78,025 research outputs found
Mursia arabica Kumar, Kumar & Galil, 2013, n. sp.
No full textMursia arabica n. sp. (Figs 7 c, d, 8 a–c, 9 a–d) Mursia bicristimana —Spiridonov & Apel 2007: 2859, figs. 5, 7a (part), not Mursia bicristimana Alcock & Anderson, 1894). Material examined. Holotype. Gulf of Aden, “ John Murray” Expedition; stn 35, 13° 14 ' 24 "N 46 ° 14 ' 12 "E, 16 Nov. 1933, 441 m, 1 ♂ (CW 59.3 mm) (NHM 2013.289).— Paratypes. stn 194, 13° 16 '00"N 46 ° 20 ' 24 "E, 7 May 1934, 220 m, 6 ♂ (CW 34.7–80.3 mm), 2 ♀ one damaged (CW 54.3, 56.4 mm), 1 pre-adult (CW 33.6 mm) (NHM 2013.290 - 298).—RV Meteor cruise 5, stn 267, 13° 27.59 ’N, 47 ° 20.59 ’E – 13 ° 27.99 ’N, 47 ° 21.89 ’E, 13 Mar. 1987, 359– 362 m, 3 ♂ (CW 26.6–65.6 mm), 6 ♀ (CW 34.2–56.2 mm) (SMF 29499), 104 pre-adults (SMF 29500). — Arabian Sea. RV Vitiaz Cruise 17, stn 2825, 10° 10.59 ’– 10 ° 18.99 ’N, 56 °08.89’– 56 °06.79’E, depth 395–420 m, 1 ♂ (CW 66.3 mm), 6 ♀ (CW 46.3–51.1 mm) (ZMMU Ma 5353). Description. Carapace transversely subovate, convex, regions poorly marked, 1.3 wide as long (excluding lateral spines). Dorsal surface covered with uniformly-sized closely-spaced rounded granules. Conic, granular protuberances, diminishing in size posteriorly, disposed in 7 radial rows on dorsal surface of carapace. Mesogastric region highest part of carapace. Gastric, cardiac, intestinal regions separated from branchial regions by shallow, sinuous longitudinal grooves. Anterolateral margin arcuate, crenulate, with 11–12 granular triangular denticles. Lateral spine slim, acuminate, slightly curved forward, upward, about one tenth carapace width, minutely granular on upper surface. Posterolateral margins closely beaded, undulate, sharply convergent. Posterior margin beaded, lateral teeth broadly triangular, dorsoventrally flattened, median lobe obsolescent. Front as wide as orbit, setose. Frontal margin projecting beyond orbits, trilobate, median lobe on lower plane than lateral lobes, triangular, tip upcurved; lateral lobes rounded, separated from supraorbital margin by shallow concavity. Antennules obliquely folded. Supraorbital margin with single fissured, closely beaded, with long plumose setae. Inner orbital tooth ogival, separated from outer orbital margin by U-shaped cleft, by orbital hiatus from front. Antennae small, slender, basal segment article subrectangular, lodged in orbital hiatus. Eyes retractable, eyestalk short, granular, setose. Buccal frame rhomboidal, narrowing anteriorly. Third maxilliped exopod thickly fringed with plumose setae; ischium endopod bears granular row distally that forms stridulating organ when rasped against milled ridge on dactylus of chela. Subhepatic region tomentose. Sternum granular. Male abdomen with prominent trilobate carina on second somite, rounded lateral lobes separated from lower, wider median lobe by deep grooves; somites 3–5 fused; sixth somite subquadrate, lateral margins sinuous; telson triangular, slightly shorter than sixth somite. Female abdomen with somites 3–6 articulated; sixth abdominal somite trapezoidal, lateral margins sinuous, distally with rounded concavities fitting conic ‘buttons’ raised on margins of abdominal cavity; telson ogival, as long as sixth somite. Chelipeds massive, subequal. Merus dorsodistally bispinose, distal spine longer, stouter than subdistal spine. Antero-distal margin of carpus ending in triangular denticle. Upper margin of manus crested, setose, with 7 denticles, 3 proximal teeth successively larger, distal teeth laciniate. External surface of manus with rounded granules, 3 granular conic tubercles horizontally in mid chela; keel-like, indistinctly trilobate ridge above lower margin, proximal lobe triangular, margin minutely granular. Lower margin