit-shaped genital markings in 17/18 and 18/19. Male pores located inside copulatory pouches in xviii. Septum 10/11 present only ventrally. Intestinal caeca simple. Holandric, testis sacs separated. Accessory glands coelomic, strongly covered by muscularwalled bursae in 17/18 and 18/19.</p> <p> <b>Habitat.</b> The species was extremely abundant in a leaf-litter layer under perennial mango gardens of mountainous areas; They excreted their feces to create columns emerging from the soil surface (Nguyen <i>et al.</i> 2015).</p> <p> <b>Distribution.</b> Known only in Vietnam (Kien Giang: Hon Dat, Hon Me mountains, and Lai Son island) (Nguyen <i>et al.</i> 2015, 2017b) (Fig. 3).</p> <p> <b>Remarks.</b> There is a minor difference in spermathecae between specimens collected from the mainland and from islands (ovoid-shaped spermathecae with thin duct vs. cylindrical-shaped with stout duct) (Nguyen <i>et al.</i> 2015 <b>).</b></p> <p> The K2P intraspecific genetic distance was 0.7%±0.3%. The genetic distance between <i>M. kiengiangensis</i> and other <i>Metaphire</i> species was from 16.5%±1.8% (with <i>M. bahli</i> (II)) to 21.6%±2.0% (with <i>M. grandiverticulata</i>) (Table 4).</p>Published as part of <i>Nguyen, Tung T., Lam, Dang H. & Nguyen, Anh D., 2023, A revision of the Metaphire peguana species-group (Oligochaeta: Megascolecidae) from Vietnam, pp. 113-135 in Zootaxa 5255 (1)</i> on pages 130-131, DOI: 10.11646/zootaxa.5255.1.15, <a href="http://zenodo.org/record/7744555">http://zenodo.org/record/7744555</a>
Okinawepipona yty , Nguyen 2018
No full text<i>Okinawepipona yty</i> Nguyen, 2018 <p>Figs. 1–7</p> <p> <i>Okinawepipona yty</i> Nguyen, 2018: 592, 596 (key), female – “Y Ty, Bat Xat, Lao Cai ” (IEBR).</p> <p> The male specimens we examined are from the type locality and agree well with the description by Nguyen <i>et al</i>. (2018). As described below, the male is similar to the female both in structure and coloration except for some few characters.</p> <p> <b>Material examined.</b> VIETNAM: <b>Lao Cai:</b> 12 ♀, 16 ♁, Y Ty, Bat Xat, 22°36′29.5″N 103°37′29.6″E, alt. 1869 m, 6 May 2019, Nguyen Quang Cuong leg.; 3 ♁, Y Ty, Bat Xat, 22°37′14.5″N 103°37′25.5″E, alt. 1850 m, 15 July 2023, Nguyen Thi Phuong Lien, Nguyen Quang Cuong leg. [IEBR]</p> <p> <b>Description.</b> <i>Male</i> (Fig. 4) [female characters in square brackets]. Body length 11–12 mm; forewing length 11–12 mm. Head in frontal view subcircular, wider than high, about 1.2× as wide as high [1.1× as wide as high] (Fig. 1). Vertex without cephalic foveae [with cephalic foveae small, bearing dense pubescence, situated very close to each other, almost touching each other] (Fig. 2). Distance from posterior ocellus to apical margin of vertex nearly 1.6× distance from posterior ocellus to inner compound eye margin [more than 1.7× distance from posterior ocellus to inner compound eye margin] (Fig. 2). Gena slightly narrower than compound eye, in lateral view about 0.9× as wide as compound eye [much narrower than compound eye, in lateral view about 0.7× as wide as compound eye]. Occipital carina complete, present along entire length of gena, but dorsally somewhat weak. Inner compound eye margins strongly converging ventrally; in frontal view about 1.8× further apart from each other at vertex than at clypeus [1.3× further apart from each other at vertex than at clypeus]. Disc of clypeus in lateral view weakly convex at basal half, then straight to near apical margin; in frontal view 1.3× higher than wide [about as wide as high] (Fig. 1), with basal margin almost straight [slightly convex medially] and distinctly separated from antennal sockets; apical margin deeply emarginate medially, forming very sharp tooth on each lateral side [forming sharp tooth on each lateral side] (Fig. 1), without carina [with two faint carinae running from tooth at apical point to base direction]; width of emargination slightly greater than 1/3 width of clypeus between inner compound eye margins [width of emargination slightly less than 1/3 width of clypeus between inner compound eye margins]. Mandible with prominent teeth, second and third teeth with inner side almost straight [second and third teeth with inner side produced with round margin], fourth tooth pointed apically. Antennal scape about 3.3× as long as its maximum width [about 3.7× as long as its maximum width]; flagellomere I about 1.8× as long as wide [about 1.5× as long as wide], flagellomeres II and III slightly longer than wide [flagellomere III as wide as long], flagellomere IV as wide as long, flagellomeres V–IX wider than long, terminal flagellomere small, slightly curved, 3.5× as long as its basal width, reaching to near base of flagellomere IX when folded [terminal flagellomere bullet-shaped, as long as its basal width] (Fig. 3).