77,284 research outputs found
Metaphire peguana subsp. laisonensis Nguyen & Nguyen 2017
No full textMetaphire peguana laisonensis Nguyen & Nguyen, 2017 (Figures 5–6, Table 3) Metaphire peguana laisonensis Nguyen et al. 2017b: 900, fig. 12; Nguyen et al. 2021c: 105. Pheretima sp. 11 – Nguyen 2013: 78, 2014: 111. Type locality. Viet Nam (Kien Giang: Lai Son island) (Nguyen et al. 2017b) Type material. Laboratory of Zoology, Department of Biology, Can Tho University (EW.087.01), Vietnam. Diagnosis. Body cylindrical, length 62–114 mm, diameter 2.7–4.4 mm, segments 62–111. Prostomium epilobous. First dorsal pore at 12/13. Three pairs of spermathecal pores in lateral intersegments 6/7/8/9, bithecate. Two pairs of ellipsoid genital markings in xvii and xix, each genital marking with a small opening at the center. Male pores located inside copulatory pouches in xviii. Septum 10/11 only present ventrally. Intestinal caeca simple. Holandric, testis sacs separated. Accessory glands coelomic, strongly covered by muscular-walled bursae in 17/18 and 18/19. Habitat. The subspecies were found numerously in leaf litters in natural forest (Nguyen 2014; Nguyen et al. 2017b). Distribution. Only known in Vietnam (Kien Giang: Lai Son island; An Giang: Cam mountain) (Nguyen 2014; Nguyen et al. 2017b) (Fig. 3). Remarks. Nguyen et al. (2017b) described a new subspecies, M. peguana laisonensis found in Lai Son Island (Kien Giang Province, Vietnam) based on the location of genital markings, spermathecal pores, and the attachment of the spermathecal diverticulum (Fig. 5) (Nguyen et al. 2017b). Previously, Nguyen (2013) identified samples collected from the Cam Mountain (An Giang Province) as M. bahli (Fig. 6), and observed that these samples have intermediate characters between M. bahli and M. peguana, for example, slit-shaped genital markings in xvii and xix, and the much laterally wider spermathecal pores (Nguyen 2013). The re-examination confirmed that specimens were definitely M. peguana laisonensis. There was a minor difference in the ending of the spermathecal diverticulum between the type specimens from Lai Son Island and samples collected from the Cam Mountain (An Giang Province) (attached directly to the base of the ampulla duct vs. attached to the middle of the ampulla duct). Genetic distance of M. peguana laisonensis in Cam Mountain and M. peguana peguana was 12.2%±1.4%, and that distance with other Metaphire species was 12.9%±1.5% (with M. bahli (type I)) to 22.3%±2.1% (with M. grandiverticulata) (Table 4). Notes: Intraspecific distances are in bold; na = no dataPublished as part of 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) on pages 123-125, DOI: 10.11646/zootaxa.5255.1.15, http://zenodo.org/record/774455
Painting Time: A Meditation on Fr Martin Lam Nguyen C.S.C.’s "Moments"
No full textThis is the final version. Available from Beatrice M. Haggerty GalleryPublished on the occasion of the exhibition Martin
Lan, Nguyen, C.S.C.: Moments, on view at the Beatrice
M. Haggerty GalJery at the University of Dallas from
October 5 to November 5, 2017.lnstitute for Scholarship in the Liberal Arts, College
of Arts and Letters, University of Notre Dam
Polypheretima cattienensis Nguyen, Tran & Nguyen 2015