granular, serrate, serrations successively smaller proximally. Internal surface of manus with tomentose band near lower margin. Upper margin of dactylus crested, setose, proximally prominently granular; inner surface of dactylus with stridulating ridge consisting of about 30 striae, elongated, closely stacked proximally, rounded, spaced in distal half. Right chela with curved rounded tooth proximally fitting into depression in molariform tooth in pollex. Pereiopods 2–5 long, slender, laterally compressed; upper, lower margins of meri 2–5 minutely granular; carpi 2, 3 with 3 granular carinae, middle carina more prominently granular, distally spinose, carpus 4 with 2 granulate carina, distally spinose, carpus 5 with obsolete carinae, lacking terminal spine; propodi 2–4 with cristate, granular upper margin, crested upper margin of fifth P 5 propodus smooth, slanted posteriorly; dactyli longer than propodi, styliform, fluted, tips corneous. First male gonopod tapering evenly, curved, distally spinous (Fig. 9 a–d). Second male gonopod long, slender; corneous distal portion tightly crook-shaped, tip twisted inwards, up-curved (Fig. 7 c, d). Female abdominal cavity densely set with minute setae, distally (covered by telson) with patches of longer setae. Vulva covered with subhemispherical hard cap laterally bordered by smooth protuberance, triangular knob mesially. Etymology. From the Latin, arabica for the locality of the type specimens, the Arabian Sea. Remarks. Mursia arabica n. sp. shares with M. bicristimana and M. buwaya Galil & Takeda, 2004, a prominent, keel-like ridge on the outer surface of the palm and the shape of the second male gonopod. The new species differs from M. bicristimana in its shorter lateral carapace spines and the shape of the trilobate carina on second male abdominal somite. Mursia arabica n. sp. differs from M. buwaya additionally in the sculpture on the external surface of the palm. The photograph of a male specimen by Spiridonov & Apel (2007: 2864, figs. 5, 7a; SMF 22942) from the Gulf of Aden, assigned to M. bicristimana, compares well with the new species. The material from the western Gulf of Aden of Lloyd (1907) identified as M. bicristimana, may be conspecific with the new species. Loyd’s material, probably deposited in the Zoological Survey of India, Kolkata, could not be examined. Distribution. Gulf of Aden, Arabian Sea.Published as part of Kumar, Biju A., Kumar, M. Sushil & Galil, Bella S., 2013, Calappid and leucosiid crabs (Crustacea: Decapoda: Brachyura) from Kerala, India, with the description of a new species of Mursia Desmarest, 1823, from the Arabian Sea and redescription of M. bicristimana Alcock & Anderson, 1894, pp. 529-551 in Zootaxa 3746 (4) on pages 539-543, DOI: 10.11646/zootaxa.3746.4.2, http://zenodo.org/record/24897
Monatractides tuzovskyi Pesic, N. Kumar, K. Kumar & S. Kumar 2006
No full text<i>Monatractides</i> cf. <i>tuzovskyi</i> Pesic, N. Kumar, K. Kumar & S. Kumar, 2006 (in Kumar <i>et al.</i> 2006) <p>(Figs. 69–74)</p> <p> <b>Material.</b> Thailand: River at km. 13, 465 m asl, Doi Inthanon NP, 25.xi.2007, 18° 31.532 N 98° 39.091 E, leg. Smit 0/8/0 (0/2/0 mounted); fast flowing stream crossing road to Den Ya Kat Station, 410 m asl, Chiang Dao NP, 23.xi.2007, 19° 19.735 N 98° 56.201 E, leg. Smit 0/1/0 (0/1/0 mounted); Thorntip Waterfall, Kaeng Krachan NP, 29.xi.2007, 12° 50.952 N 99° 18.498 E, leg. Smit 0/1/0.</p> <p> <b>Morphology.