</p> <p>Mesosoma, metasoma (except tergum VII and sternum VII), and body sculpture as same as in female except clypeus with dense, small, deep punctures [clypeus with dense, large, flat-bottomed punctures, each bearing silver bristle, punctures at center larger than at sides, space between punctures larger than puncture diameter]. Tergum VII and sternum VII with some small and sparse punctures come between minute punctures.</p> <p> <i>Color</i>. Black; similar to female except clypeus almost entirely yellow [large spots on upper lateral corner and a large spot on lower middle of clypeus]; head black [narrow band along inner compound eye margin extending from bottom of frons nearly to ocular sinus, large spot between antennal sockets].</p> <p> <i>Genitalia</i>. As in Figs. 5–7. Parameral spine lacking setae. Volsella flattened, spatulate, wide on inner aspect, and without setae at top (Fig. 5). Digitus knife-shaped, almost parallel at one-third from base, then gradually narrowing to top, with medium long setae on outer margin (Fig. 5). Penis valves of aedeagus long, about 1.6× as long as basal apodeme, in ventral view proximal part produced laterally into a round lobe laterally with blunt apex in inner margin apically (Fig. 6); in profile apical part produced into a round projection (Fig. 7); dorsal rod of aedeagus shorter than basal apodeme apically (Fig. 7).</p> <p> <b>Distribution.</b> Vietnam (Lao Cai).</p>Published as part of <i>Nguyen, Hieu Van, Nguyen, Manh Thanh & Nguyen, Lien Thi Phuong, 2024, Discovery of the male of Okinawepipona yty Nguyen, 2018 (Hymenoptera: Vespidae: Eumeninae) from Vietnam, pp. 79-84 in Zootaxa 5399 (1)</i> on page 80, DOI: 10.11646/zootaxa.5399.1.6, <a href="http://zenodo.org/record/10494478">http://zenodo.org/record/10494478</a>
An Optimal Degree Distribution Design and a Conditional Random Integer Generator For The Systematic Luby Transform Coded Wireless Internet
No full textRecently, the authors of this paper proposed Systematic Luby Transform (SLT) codes and their soft decoding using the classic loglikelihood message passing algorithm for transmission over hostile Wireless Internet channels, where the transmitted data is affected by both packet loss events and random Gaussian noise. This scheme is further improved here with the aid of a new degree distribution and a novel random integer generator, which are termed as the truncated degree distribution and the conditional random integer generator. The SLT code using the new design is capable of achieving BER ≤ 10-5 at low Eb/N0 values. For example, the SLT(1200,3600) code attains BER ≤ 10-5 in excess of an Eb/N0 value of 1.5dB for transmission over the AWGN channel and above 3.5dB over the uncorrelated Rayleigh channel if additionally a packet erasure probability Pe of 0.1 is inflicted, an Eb/N0 value above 2dB is required for transmission over the AWGN channel and in excess of 4dB over the uncorrelated Rayleigh channel, when using a maximum of Iter = 20 iterations and Quadrature Phase-Shift Keying
HARQ Aided Systematic LT Coding for Amplify-Forward and Decode-Forward Cooperation
No full textSystematic Luby Transform (SLT) codes constitute rateless codes, which are capable of adaptively adjusting their code rate depending on the channel quality without explicit channel state information (CSI) at the transmitters. SLTs are also suitable for space-time collaboration aided relay networks. In this paper, an iterative decoding aided SLT scheme is combined with 16-QAM transmission in a wireless relay aided network. The Bit Error Ratio (BER) results and Extrinsic Information Transfer (EXIT) charts are provided to evaluate the performance of the proposed scheme. The simulation results show that the proposed scheme using amplify-and-forward (AF) relaying achieves a 2.5dB gain at a BER of 10?5 , while the attainable improvement is nearly 6dB for decode-and-forward (DF) relaying, compared to the non-cooperative scheme, where the 16-QAM and the SLT decoder work independently. Moreover, the AF relaying aided SLT coded 16-QAM scheme is more beneficial, when the relay station is close to the source. By contrast, the DF relaying performs best near the mid-point between the source and destination. In addition, a modified Hybrid Automatic-Repeat-reQuest (HARQ) protocol using incremental redundancy is applied along with the SLT coded 16-QAM scheme to enhance the achievable throughput and energy efficiency of cooperative networks. This arrangement reduces the total transmit power by about 8%, compared to the classic HARQ scheme