No full textPolypheretima cattienensis Nguyen, Tran & Nguyen, 2015 Polypheretima cattienensis Nguyen, Tran & Nguyen, 2015a: 594, Fig. 1. Type locality. Vietnam (Dong Nai: Cat Tien). Type material. CTU (EW.040), Vietnam. Examined material. 1 C (CTU-EW.040.h01) and 4 C (CTU-EW.040.p01) natural forest (11º25' 30.9N; 107º25' 42.2E), 122 m asl, Cat Tien National Park, Tan Phu District, Dong Nai Province, Vietnam, 13/10/2013, coll. Le Van Nhan. Records from Vietnam. Dong Nai (Cat Tien NP) (Nguyen et al. 2015a). Distribution. Only known from Vietnam. Vietnamese name. Trùn cát tiên.Published as part of 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) on pages 72-73, DOI: 10.11646/zootaxa.4140.1.1, http://zenodo.org/record/25650
Polypheretima militium Nguyen, Tran & Nguyen 2015
No full textPolypheretima militium Nguyen, Tran & Nguyen, 2015 Polypheretima militium Nguyen, Tran & Nguyen, 2015a: 596, Fig. 2. Type locality. Vietnam (Dong Nai: Vinh Cuu). Type material. CTU (EW.041), Vietnam. Examined material. 1 C (CTU-EW.041.h01) and 4 C (CTU-EW.041.p01) natural forest (11º25' 30.9N; 107º25' 42.2E), 122 m asl, Cat Tien National Park, Tan Phu Distr., Dong Nai Prov., Vietnam, 13/10/2013, coll. Le Van Nhan. Records from Vietnam. Dong Nai (Vinh Cuu) (Nguyen et al. 2015). Distribution. Only known from Vietnam. Vietnamese name. Trùn trại lính.Published as part of 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) on page 75, DOI: 10.11646/zootaxa.4140.1.1, http://zenodo.org/record/25650
Polypheretima cordata Nguyen, Tran & Nguyen 2015
No full textPolypheretima cordata Nguyen, Tran & Nguyen, 2015 Polypheretima cordata Nguyen, Tran & Nguyen, 2015a: 597, Fig. 3. Type locality. Vietnam (Dong Nai: Vinh Cuu). Type material. CTU (CTU-EW.042), Vietnam. Examined material. 1 C (CTU-EW.042.h01) and 5 C (CTU-EW.042.p01) natural forest (11º06' 89.5N; 107º03' 10.3E), about 100 m asl, Ma Da commune, Vinh Cuu Distr., Dong Nai Prov., 13/10/2013; coll. Duong Chi Trong; 4 C (CTU-EW042.k01) natural forest (11º25' 42.0N; 107º25' 38.1E), 122 m asl, Cat Tien National Park, Tan Phu Distr., Dong Nai Prov., Vietnam, 13/10/2013, coll. Le Van Nhan. Records from Vietnam. Dong Nai (Vinh Cuu; Tan Phu) (Nguyen et al. 2015a). Distribution. Only known from Vietnam. Vietnamese name. Trùn ampun hình tim.Published as part of 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) on page 73, DOI: 10.11646/zootaxa.4140.1.1, http://zenodo.org/record/25650
Some characterizations of magnetic Sobolev spaces
No full textThe aim of this note is to survey recent results contained in Nguyen H-M, Squassina M. [On anisotropic Sobolev spaces. Commun Contemp Math, to appear. DOI:10.1142/S0219199718500177]; Nguyen H-M, Pinamonti A, Squassina M, et al. [New characterizations of magnetic Sobolev spaces. Adv Nonlinear Anal. 2018;7(2):227–245]; Pinamonti A, Squassina M, Vecchi E. [Magnetic BV functions and the Bourgain-Brezis-Mironescu formula. Adv Calc Var, to appear. DOI:10.1515/acv-2017-0019]; Pinamonti A, Squassina M, Vecchi E. [The Maz'ya-Shaposhnikova limit in the magnetic setting. J Math Anal Appl. 2017;449:1152–1159] and Squassina M, Volzone B. [Bourgain-Brezis-Mironescu formula for magnetic operators. C R Math Acad Sci Paris. 2016;354:825–831], where the authors extended to the magnetic setting several characterizations of Sobolev and BV functions
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>
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>
Eumenes congnatus Nguyen, sp. nov.