</b> <i>Female</i> (from River at km. 13, in parentheses specimen from Den Ya Kat Station): Idiosoma (ventral view: Fig. 70) L 694 (709), W 431 (431); dorsal shield (Fig. 69) L 575 (566), W 343 (363), L/W ratio 1.68 (1.56); dorsal plate L 538 (531); shoulder plate L 140 (134), W 53 (53), L/W ratio 2.6 (2.5); frontal plate L 109 (100), W 47 (44), L/W ratio 2.3 (2.3); shoulder/frontal plate L ratio 1.28; capitular bay L 131, W 45, L/W ratio 2.9; Cx-1 total L 236 (239), Cx-1 medial L 103, Cx-2+3 medial 44 (31); ratio Cx-1 L/ Cx-2+3 medial L 5.4 (7.7); Cx-1 medial L/Cx-2+3 medial L 2.3; genital field L/W 141 (141)/116 (116), L/W ratio 1.2 (1.2); distance genital field–excretory pore 197 (202), genital field–caudal idiosoma margin 269 (278); capitulum (Fig. 73) ventral L 173 (176); chelicera L 198 (192); palp (Fig. 72) total L 166 (166), L: P-1 23 (21), P-2 50 (49), P-3 32 (35), P-4 41 (41), P-5 20 (20); %L (given as % of total L): P-1 13.8 (12.7), P-2 30.1 (29.5), P-3 19.3 (21.1), P-4 24.7 (24.7), P-5 12.1 (12.1); P-2/P-4 ratio 1.2 (1.2); L I-Leg-4-6 (Fig. 74): 82 (76), 80 (74), 86 (85); I-Leg-6 L/W ratio 2.26 (2.24).</p> <p> <b>Remarks</b>. The specimens from Thailand agree with <i>Monatractides tuzovskyi</i> Pesic <i>et al.</i> 2006 due to the elongated idiosoma (e.g., dorsal shield L/W>1.5), P-2 and P-3 with a heavy ventral setae, P-4 without ventral denticles, a capitulum with elongated rostrum and Cx-4 posteriorly extended far beyond the genital field. Differences (in parentheses data taken from Kumar <i>et al.</i> 2006) are found in its smaller idiosoma and palp dimensions (e.g., idiosoma L 831, dorsal shield L 681, genital field L/W 169/132, palp total L 180). However, due to the fact that the male is not yet described, this is only a tentative assignment. The variability needs to be examined to clarify the taxonomy.</p> <p> <b>Distribution</b>. India (Western Himalayas). New for Thailand.</p>Published as part of <i>Pesic, Vladimir & Smit, Harry, 2009, Water mites of the family Torrenticolidae (Acari: Hydrachnidia) from Thailand, Part II. The genus Monatractides K. Viets, pp. 1-27 in Zootaxa 2012</i> on page 17, DOI: <a href="http://zenodo.org/record/185830">10.5281/zenodo.185830</a>
Bibliographics for the 983 eprints in the live archives of E-LIS : trends and status report up to 7th July 2004, based on author-self-archiving metadata
No full textThe priority for ideas and philosophy related to "Network Theory" have been traced back and documented by Braun(2004),and credit goes to Karinthy(1929).The IT has empowered to realise it, as the most practical phenomena and it is no more a humour. The OAI (Open Archives Initiatives)and ACIS (Academic Contributor Information System)are progressive in the direction ,which may lead to realise the "Collective Genius" at global level. Focus of present study is on Author-Self-Archiving (A-S-A)Metadata of the 983 Eprints in the Live Archives of the E-LIS (EPrints of Library and Information Science),which were approved till 7th July 2004.The A-S-A Metadata was used for librametric analysis. Self-explanatory bibliographics are illustrated.The highlights include: Conference papers (34%); highest approval, June 2004 (28%); published archives (76%);not refereed (52%); not in public domain (60%); highest self-archiving-author (De Robbio, Antonella).The Nos. of EPrints having single JITA domain specifications were: Theoretical and general aspects of libraries and information(27); Information use and sociology of information(80);Users,literacy and reading(13);Libraries as physical collections(30);Publishing and legal issues(57);Management(13);Industry, profession and education(36);Information sources, supports, channels(113) ; Information treatment for information services, Information functions and techniques (101); Technical services libraries, archives and museums(25); Housing technologies(1); Information technology and library technology(92); and Inter-domainery (395) i.e. having specifications of two or more than two JITA classes
Chamaeanthus longi cheila (Aver. & Nuraliev) Vuong & Kumar, comb. nov.