Metaphire nhuongi Nguyen 2016
No full text<i>Metaphire nhuongi</i> Nguyen, 2016 <p>(Figure 13, Table 3)</p> <p> <i>Metaphire nhuongi</i> Nguyen 2016: 442, fig. 2; Nguyen <i>et al.</i> 2021c: 105.</p> <p> <i>Pheretima</i> sp. 10 – Nguyen <i>et al.</i> 2012: 146.</p> <p> <i>Pheretima</i> sp. 14 – Nguyen 2013: 85, 2014: 112.</p> <p> <b>Type locality.</b> Vietnam (An Giang: Co To mountain) (Nguyen 2016)</p> <p> <b>Type material.</b> Laboratory of Zoology, Department of Biology, Can Tho University (EW.024.h01, EW.024. p02, EW.024.p03), Vietnam.</p> <p> <b>Diagnosis.</b> Body cylindrical, large-medium size, length 213–339 mm, diameter 8.9–9.5 mm, segments 120–148. Prostomium epilobous. First dorsal pore at 12/13. Four pairs of spermathecal pores in ventrolateral intersegments 5/6/7/8/9, bithecate. Two pairs of ellipsoid genital markings in intersegments 17/18 and 18/19, each with a small opening at the center. Male pores located inside copulatory pouches in xviii. Septum 10/11 present only ventrally. Intestinal caeca simple. Holandric, testis sacs separated. Accessory glands coelomic, strongly covered by muscularwalled bursae in 17/18 and 18/19.</p> <p> <b>Habitat.</b> The species found in the depth of 15–20 cm in soils of natural forests or in perennial mango gardens in a mountain foot. They excreted their feces to create columns emerging from the soil surface (Nguyen 2016).</p> <p> <b>Distribution.</b> Only recorded in Vietnam (An Giang: Co To, Phu Cuong, and Ta Pa mountains) (Fig. 3).</p> <p> <b>Remarks.</b> There were no significant morphological differences between individual found.</p> <p> The K2P intraspecific genetic distance was 1.3%±0.3%. The genetic distance between <i>M. nhuongi</i> and other <i>Metaphire</i> species was from 17.6%±1.8% (with <i>M. dorsomultitheca</i>) to 22.9%±2.1% (with <i>M. grandiverticulata</i>) (Table 4).</p> <p> <b> Key to species of <i>Metaphire peguana</i> species-group</b> </p> <p>1. – Bithecate, one pair of spermathecae per segment.......................................................... 2 – Polythecate, numerous spermathecae per segment......................................................... 6</p> <p> 2. – Four pairs of spermathecal pores in 5/6/7/8/9...................................................... <i>M. nhuongi</i> – Three pairs of spermathecal pores in 6/7/8/9............................................................... 3</p> <p> 3. – Genital markings paired in vi–ix............................................................. <i>M. doiphamon</i> – Genital markings absent in the spermathecal region......................................................... 4</p> <p> 4. <i>–</i> Spermathecal pores located ventrally. Ventral distance between spermathecal pores 0.15–0.29 body circumference. <i>M. bahli</i> – Spermathecal located more laterally. Ventral distance between spermathecal pores 0.33–0.50 body circumference....... 5</p> <p> 5. – The openings of genital markings small, slit-shaped or ellipsoid-shaped, in post-setal and pre-setal positions in xvii and xix, respectively....................................................................... <i>M. peguana laisonensis</i> – The openings of genital markings disc-shaped, in 17/18 and 18/19, expanding to reach two setal rings. <i>M. peguana peguana</i></p> <p> 6. – Spermathecal pores located in ventral intersegments 6/7/8/9. Genital markings paired in 17/18 and 18/ 19 <i>M.</i> kiengiangensis – Spermathecal pores located in dorsal intersegments 7/8/9. Genital markings opening on the walls of the copulatory pouches <i>M. dorsomultitheca</i></p>Published as part of <i>Nguyen, Tung T., Lam, Dang H. & Nguyen, Anh D., 2023, A revision of the Metaphire peguana species-group (Oligochaeta: Megascolecidae) from Vietnam, pp. 113-135 in Zootaxa 5255 (1)</i> on pages 131-132, DOI: 10.11646/zootaxa.5255.1.15, <a href="http://zenodo.org/record/7744555">http://zenodo.org/record/7744555</a>
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