No full textEumenes congnatus Nguyen, sp. nov. (Figs 7–12) Material examined. Holotype, ♀, “ VIETNAM, Tuyen Quang, Bac Vang Ranger Station, Na Hang Natural Reserve, Na Hang, 22 ° 20 ' 52.6 "N 105 ° 25 ' 49 "E, 10.VI. 2015, LTP Nguyen, DD nguyen & LX Truong [IEBR]. Paratypes: VIETNAM: Ha Giang: 1 ♂, Tung Ba, Vi Xuyen, 3.vii. 2013, TV Nguyen; Bac Kan: 1 ♀, Lang San, Na Ri, 21 0 15 ’N, 106 0 06’E, 270 m, 3-4.viii. 2012, J Kojima, H Nugroho & IED-c; Thai Nguyen: 1 ♂, Xom O, Yen Lac, Phu Luong, 2.vi. 2014, LTP Nguyen; Son La: Lang Son: 1 ♀, Cai Kinh, xi. 2015, LTP Nguyen, DD Nguyen & NT Tran; Son La: 1 ♀, Nam Pam, Muong La, 660 m, 25.vii. 2009, LTP Nguyen, PH Pham & J Kojima; Vinh Phuc: 1 ♂, Tam Dao NP, 21 0 26 ’N, 105 0 37 ’E, 400 m, 20.viii. 2005, J Kojima; Ha Noi: 1 ♂, Suoi Mo, Yen Bai, Ba Vi, 01.vi. 2001, LTP Nguyen Hai Duong: 1 ♀, Hoang Hoa Tham, Chi Linh, 19.viii. 2012, O.T. Nguyen [IEBR]; Lang Son: 3 ♂, Cai Kinh, Huu Lung, 22 ° 39 ' 42.9 "N, 106 ° 15 ' 36 "E, 28 m, 24.xi. 2015, LTP Nguyen, DD Nguyen, NT Tran; Thanh Hoa: 1 ♂, Xuan Lien NR, Hon Can, Van Xuan, Thuong Xuan, 19052 ’ 27.5 ”N, 105014 ’ 20.8 ”E, 106 m, LTP Nguyen; Nguyen; Nghe An: 1 ♀, Pu Mat NP, 26.vii. 2004, LTP Nguyen [VNMN]. Description. Female. Body length 11–12 mm (holotype 11.5 mm); fore wing length 10–11 mm (holotype 10.5 mm). Structure as in Eumenes longus sp. nov., but differs as follows. Head in frontal view slightly wider than high (Fig. 7). Distance between inner eye margins (frontal view) at vertex twice more than at clypeus. Clypeus nearly 1.8 × as highas wide (Fig. 7). Metasomal segment 1 in dorsal view gradually widened from base to apex (Fig. 9), tergum and sternum fused, suture between them distinct almost throughout basal part. T 2 in lateral view as long as wide (Fig. 8). Body with slightly less coarse punctures than in E. longus. Color. Black, with following parts yellow: narrow band along inner eye margin extending from bottom to near ocular sinus, spot between antennal sockets, short line at vertex behind eye, short line at basal margin of dorsal pronotum, apical part of parategula and apical margin of T 1. Legs black. Propodeal valvulae dark brown. Wings dark brown, strongly infuscate, veins dark brown. Male. Body length 10–11 mm; fore wing length 9–10 mm. Structure as in female and male of E. longus but clypeus proportionally longer, in frontal view 2.3 × as long as wide, with sharper teeth (Fig. 10). F 11 propotionaly shorter than in E. longus (Fig. 11). Color as in female. Distribution. Northern Vietnam: Tuyen Quang, Ha Giang, Bac Kan, Thai Nguyen, Son La, Vinh Phuc, Ha Noi, Thanh Hoa, Nghe An. Etymology. The specific name refers to the similarity with its congener E. longus. Remarks. This species is similar to E. longus, but can be easily distinguished from the latter by having T 1 gradually widened from base to apex (gradually widened basally and then parallel in E. longus), T 2 in lateral view as long as wide (1.1 × as long as wide in E. longus), and male clypeus with sharper teeth. This species can be distinguished from two Papuan species by having clypeus nearly 1.8 × as high as wide (less than 1.3 × as high as wide in two Papuan species).Published as part of Nguyen, Lien Thi Phuong, 2016, Two new species of the genus Eumenes Latreille, 1802 (Hymenoptera: Vespidae, Eumeninae) from Vietnam, pp. 583-588 in Zootaxa 4093 (4) on pages 585-587, DOI: 10.11646/zootaxa.4093.4.11, http://zenodo.org/record/27097
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>
- …