No full textChamaeanthus longi cheila (Aver. & Nuraliev) Vuong & Kumar comb. nov. Basionym: Biermannia longicheila Averyanov & Nuraliev, Phytotaxa 343: 194 (2018); Type:— VIETNAM. Gia Lai Province: K’Bang District, K’rong Municipality, Kon Ka Kinh National Park, 620 m, 9 May 2017, Nuraliev, Kuznetsov, Kuznetsova 1726 (holotype LE!).Published as part of Pham, P. D., Kumar, P., Dang, V. S., Nguyen, D. H., Bui, V. H., Tu, B. N., Dang, M. Q. & Truong, B. V., 2021, Pham et al. (2021) Notes on the genus Chamaeanthus (Orchidaceae, Epidendroideae, Vandeae, Aeridinae) with a new species from Vietnam. Phytotaxa 524 (2): 131 - 134., pp. 70 in Phytotaxa 528 (1) on page 70, DOI: 10.11646/phytotaxa.528.1.10, http://zenodo.org/record/577012
Phosphorylation interferes with maturation of amyloid-β fibrillar structure in the N terminus
No full textNeurodegeneration is characterized by the ubiquitous presence of modifications in protein deposits. Despite their potential significance in the initiation and progression of neurodegenerative diseases, the effects of posttranslational modifications on the molecular properties of protein aggregates are largely unknown. Here, we study the Alzheimer disease-related amyloid-β (Aβ) peptide and investigate how phosphorylation at serine 8 affects the structure of Aβ aggregates. Serine 8 is shown to be located in a region of high conformational flexibility in monomeric Aβ, which upon phosphorylation undergoes changes in local conformational dynamics. Using hydrogendeuterium exchange NMR and fluorescence quenching techniques, we demonstrate that Aβ phosphorylation at serine 8 causes structural changes in the N-terminal region of Aβ aggregates in favor of less compact conformations. Structural changes induced by serine 8 phosphorylation can provide a mechanistic link between phosphorylation and other biological events that involve the N-terminal region of Aβ aggregates. Our data therefore support an important role of posttranslational modifications in the structural polymorphism of amyloid aggregates and their modulatory effect on neurodegeneration
Panus bambusinus N. Vinjusha & T. K. A. Kumar, comb. nov.
No full text<i>Panus bambusinus</i> (T.K.A. Kumar & Manim.) N. Vinjusha & T.K.A. Kumar <i>comb. nov.</i> <p> Basionym:— <i>Lentinus bambusinus</i> T.K.A. Kumar & Manim., Mycotaxon 92: 119 (2005) (Fig. 1)</p> <p> Description: <i>—Basidiomata</i> annual, small to large, solitary or caespitose, centrally stipitate. <i>Pileus</i> 15‒200 mm diam, weakly depressed in the centre or infundibuliform, concentric zone absent, squamulose when young, almost glabrous with age, wrinkled in dried specimens, yellowish brown to light brown, margin entire, dentate or irregularly lobed. <i>Hymenophore</i> lamellate. Lamellae close, decurrent, sometimes dichotomously branched, edge finely fimbriate under a 10×lens, lamellulae present in 3‒4 tiers, yellowish white. <i>Context</i> up to 6 mm thick, white. <i>Stipe</i> 40‒100 mm long, 5‒25 mm thick, central, cylindrical, even in younger specimens, tapering towards the base in older specimens, surface glabrous to matted fibrillose or strigose, sometimes with sparse and scattered squamules, yellowish white to brown, tissue solid, cream. <i>Odour</i> not distinct. <i>Spore print</i> not observed.</p> <p> <i>Basidiospores</i> 5–6.5 × 4–4.5 μm, Q=1.3–1.7, Q m =1.32, ellipsoid to ovoid, hyaline, smooth, thin-walled, with refractive guttules, inamyloid in Melzer’s reagent. <i>Basidia</i> 20‒37 × 5‒7 μm, clavate, 4 sterigmate. <i>Cheilocystidia</i> present, 22‒68 × 3‒5 μm, versiform, generally flexuose, branched towards apex, hyaline, smooth, thin-walled with obtuse tips. <i>Gloeocystidia</i> frequent on edges and sides of lamellae, 24‒48 × 6‒15 μm, mostly fusoid with acuminate tips, or narrowly clavate, hyaline, smooth, thin-walled. <i>Hyphal pegs</i> absent. <i>Hymenial trama</i> radially arranged, and dimitic. Generative hyphae 2‒6 μm wide, hyaline, smooth, thin to slightly thick-walled (up to 1 μm), branched, with clamp connections. Skeletal hyphae dominant, 2‒4 μm wide, hyaline, thick-walled (1 μm), mostly unbranched, rarely branched, septations not observed. Skeleto ligative hyphae not observed. <i>Pileal trama</i> radially arranged. Generative hyphae 2‒6 μm wide, rarely inflated up to 10 µm, hyaline, smooth, thin to slightly thick-walled (up to 1 μm), branched, with clamp connections. Skeletal hyphae dominant, 2‒6 μm wide, hyaline, thick-walled (1 μm), mostly unbranched, rarely branched, septations not observed. Skeleto ligative hyphae not observed. <i>Pileipellis</i> with scattered trichodermial patches, up to 100 μm long, made of hyphae that are 2‒4 μm wide, hyaline, thin to slightly thick-walled (up to 1 µm), with obtuse ends. <i>Stipe trama</i> interwoven. Generative hyphae 2‒5 μm wide, hyaline, smooth, thin to slightly thickwalled (up to 1 μm), branched, with clamp connections. Skeletal hyphae 2‒5 μm wide, hyaline, thick-walled (1 μm), mostly unbranched, rarely branched, septations not observed. <i>Stipitipellis</i> similar as pileipellis, made of hyphae that are 2‒4 μm wide, hyaline, mostly thin-walled, with obtuse ends.</p> <p> Specimens examined:— INDIA. Kerala State: Malappuram district, Thenjipalam, Calicut University Campus, Alt. 2 m, 1.1339° N, 75.8940° E, on dead roots and rhizomes of <i>Bambusa bambos</i>, 2 July 2004, <i>Arun Kumar AK61</i> <i>a;</i> 5 July 2004, <i>Arun Kumar AK61</i> <i>b</i> (part of the holotype deposited at L); 18 October 2004, <i>Arun Kumar AK61</i> <i>c</i>; 20 October 2004, <i>Arun Kumar AK61</i> <i>d</i>; 26 October 2004, <i>Arun Kumar AK61</i> <i>e</i>.</p>Published as part of <i>Arun Kumar, T. K., 2021, Two new combinations in the genus Panus (Panaceae, Polyporales) based on morphology and molecular phylogeny, pp. 287-294 in Phytotaxa 514 (3)</i> on page 289, DOI: 10.11646/phytotaxa.514.3.8, <a href="http://zenodo.org/record/5316276">http://zenodo.org/record/5316276</a>
Chamaeanthus canhii Vuong & Kumar, comb. nov.
No full text<i>Chamaeanthus canhii</i> (Aver.) Vuong & Kumar <i>comb. nov.</i> <p> Basionym: <i>Biermannia canhii</i> Averyanov, Taiwania 63: 123 (2018); Type:— VIETNAM. ex-cult., s.loc., 18 October 2017, N. V. Canh, L. Averyanov, T. Maisak, AL 323 a (holotype – LE!).</p>Published as part of <i>Pham, P. D., Kumar, P., Dang, V. S., Nguyen, D. H., Bui, V. H., Tu, B. N., Dang, M. Q. & Truong, B. V., 2021, Pham et al. (2021) Notes on the genus Chamaeanthus (Orchidaceae, Epidendroideae, Vandeae, Aeridinae) with a new species from Vietnam. Phytotaxa 524 (2): 131 - 134., pp. 70 in Phytotaxa 528 (1)</i> on page 70, DOI: 10.11646/phytotaxa.528.1.10, <a href="http://zenodo.org/record/5770125">http://zenodo.org/record/5770125</a>
Scientometric portrait of Nobel laureate Leland H. Hartwell
No full textLeland H. Hartwell was honoured with the Nobel Prize in Physiology or Medicine (2001) at his 62 years age and at 41 years of research publishing career. The first contribution of the author was in 1961 at the age of 22. The number of his contributions in a year peaked in 1997 when it touched 8. He had 108 publications during 1961 – 2001 in domains: Molecular Biology of Cell Cycle Regulation (43), Genetics of Cell Division (48), Genomic Re-arrangement and DNA Repair (9), Molecular Genetics of Yeast Cell Fission (5), and Drug Target Interaction (3) which were analysed for authorship pattern with his 101 collaborators. Most active researchers having number of publications with Leland H. Hartwell were : Weinert, T. A. (10), Garvik, B. M. (8), McLaughlin, C. S. (8), Jenness, D. D. (5). His productivity coefficient was 0.76 which clearly indicates that his productivity increased after 50 percentile age. Highest collaboration coefficient (1) for Leland H. Hartwell was found during 1963-1965, 1968-1969, 1977, 1981-1983, 1985-1990, 1996 and 1998-2001. Journals have been the most preferred channel of communication where, as many as 96 papers out of 108 have been published. The core journals publishing his papers were: Cell (14), Genetics (12), Mol. Cell Biol. (8), J. Bactariol. (7), J. Cell Biol. ( 7), Science (7) J. Mol. Biol.(6), Exp. Cell Res. (5), and Proc. Nat. Acad. Sci.(5). Publication density is 2.63 and Publication concentration is 14.63. Most prolific keywords in titles of publications were: Saccharomyces cerevisiae , Yeast , Cell division cycle , RAD9, DNA Damage , Genes , Cell cycle, Genetic control , Check point (s) , Cell division , Mutant of Yeast
Tight Correlation Bounds for Circuits Between AC0 and TC0
No full textWe initiate the study of generalized AC⁰ circuits comprised of arbitrary unbounded fan-in gates which only need to be constant over inputs of Hamming weight ≥ k (up to negations of the input bits), which we denote GC⁰(k). The gate set of this class includes biased LTFs like the k-OR (outputs 1 iff ≥ k bits are 1) and k-AND (outputs 0 iff ≥ k bits are 0), and thus can be seen as an interpolation between AC⁰ and TC⁰.
We establish a tight multi-switching lemma for GC⁰(k) circuits, which bounds the probability that several depth-2 GC⁰(k) circuits do not simultaneously simplify under a random restriction. We also establish a new depth reduction lemma such that coupled with our multi-switching lemma, we can show many results obtained from the multi-switching lemma for depth-d size-s AC⁰ circuits lifts to depth-d size-s^{.99} GC⁰(.01 log s) circuits with no loss in parameters (other than hidden constants).
Our result has the following applications:
- Size-2^Ω(n^{1/d}) depth-d GC⁰(Ω(n^{1/d})) circuits do not correlate with parity (extending a result of Håstad (SICOMP, 2014)).
- Size-n^Ω(log n) GC⁰(Ω(log² n)) circuits with n^{.249} arbitrary threshold gates or n^{.499} arbitrary symmetric gates exhibit exponentially small correlation against an explicit function (extending a result of Tan and Servedio (RANDOM, 2019)).
- There is a seed length O((log m)^{d-1}log(m/ε)log log(m)) pseudorandom generator against size-m depth-d GC⁰(log m) circuits, matching the AC⁰ lower bound of Håstad up to a log log m factor (extending a result of Lyu (CCC, 2022)).
- Size-m GC⁰(log m) circuits have exponentially small Fourier tails (extending a result of Tal (CCC, 2017))
Sperchon indicus N. Kumar, K. Kumar & Pesic 2007
No full textSperchon cf. indicus N. Kumar, K. Kumar & Pesic, 2007 (Figs. 8–14) Material examined. Buthan: Pele La, 01.iii. 2002, 3200 m asl., one female (ZMAN), dissected and slide mounted in Hoyer's fluid. Morphology. Female: Idiosoma (ventral view: Fig. 9) L 862, W 669. One pair of fused dorsocentral plates (Dc- 3) (Fig. 8). Coxal field: L between anterior end of first coxae and posterior end of fourth coxae 428; L of genital valves 155; genital valves not covering the genital acetabula; posterior acetabula rounded; L of acetabula 1–3: 58-65 - 33. Capitulum (Fig. 13) L 218; chelicera (Fig. 14) L 232, H 56, L/H ratio 4.1, basal segment L 167, claw L 68, ratio chelicerae basal segment/claw L 2.5; palp (Fig. 12) total L 560, dL and %L (in parentheses, given as % of total L): P- 1 25 (4.5), P- 2 128 (22.9), P- 3 163 (29.1), P- 4 200 (35.7), P- 5 44 (7.9); P- 2 /P- 4 ratio 0.64; Ambulacrum (Fig. 11) with slightly developed claw blade, claws with clawlet. L of IV–L (Fig. 10) segments: IV – 125, 125, 139, 259, 265, 219. Remarks. Due to the presence of glandularia on Cx- 3, P- 2 with a long ventrodistal projection, and excretory pore surrounded by sclerotized ring, the specimen from Bhutan shows a general conformity with Sperchon indicus Kumar et al. Differences (in parentheses data taken from Kumar et al. 2007) are found in its major idiosoma and gnathosoma dimensions (e.g., S. indicus idiosoma L 694, genital valves L 124, capitulum L 158–181, palp total L 515–544). Furthermore the specimen from Bhutan has P- 4 less elongated and the claw blade less developed (strongly developed in S. indicus – see Kumar et al. 2007). The variability of further specimens from Bhutan needs to be known and studies on male specimens of S. indicus are necessary before we can assess the taxonomic status of this specimen. Distribution. India. New for Bhutan.Published as part of Pesic, Vladimir & Smit, Harry, 2007, First records of water mites (Acari: Hydrachnidia) from Bhutan, with description of two new species, pp. 45-56 in Zootaxa 1613 on pages 47-50, DOI: 10.5281/zenodo.17899
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